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Overview

overview

8

Static

static

3

a23154ec6c...b4.exe

windows7-x64

8

a23154ec6c...b4.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    24/02/2024, 15:31

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General

  • Target

    a23154ec6c70e15f8352c7b170e3a7b4.exe

  • Size

    18KB

  • MD5

    a23154ec6c70e15f8352c7b170e3a7b4

  • SHA1

    1f270a5b3c689e76aadf912cb8d4122ca7435a1a

  • SHA256

    43fcdb73275eb4922c51f78b6c0a55e36b4e460d0bfcb2a9d83a764d7f526f8c

  • SHA512

    8e61cafef28fcf009c1f0da0d770494929c6d8a8161e02c092f9650a18674a04233a6eecd15b680305105649692749628e679e3f0e9261948dea4a36989c5c5b

  • SSDEEP

    384:k+YUthRZYLbRTr2P0d9UI4FrJCO97GIKp+YeaTvQMJOmkRNw/:YUBS0PUUDFrJCO96IpYegvTt5/

Score
8/10
persistence

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a23154ec6c70e15f8352c7b170e3a7b4.exe
    "C:\Users\Admin\AppData\Local\Temp\a23154ec6c70e15f8352c7b170e3a7b4.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Windows\SysWOW64\ishost.exe
      C:\Windows\system32\ishost.exe
      2⤵
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3004
      • C:\Windows\SysWOW64\ismini.exe
        C:\Windows\system32\ismini.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:2488
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A23154~1.EXE > nul
      2⤵
      • Deletes itself
      PID:2492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\SysWOW64\ishost.exe
    Filesize

    35KB

    MD5

    4ffb3e402a8b86a84b014a929d92a389

    SHA1

    79a5e113d2594228832fa669509fe370507b1d34

    SHA256

    728ba8e00efc37791f388b051518da8aafbaa17302c9eb68178765a1833b817f

    SHA512

    439764d2f8365ecea22adb107210be7b64a5cb526c13c923eb7f4d742f2631c8b490b1a18b7d22ad319945ab260aff757b1aff99c301872ebb4f863f817d40d8

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  • \Windows\SysWOW64\ismini.exe
    Filesize

    5KB

    MD5

    f8a526f12d2f57d8cfc14faa20ddec12

    SHA1

    5f24123bf1d6f3925076d25675a064fc68bec790

    SHA256

    5d4f365147413d8f20e977c5dcbf1b76ab3eb4e10a4feac88e8bf373258dfa4b

    SHA512

    cf08754668f35397b39109e9e6b4efb46d8d6ec2e44bb9a2714ada4789d3991544cb7bec750b88126a8e3ac42761d64a6ef3de9678cc29e86e97067e11c47f8a

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