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Analysis

  • max time kernel
    148s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2023, 19:30

General

  • Target

    1a8313a18bf33e53d0d9f4cb255ad260490b511732f04bd8c1b5aa5bcbabca5f.exe

  • Size

    198KB

  • MD5

    2b2b2cb2b03c3536bd0799beaed21ea3

  • SHA1

    eca02c9c6e9131c6e4a3a69b4680e2be5a298fff

  • SHA256

    1a8313a18bf33e53d0d9f4cb255ad260490b511732f04bd8c1b5aa5bcbabca5f

  • SHA512

    d504066ac6683da2a309055cce3c18d3b5dec9e62eb842a8403ca919d3431e9023f89e5c9ebb23e9d01623091210d80e45340ff077736db5f2c4882f42598de6

  • SSDEEP

    6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOo:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXX5

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a8313a18bf33e53d0d9f4cb255ad260490b511732f04bd8c1b5aa5bcbabca5f.exe
    "C:\Users\Admin\AppData\Local\Temp\1a8313a18bf33e53d0d9f4cb255ad260490b511732f04bd8c1b5aa5bcbabca5f.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\1A8313~1.EXE > nul
      2⤵
        PID:2620
    • C:\Windows\Debug\zskhost.exe
      C:\Windows\Debug\zskhost.exe
      1⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:2252

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\debug\zskhost.exe

      Filesize

      198KB

      MD5

      79ea5cd3debfa51260539d89fab55afa

      SHA1

      1cf71635b91164c4cbaed1988af75be949d4d1d2

      SHA256

      bd95dfcf92728a649877c49ac1fc117c1e03c023c3debb0ba4f49acde4e484c7

      SHA512

      83feedbb07cd0e7b674ce5f605ae7fd5d288acb3b69f516426c4c9d3585eaeabdbc8dce8d16fba7da272c38d8408225e1177c688a57303ff0cc41493219f8b4c