Analysis

  • max time kernel
    151s
  • max time network
    79s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29/10/2022, 15:52

General

  • Target

    7987bf9d806353760c55ac04660ca64e7b229ad0610881c5897de6200d042233.exe

  • Size

    357KB

  • MD5

    445b348512ff56a95b2912bec61dbdd1

  • SHA1

    24eb3d44b8f192230cb8019ed0f606c6293751f8

  • SHA256

    7987bf9d806353760c55ac04660ca64e7b229ad0610881c5897de6200d042233

  • SHA512

    575170a0e4af69dbed6423d4f8258d9cd0b23dfb78b17cf5ee447b1c653229fd0cdd73271c64669dcf40c6ca6ccb0ce410f8acf6d83a20c0a42081ba0319a8e7

  • SSDEEP

    6144:pD2r5WlgraH6wd5CsZ28ewwGWIv4de+WYgblLSkbUg3/:pDA8lTa6CsErG+deizkv

Malware Config

Extracted

Family

darkcomet

Botnet

BENIN BOY

C2

beninboy.no-ip.org:1605

Mutex

DC_MUTEX-EK2Y453

Attributes
  • gencode

    FEc5UT8Bh8Yx

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Executes dropped EXE 3 IoCs
  • UPX packed file 10 IoCs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 54 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7987bf9d806353760c55ac04660ca64e7b229ad0610881c5897de6200d042233.exe
    "C:\Users\Admin\AppData\Local\Temp\7987bf9d806353760c55ac04660ca64e7b229ad0610881c5897de6200d042233.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1724
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\bootres.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\bootres.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1280
      • C:\Users\Admin\AppData\Local\Temp\SharedReg.exe
        "C:\Users\Admin\AppData\Local\Temp\SharedReg.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1068
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1256
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\bootres.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\bootres.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      PID:1508

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\SharedReg.exe

    Filesize

    357KB

    MD5

    445b348512ff56a95b2912bec61dbdd1

    SHA1

    24eb3d44b8f192230cb8019ed0f606c6293751f8

    SHA256

    7987bf9d806353760c55ac04660ca64e7b229ad0610881c5897de6200d042233

    SHA512

    575170a0e4af69dbed6423d4f8258d9cd0b23dfb78b17cf5ee447b1c653229fd0cdd73271c64669dcf40c6ca6ccb0ce410f8acf6d83a20c0a42081ba0319a8e7

  • C:\Users\Admin\AppData\Local\Temp\SharedReg.exe

    Filesize

    357KB

    MD5

    445b348512ff56a95b2912bec61dbdd1

    SHA1

    24eb3d44b8f192230cb8019ed0f606c6293751f8

    SHA256

    7987bf9d806353760c55ac04660ca64e7b229ad0610881c5897de6200d042233

    SHA512

    575170a0e4af69dbed6423d4f8258d9cd0b23dfb78b17cf5ee447b1c653229fd0cdd73271c64669dcf40c6ca6ccb0ce410f8acf6d83a20c0a42081ba0319a8e7

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\bootres.exe

    Filesize

    7KB

    MD5

    2e74010faa0b3cc0ff1dcff309da03b3

    SHA1

    a85388fc3bc465b67e3a5b0c1f2621954b5c62f8

    SHA256

    71bad58cb9a8cc79ca7d5d97b9e68eafff79c65832ca94e3f010b475151f2b50

    SHA512

    18984e9a9d8548d28793f865be88f377fb7439a73af06b1f18ed9af54e1e3bda98600effde306c1bc8c9300d839c3e58694e39587e42aa10e4f0db45d5653f08

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\bootres.exe

    Filesize

    7KB

    MD5

    2e74010faa0b3cc0ff1dcff309da03b3

    SHA1

    a85388fc3bc465b67e3a5b0c1f2621954b5c62f8

    SHA256

    71bad58cb9a8cc79ca7d5d97b9e68eafff79c65832ca94e3f010b475151f2b50

    SHA512

    18984e9a9d8548d28793f865be88f377fb7439a73af06b1f18ed9af54e1e3bda98600effde306c1bc8c9300d839c3e58694e39587e42aa10e4f0db45d5653f08

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\bootres.exe

    Filesize

    7KB

    MD5

    2e74010faa0b3cc0ff1dcff309da03b3

    SHA1

    a85388fc3bc465b67e3a5b0c1f2621954b5c62f8

    SHA256

    71bad58cb9a8cc79ca7d5d97b9e68eafff79c65832ca94e3f010b475151f2b50

    SHA512

    18984e9a9d8548d28793f865be88f377fb7439a73af06b1f18ed9af54e1e3bda98600effde306c1bc8c9300d839c3e58694e39587e42aa10e4f0db45d5653f08

  • \Users\Admin\AppData\Local\Temp\SharedReg.exe

    Filesize

    357KB

    MD5

    445b348512ff56a95b2912bec61dbdd1

    SHA1

    24eb3d44b8f192230cb8019ed0f606c6293751f8

    SHA256

    7987bf9d806353760c55ac04660ca64e7b229ad0610881c5897de6200d042233

    SHA512

    575170a0e4af69dbed6423d4f8258d9cd0b23dfb78b17cf5ee447b1c653229fd0cdd73271c64669dcf40c6ca6ccb0ce410f8acf6d83a20c0a42081ba0319a8e7

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\bootres.exe

    Filesize

    7KB

    MD5

    2e74010faa0b3cc0ff1dcff309da03b3

    SHA1

    a85388fc3bc465b67e3a5b0c1f2621954b5c62f8

    SHA256

    71bad58cb9a8cc79ca7d5d97b9e68eafff79c65832ca94e3f010b475151f2b50

    SHA512

    18984e9a9d8548d28793f865be88f377fb7439a73af06b1f18ed9af54e1e3bda98600effde306c1bc8c9300d839c3e58694e39587e42aa10e4f0db45d5653f08

  • memory/1068-88-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1068-81-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1256-102-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1280-83-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1280-84-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1280-74-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1508-103-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1508-89-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1724-82-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1724-66-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1724-60-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1724-67-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1724-73-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1724-64-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1724-62-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1724-59-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1724-57-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1724-56-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1964-75-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1964-55-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1964-54-0x0000000076411000-0x0000000076413000-memory.dmp

    Filesize

    8KB