Analysis

  • max time kernel
    190s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:32

General

  • Target

    f046399aae7fc8d3d428ffc16789f631c108078bb4244f3c24e1860804628b86.exe

  • Size

    208KB

  • MD5

    a8de99de0cbc35a66872785ac9d11750

  • SHA1

    af75fe464fbca3c6192fccb2b56a4b50e101b7fb

  • SHA256

    f046399aae7fc8d3d428ffc16789f631c108078bb4244f3c24e1860804628b86

  • SHA512

    6d17a9f631503c3d9e05a756791bbf9a424a1f9d3e4469d7b7f1af77addf6cb88e83189967a79a22823f262f9e066102cd87c46c270c14210bac97dbf1261ef5

  • SSDEEP

    1536:Vfuxw10lxJM5y8w5OZRVmgyDl+cWaxJcveQZNTRSb3EBAR1AlQPsxjheYhpXN5yh:f0OtF2Qo7VsJgisxlYegEX0ZZbW

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • UPX packed file 17 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f046399aae7fc8d3d428ffc16789f631c108078bb4244f3c24e1860804628b86.exe
    "C:\Users\Admin\AppData\Local\Temp\f046399aae7fc8d3d428ffc16789f631c108078bb4244f3c24e1860804628b86.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Users\Admin\AppData\Local\Temp\f046399aae7fc8d3d428ffc16789f631c108078bb4244f3c24e1860804628b86.exe
      "C:\Users\Admin\AppData\Local\Temp\f046399aae7fc8d3d428ffc16789f631c108078bb4244f3c24e1860804628b86.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\ETUSA.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1840
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svhust" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe" /f
          4⤵
          • Adds Run key to start application
          PID:652
      • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
        "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1884
        • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
          "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1804
        • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
          "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Suspicious use of FindShellTrayWindow
          PID:1716

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\ETUSA.bat
    Filesize

    141B

    MD5

    e83a2e0b3c1e03dfb96ffd9924117a45

    SHA1

    27a3e4ba115ba1bad0bf094f5b97e768d1ece33e

    SHA256

    655407d94fff9e707712a588d97a2017cc1c9d690a67c688ed0abcb79e452b13

    SHA512

    5f61686a3b7db3544d83a4f2ce1a75868c7dc266709f72a34eafecc3a26696a985b1912a559aed8f5a2cacbfe26be9beae2374340d1801bb18473de785557480

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    2d161e4751b2f82e40bafbe3fe3d8a2a

    SHA1

    1a3ea226df501abf2a3c49b3ad75868b9a476e5f

    SHA256

    1f0d92bc98895580d004d4429364e64e84a2a029885f6dabd761e0f795ceecac

    SHA512

    23d625dfbc091334befca98a269e4074059056849a6e1c5e14120caee06a7e67f21b917182b91e6a7a52115e48bd77aea19ccc64765f59e64670e28b1cb972a2

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    2d161e4751b2f82e40bafbe3fe3d8a2a

    SHA1

    1a3ea226df501abf2a3c49b3ad75868b9a476e5f

    SHA256

    1f0d92bc98895580d004d4429364e64e84a2a029885f6dabd761e0f795ceecac

    SHA512

    23d625dfbc091334befca98a269e4074059056849a6e1c5e14120caee06a7e67f21b917182b91e6a7a52115e48bd77aea19ccc64765f59e64670e28b1cb972a2

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    2d161e4751b2f82e40bafbe3fe3d8a2a

    SHA1

    1a3ea226df501abf2a3c49b3ad75868b9a476e5f

    SHA256

    1f0d92bc98895580d004d4429364e64e84a2a029885f6dabd761e0f795ceecac

    SHA512

    23d625dfbc091334befca98a269e4074059056849a6e1c5e14120caee06a7e67f21b917182b91e6a7a52115e48bd77aea19ccc64765f59e64670e28b1cb972a2

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    2d161e4751b2f82e40bafbe3fe3d8a2a

    SHA1

    1a3ea226df501abf2a3c49b3ad75868b9a476e5f

    SHA256

    1f0d92bc98895580d004d4429364e64e84a2a029885f6dabd761e0f795ceecac

    SHA512

    23d625dfbc091334befca98a269e4074059056849a6e1c5e14120caee06a7e67f21b917182b91e6a7a52115e48bd77aea19ccc64765f59e64670e28b1cb972a2

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    2d161e4751b2f82e40bafbe3fe3d8a2a

    SHA1

    1a3ea226df501abf2a3c49b3ad75868b9a476e5f

    SHA256

    1f0d92bc98895580d004d4429364e64e84a2a029885f6dabd761e0f795ceecac

    SHA512

    23d625dfbc091334befca98a269e4074059056849a6e1c5e14120caee06a7e67f21b917182b91e6a7a52115e48bd77aea19ccc64765f59e64670e28b1cb972a2

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    2d161e4751b2f82e40bafbe3fe3d8a2a

    SHA1

    1a3ea226df501abf2a3c49b3ad75868b9a476e5f

    SHA256

    1f0d92bc98895580d004d4429364e64e84a2a029885f6dabd761e0f795ceecac

    SHA512

    23d625dfbc091334befca98a269e4074059056849a6e1c5e14120caee06a7e67f21b917182b91e6a7a52115e48bd77aea19ccc64765f59e64670e28b1cb972a2

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    2d161e4751b2f82e40bafbe3fe3d8a2a

    SHA1

    1a3ea226df501abf2a3c49b3ad75868b9a476e5f

    SHA256

    1f0d92bc98895580d004d4429364e64e84a2a029885f6dabd761e0f795ceecac

    SHA512

    23d625dfbc091334befca98a269e4074059056849a6e1c5e14120caee06a7e67f21b917182b91e6a7a52115e48bd77aea19ccc64765f59e64670e28b1cb972a2

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    2d161e4751b2f82e40bafbe3fe3d8a2a

    SHA1

    1a3ea226df501abf2a3c49b3ad75868b9a476e5f

    SHA256

    1f0d92bc98895580d004d4429364e64e84a2a029885f6dabd761e0f795ceecac

    SHA512

    23d625dfbc091334befca98a269e4074059056849a6e1c5e14120caee06a7e67f21b917182b91e6a7a52115e48bd77aea19ccc64765f59e64670e28b1cb972a2

  • memory/652-73-0x0000000000000000-mapping.dmp
  • memory/1120-56-0x000000000064D000-0x0000000000663000-memory.dmp
    Filesize

    88KB

  • memory/1716-100-0x0000000000476940-mapping.dmp
  • memory/1716-94-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1716-115-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1716-114-0x0000000074301000-0x0000000074303000-memory.dmp
    Filesize

    8KB

  • memory/1716-112-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1716-111-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1716-110-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1716-108-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1716-99-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1716-97-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1716-92-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1736-63-0x00000000004085D0-mapping.dmp
  • memory/1736-70-0x0000000075891000-0x0000000075893000-memory.dmp
    Filesize

    8KB

  • memory/1736-61-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1736-62-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1736-66-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1736-58-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1736-59-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1736-105-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1736-65-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1736-69-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1804-107-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1804-90-0x00000000004085D0-mapping.dmp
  • memory/1804-113-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1840-71-0x0000000000000000-mapping.dmp
  • memory/1884-82-0x000000000063D000-0x0000000000652000-memory.dmp
    Filesize

    84KB

  • memory/1884-78-0x0000000000000000-mapping.dmp