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Analysis

  • max time kernel
    172s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 23:43

General

  • Target

    47b4387dccee5ac46b429a7f0561186d863c427e608a34f7a14ffcb26998d631.exe

  • Size

    2.1MB

  • MD5

    5fcbabd5a95705ff761a2b41b5971e67

  • SHA1

    1ab7f5a42be348c9d3bc96f5d6805e70ac9888c0

  • SHA256

    47b4387dccee5ac46b429a7f0561186d863c427e608a34f7a14ffcb26998d631

  • SHA512

    23ec990521e8b4ceea5306735c309dd7d88663990883fcf364c0870aca110c62e594a36ed9cd8fcaf9da9006f99e190ee04ae2185c6a64638e3e93d657c2b708

  • SSDEEP

    49152:JbEpdIgOGOaSOFl4KK5+pq1UvM0iTnDJJZk425V/zaBM3Sbawwtl/:JsjOTOI5U4UvMba4aBN3SbA/

Malware Config

Signatures

  • FatalRat

    FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

  • Fatal Rat payload 12 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\47b4387dccee5ac46b429a7f0561186d863c427e608a34f7a14ffcb26998d631.exe
    "C:\Users\Admin\AppData\Local\Temp\47b4387dccee5ac46b429a7f0561186d863c427e608a34f7a14ffcb26998d631.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1396
    • C:\Users\Public\Pictures\Powermonster.exe
      "C:\Users\Public\Pictures\Powermonster.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4256

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Public\Pictures\Powermonster.exe

    Filesize

    2.5MB

    MD5

    842af33f5702fa99efd8f7b235f28fcc

    SHA1

    b841b71a4e39432f3a940ad841e74ea1686da6c9

    SHA256

    82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

    SHA512

    ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

  • C:\Users\Public\Pictures\Powermonster.exe

    Filesize

    2.5MB

    MD5

    842af33f5702fa99efd8f7b235f28fcc

    SHA1

    b841b71a4e39432f3a940ad841e74ea1686da6c9

    SHA256

    82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

    SHA512

    ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

  • C:\Users\Public\Pictures\Powermonster.exe

    Filesize

    2.5MB

    MD5

    842af33f5702fa99efd8f7b235f28fcc

    SHA1

    b841b71a4e39432f3a940ad841e74ea1686da6c9

    SHA256

    82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

    SHA512

    ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

  • C:\Users\Public\Pictures\libcurl.dll

    Filesize

    898KB

    MD5

    ed68b13846fa29395ac2957be995824d

    SHA1

    0ba78675aee81f5da503a23a1e7dfcd225771392

    SHA256

    b743061735e66db8e38c7af2f53580df5901c611f215b63223eac213d467e1e1

    SHA512

    d4384e6396adb18699c073c7090bd1948bb4c9d45437313c7607b9676182299edd74dba91486d806c413dec4c9f0a83441a460b47fc17190bd9e0c3040ffc3d8

  • C:\Users\Public\Pictures\libcurl.dll

    Filesize

    898KB

    MD5

    ed68b13846fa29395ac2957be995824d

    SHA1

    0ba78675aee81f5da503a23a1e7dfcd225771392

    SHA256

    b743061735e66db8e38c7af2f53580df5901c611f215b63223eac213d467e1e1

    SHA512

    d4384e6396adb18699c073c7090bd1948bb4c9d45437313c7607b9676182299edd74dba91486d806c413dec4c9f0a83441a460b47fc17190bd9e0c3040ffc3d8

  • memory/4256-23-0x00000000053E0000-0x00000000053E2000-memory.dmp

    Filesize

    8KB

  • memory/4256-32-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-18-0x00000000774E4000-0x00000000774E6000-memory.dmp

    Filesize

    8KB

  • memory/4256-19-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-20-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-21-0x00000000053D0000-0x00000000053D1000-memory.dmp

    Filesize

    4KB

  • memory/4256-22-0x00000000053F0000-0x00000000053F1000-memory.dmp

    Filesize

    4KB

  • memory/4256-16-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-24-0x0000000005390000-0x00000000053C6000-memory.dmp

    Filesize

    216KB

  • memory/4256-17-0x0000000002CC0000-0x0000000002D5D000-memory.dmp

    Filesize

    628KB

  • memory/4256-33-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-34-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-35-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-36-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-37-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-38-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-39-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-40-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-41-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB

  • memory/4256-42-0x0000000010000000-0x0000000010202000-memory.dmp

    Filesize

    2.0MB