Analysis

  • max time kernel
    117s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    28-12-2023 22:10

General

  • Target

    fbcf4360fb56df4b38b78e37eddaf1c4.exe

  • Size

    532KB

  • MD5

    fbcf4360fb56df4b38b78e37eddaf1c4

  • SHA1

    03b29b84188b525bc5c9d124263523829fdc5c8e

  • SHA256

    2487b086b8f7eb2387171f257406157f3ba04135cb6de6857ea783c81c1a3365

  • SHA512

    3cf6350710bb54fb8ce4b07fdd00ec1b45b36f00262570a2fd4918fb4c72e3a37724683bab2f4cd0e90179530b658a48b8e8ff1752b8f36b336424fef6a27806

  • SSDEEP

    12288:tXf2DMo6GCfdog22HXrFy+344+E9OsDYMbWMKyH/rexOww9GC:tv2DBCVx5y+3RxDYv9UCxOwwsC

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fbcf4360fb56df4b38b78e37eddaf1c4.exe
    "C:\Users\Admin\AppData\Local\Temp\fbcf4360fb56df4b38b78e37eddaf1c4.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1044
    • C:\Users\Admin\AppData\Local\Temp\n7130\s7130.exe
      "C:\Users\Admin\AppData\Local\Temp\n7130\s7130.exe" b006c4a6388a4cd8f124b8fbojL9fqcv5l92MIqCTJvTu5swoAEwacuG1eWGCEBEp/tOtFBx/CCCgE67yLie3MVpLvPwkTG4CgLSk1atZtMHGRqEU54n67okPaRfuFdyeHiJjiNFW8doc9qRp+A0cuugantuo9FfgwJNHMTGeiGNwA== /v "C:\Users\Admin\AppData\Local\Temp\fbcf4360fb56df4b38b78e37eddaf1c4.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2824

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    450ca87eba6b4a8aa230d9437d03363c

    SHA1

    1ba74f8176077bf4b16400629963ffe71930e9c3

    SHA256

    a24967eca9ea6bb3b0e52b0b82bc2d66a64b5640c3df918249ac1a0f2b37e065

    SHA512

    0f5b47f3f5755c697c3dbc8a3e90df1caa94f4be26139a2eb189cd742a62bd029e4e3bc31b73edc9ad989807ae1f5f889a306aa5decdf2f3b3ce321f83febccc

  • C:\Users\Admin\AppData\Local\Temp\Tar148F.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • \Users\Admin\AppData\Local\Temp\n7130\s7130.exe

    Filesize

    219KB

    MD5

    94a69394c365d4216dc0a267d585d13f

    SHA1

    f832d782b12836fe6ad436dfac3d97f91b1c5ebc

    SHA256

    8dafaae263c44624342156f43df4bbe158702ac7bc750c4089838f45f75829a5

    SHA512

    5daafac615d6a3b269717459524c70634976f310ca6c2d1f7f16040fa9948b7abec7f781330b9794c1f888eea4f609c4a50ec8f0987feddca2865796d2ea6ca2

  • memory/2824-205-0x00000000020A0000-0x0000000002120000-memory.dmp

    Filesize

    512KB

  • memory/2824-16-0x00000000020A0000-0x0000000002120000-memory.dmp

    Filesize

    512KB

  • memory/2824-203-0x00000000020A0000-0x0000000002120000-memory.dmp

    Filesize

    512KB

  • memory/2824-15-0x000007FEF5BA0000-0x000007FEF653D000-memory.dmp

    Filesize

    9.6MB

  • memory/2824-204-0x00000000020A0000-0x0000000002120000-memory.dmp

    Filesize

    512KB

  • memory/2824-206-0x00000000020A0000-0x0000000002120000-memory.dmp

    Filesize

    512KB

  • memory/2824-208-0x00000000020A0000-0x0000000002120000-memory.dmp

    Filesize

    512KB

  • memory/2824-209-0x000007FEF5BA0000-0x000007FEF653D000-memory.dmp

    Filesize

    9.6MB

  • memory/2824-207-0x00000000020A0000-0x0000000002120000-memory.dmp

    Filesize

    512KB

  • memory/2824-210-0x00000000020A0000-0x0000000002120000-memory.dmp

    Filesize

    512KB

  • memory/2824-211-0x000007FEF5BA0000-0x000007FEF653D000-memory.dmp

    Filesize

    9.6MB