Patchfirst

Bitter APT adds Bangladesh to their targets

blog.talosintelligence.com · 11 May 2022 · Licence: not assessed; coordinator-only cache; do not redistribute

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CVEs this report names

4 CVEs
  1. CVE-2017-11882Microsoft Office Memory Corruption Vulnerability
    Microsoft · OfficeKEVRansomwarePublic exploitHigh · 7.8T1566.001Spearphishing AttachmentT1059Command and Scripting Interpreter13 reports
    99.9%Top 0.03%
    88.5priority
  2. CVE-2018-0802Microsoft Office Memory Corruption Vulnerability
    Microsoft · OfficeKEVRansomwarePublic exploitHigh · 7.8T1204.002Malicious FileT1203Exploitation for Client Execution8 reports
    93.3%Top 0.17%
    88.4priority
  3. CVE-2018-0798Microsoft Office Memory Corruption Vulnerability
    Microsoft · OfficeKEVPublic exploitHigh · 8.8T1204.002Malicious FileT1203Exploitation for Client Execution5 reports
    95.1%Top 0.14%
    79.1priority
  4. CVE-2021-28310Microsoft Win32k Privilege Escalation Vulnerability
    Microsoft · Win32kKEVPublic exploitHigh · 7.8T1068Exploitation for Privilege Escalation1 report
    8.4%Top 5%
    71.3priority

Where it names them

CVE-2017-11882
the Equation Editor application is automatically launched to run the embedded objects containing the shellcode to exploit known vulnerabilities described by CVE-2017-11882, CVE-2018-0798 and CVE-2018-0802 — all in Microsoft Office — then downloads the trojan from the hosting server and runs it on the victim's
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The Malicious RTF document is weaponized to exploit the stack overflow vulnerability CVE-2017-11882, which enables arbitrary code execution on victims' machines running vulnerable versions of Microsoft Office.
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CVE-2018-0802
the Equation Editor application is automatically launched to run the embedded objects containing the shellcode to exploit known vulnerabilities described by CVE-2017-11882, CVE-2018-0798 and CVE-2018-0802 — all in Microsoft Office — then downloads the trojan from the hosting server and runs it on the victim's
Original (opens in a new tab) ↗
The malicious Excel spreadsheet is weaponized to exploit the Microsoft Office memory corruption vulnerabilities CVE-2018-0798 and CVE-2018-0802.
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CVE-2018-0798
the Equation Editor application is automatically launched to run the embedded objects containing the shellcode to exploit known vulnerabilities described by CVE-2017-11882, CVE-2018-0798 and CVE-2018-0802 — all in Microsoft Office — then downloads the trojan from the hosting server and runs it on the victim's
Original (opens in a new tab) ↗
The malicious Excel spreadsheet is weaponized to exploit the Microsoft Office memory corruption vulnerabilities CVE-2018-0798 and CVE-2018-0802.
Original (opens in a new tab) ↗
CVE-2021-28310
For example, in 2021, security researchers discovered that the adversary was exploiting the zero-day vulnerability CVE-2021-28310, a security flaw in Microsoft's Desktop Manager.
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Techniques drawn from this report

None

No passage in this report has been tied to an ATT&CK technique.

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