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Analysis

  • max time kernel
    128s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    14/12/2024, 01:02

General

  • Target

    790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe

  • Size

    3.0MB

  • MD5

    a5c760e458503463ed3902bdbf605e4e

  • SHA1

    2fb83c914783070267e42dbad89fd2c7afc9d9af

  • SHA256

    790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32

  • SHA512

    5b905facc4db2afb1dec0460b965c705c2566d91e2db7a95bc23cbd7dc8cbdb9414d4b4a6306e7a57d5ff4eb658910f12497608d5442cc5d8c740dc5be446b5b

  • SSDEEP

    49152:XP7p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpiu/nRFfjI7L0qb:XPHTPJg8z1mKnypSbRxo9JCm

Malware Config

Extracted

Family

orcus

Botnet

Mamont

C2

31.44.184.52:38135

Mutex

sudo_hukjod904skbxj09l4njrec7guj3gu0r

Attributes
  • autostart_method

    Disable

  • enable_keylogger

    false

  • install_path

    C:\ProgramData\$77RegAsm.exe

  • reconnect_delay

    10000

  • registry_keyname

    Sudik

  • taskscheduler_taskname

    sudik

  • watchdog_path

    AppData\aga.exe

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcus family
  • Orcus main payload 1 IoCs
  • Orcurs Rat Executable 9 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe
    "C:\Users\Admin\AppData\Local\Temp\790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\ProgramData\$77RegAsm.exe
      "C:\ProgramData\$77RegAsm.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2844
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2628
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {A1601603-D253-49C2-AEE1-839271F79074} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2612
    • C:\ProgramData\$77RegAsm.exe
      C:\ProgramData\$77RegAsm.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1128
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:600
    • C:\ProgramData\$77RegAsm.exe
      C:\ProgramData\$77RegAsm.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2432
    • C:\ProgramData\$77RegAsm.exe
      C:\ProgramData\$77RegAsm.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:908

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\$77RegAsm.exe.config

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

  • C:\Users\Admin\AppData\Local\Temp\Cab5B0D.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • \ProgramData\$77RegAsm.exe

    Filesize

    3.0MB

    MD5

    a5c760e458503463ed3902bdbf605e4e

    SHA1

    2fb83c914783070267e42dbad89fd2c7afc9d9af

    SHA256

    790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32

    SHA512

    5b905facc4db2afb1dec0460b965c705c2566d91e2db7a95bc23cbd7dc8cbdb9414d4b4a6306e7a57d5ff4eb658910f12497608d5442cc5d8c740dc5be446b5b

  • memory/600-43-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/908-69-0x0000000000210000-0x000000000050E000-memory.dmp

    Filesize

    3.0MB

  • memory/2628-65-0x0000000004580000-0x000000000458E000-memory.dmp

    Filesize

    56KB

  • memory/2628-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2628-47-0x0000000000DA0000-0x0000000000DB8000-memory.dmp

    Filesize

    96KB

  • memory/2628-33-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/2628-24-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/2628-26-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/2628-66-0x0000000004C30000-0x0000000004C32000-memory.dmp

    Filesize

    8KB

  • memory/2628-48-0x0000000002270000-0x0000000002280000-memory.dmp

    Filesize

    64KB

  • memory/2628-22-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/2628-28-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/2628-32-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/2628-31-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/2716-3-0x0000000074E80000-0x000000007556E000-memory.dmp

    Filesize

    6.9MB

  • memory/2716-2-0x0000000000570000-0x000000000057E000-memory.dmp

    Filesize

    56KB

  • memory/2716-5-0x0000000000600000-0x0000000000612000-memory.dmp

    Filesize

    72KB

  • memory/2716-16-0x0000000074E80000-0x000000007556E000-memory.dmp

    Filesize

    6.9MB

  • memory/2716-4-0x00000000010C0000-0x000000000111C000-memory.dmp

    Filesize

    368KB

  • memory/2716-1-0x00000000011F0000-0x00000000014EE000-memory.dmp

    Filesize

    3.0MB

  • memory/2716-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

    Filesize

    4KB

  • memory/2844-17-0x0000000000C20000-0x0000000000F1E000-memory.dmp

    Filesize

    3.0MB

  • memory/2844-34-0x0000000074E80000-0x000000007556E000-memory.dmp

    Filesize

    6.9MB

  • memory/2844-20-0x0000000002400000-0x000000000244E000-memory.dmp

    Filesize

    312KB

  • memory/2844-19-0x00000000005D0000-0x00000000005E2000-memory.dmp

    Filesize

    72KB

  • memory/2844-18-0x0000000074E80000-0x000000007556E000-memory.dmp

    Filesize

    6.9MB