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Analysis

  • max time kernel
    148s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2023, 23:14

General

  • Target

    39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe

  • Size

    2.1MB

  • MD5

    08c7b4532ef227cfa186f591572769da

  • SHA1

    7481a96a7756aff20a893ebc1a037d3ab91356dd

  • SHA256

    39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74

  • SHA512

    c1cfa72cf16d2574ab7bc9c5318e64acc2434922363092aff19468ff251a149d737d0249a404716227be9fe6133d39aa110fcb7833b6232bcd3bf4889a3dd331

  • SSDEEP

    49152:+bCsqGs57WcQgDO+Ivam8M0iTnDJJZk425V/zaBM3Sbawwtl:+3e57UgSZ8Mba4aBN3SbA

Malware Config

Signatures

  • FatalRat

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

  • Fatal Rat payload 21 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

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

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

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 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 behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe
    "C:\Users\Admin\AppData\Local\Temp\39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4656
    • C:\Users\Public\Pictures\Powermonster.exe
      "C:\Users\Public\Pictures\Powermonster.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks computer location settings
      • 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
      • Suspicious use of WriteProcessMemory
      PID:2740
      • C:\Users\Admin\AppData\Local\Powermonster.exe
        "C:\Users\Admin\AppData\Local\Powermonster.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Executes dropped EXE
        • Identifies Wine through registry keys
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Powermonster.exe

    Filesize

    2.5MB

    MD5

    842af33f5702fa99efd8f7b235f28fcc

    SHA1

    b841b71a4e39432f3a940ad841e74ea1686da6c9

    SHA256

    82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

    SHA512

    ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

  • C:\Users\Admin\AppData\Local\Powermonster.exe

    Filesize

    2.5MB

    MD5

    842af33f5702fa99efd8f7b235f28fcc

    SHA1

    b841b71a4e39432f3a940ad841e74ea1686da6c9

    SHA256

    82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

    SHA512

    ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

  • C:\Users\Admin\AppData\Local\libcurl.dll

    Filesize

    918KB

    MD5

    4106c995b5693909f85c782ee75dd49d

    SHA1

    6eca500e40d80c3a9fbf50ad70a4328b607293b9

    SHA256

    d52d0320a4e66c4cbece5963723f822b4b4809a0ca9d9ea6e310a170e604398c

    SHA512

    2f59d3be9dd83bb84fc2a22dd7edcbd6f999af2c873f551563e5a2049b2cf7e582edaeeaeb0acaca25422910edd01322a16e60643df6ba89f376c67c25787ebb

  • C:\Users\Admin\AppData\Local\libcurl.dll

    Filesize

    918KB

    MD5

    4106c995b5693909f85c782ee75dd49d

    SHA1

    6eca500e40d80c3a9fbf50ad70a4328b607293b9

    SHA256

    d52d0320a4e66c4cbece5963723f822b4b4809a0ca9d9ea6e310a170e604398c

    SHA512

    2f59d3be9dd83bb84fc2a22dd7edcbd6f999af2c873f551563e5a2049b2cf7e582edaeeaeb0acaca25422910edd01322a16e60643df6ba89f376c67c25787ebb

  • 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

    918KB

    MD5

    4106c995b5693909f85c782ee75dd49d

    SHA1

    6eca500e40d80c3a9fbf50ad70a4328b607293b9

    SHA256

    d52d0320a4e66c4cbece5963723f822b4b4809a0ca9d9ea6e310a170e604398c

    SHA512

    2f59d3be9dd83bb84fc2a22dd7edcbd6f999af2c873f551563e5a2049b2cf7e582edaeeaeb0acaca25422910edd01322a16e60643df6ba89f376c67c25787ebb

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

    Filesize

    918KB

    MD5

    4106c995b5693909f85c782ee75dd49d

    SHA1

    6eca500e40d80c3a9fbf50ad70a4328b607293b9

    SHA256

    d52d0320a4e66c4cbece5963723f822b4b4809a0ca9d9ea6e310a170e604398c

    SHA512

    2f59d3be9dd83bb84fc2a22dd7edcbd6f999af2c873f551563e5a2049b2cf7e582edaeeaeb0acaca25422910edd01322a16e60643df6ba89f376c67c25787ebb

  • memory/2740-38-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-17-0x0000000002FB0000-0x000000000304D000-memory.dmp

    Filesize

    628KB

  • memory/2740-22-0x00000000056A0000-0x00000000056A2000-memory.dmp

    Filesize

    8KB

  • memory/2740-25-0x00000000056B0000-0x00000000056B1000-memory.dmp

    Filesize

    4KB

  • memory/2740-31-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-32-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-33-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-34-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-35-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-36-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-37-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-20-0x0000000005690000-0x0000000005691000-memory.dmp

    Filesize

    4KB

  • memory/2740-39-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-40-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-41-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-19-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-18-0x0000000077204000-0x0000000077206000-memory.dmp

    Filesize

    8KB

  • memory/2740-21-0x0000000005650000-0x0000000005686000-memory.dmp

    Filesize

    216KB

  • memory/2740-52-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/2740-16-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/3416-65-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/3416-56-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/3416-57-0x0000000004F60000-0x0000000004F96000-memory.dmp

    Filesize

    216KB

  • memory/3416-59-0x0000000004F30000-0x0000000004F31000-memory.dmp

    Filesize

    4KB

  • memory/3416-60-0x0000000004F50000-0x0000000004F51000-memory.dmp

    Filesize

    4KB

  • memory/3416-62-0x0000000004F40000-0x0000000004F42000-memory.dmp

    Filesize

    8KB

  • memory/3416-55-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/3416-66-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/3416-67-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/3416-68-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/3416-69-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/3416-70-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB

  • memory/3416-71-0x0000000010000000-0x0000000010207000-memory.dmp

    Filesize

    2.0MB