Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 20:44

General

  • Target

    ed29c3cbe6c9859f90ba8cd6482165e634c83eaf1035b8e208356261e887e41c.exe

  • Size

    1.5MB

  • MD5

    3b5990f8f76c2d055ec864c29ea33474

  • SHA1

    dd6e3d2b7f1863e57ca251d755ef088d516bd6be

  • SHA256

    ed29c3cbe6c9859f90ba8cd6482165e634c83eaf1035b8e208356261e887e41c

  • SHA512

    b6df346f3ebd91e08b0822ac3a29c6ed122a9d61451e8e6fd540b89890e4d760cf099057f2378e0911813cd93ed879f7109bf5a54126e3661defbe72f4a005a2

Malware Config

Extracted

Family

darkcomet

Botnet

Runescape

C2

mrsnickers03.no-ip.biz:340

Mutex

DC_MUTEX-6ZFK11A

Attributes
  • gencode

    uNwew4gojxtu

  • 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 6 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed29c3cbe6c9859f90ba8cd6482165e634c83eaf1035b8e208356261e887e41c.exe
    "C:\Users\Admin\AppData\Local\Temp\ed29c3cbe6c9859f90ba8cd6482165e634c83eaf1035b8e208356261e887e41c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1036
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\system32\svchost.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3120
    • C:\Users\Admin\AppData\Local\Temp\ed29c3cbe6c9859f90ba8cd6482165e634c83eaf1035b8e208356261e887e41c.exe
      "C:\Users\Admin\AppData\Local\Temp\ed29c3cbe6c9859f90ba8cd6482165e634c83eaf1035b8e208356261e887e41c.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:904
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LKXEN.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3944
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "java" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\IDM\ichader.exe" /f
          4⤵
          • Adds Run key to start application
          PID:3400
      • C:\Users\Admin\AppData\Roaming\IDM\ichader.exe
        "C:\Users\Admin\AppData\Roaming\IDM\ichader.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3448
        • C:\Windows\SysWOW64\svchost.exe
          "C:\Windows\system32\svchost.exe"
          4⤵
            PID:2604
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 92
              5⤵
              • Program crash
              PID:1108
          • C:\Users\Admin\AppData\Roaming\IDM\ichader.exe
            "C:\Users\Admin\AppData\Roaming\IDM\ichader.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:1232
          • C:\Users\Admin\AppData\Roaming\IDM\ichader.exe
            "C:\Users\Admin\AppData\Roaming\IDM\ichader.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:4068

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\LKXEN.bat
      MD5

      92353035f01403e26aa2ff51c3963238

      SHA1

      d13f167c73bfce23a2deab8ce7c4ce9f78759ff4

      SHA256

      2e72a8542f8f809bfb1e4adfb481c7c5e6dc00dda7970c74692ba8d83ea0a870

      SHA512

      74560e33477caae3c7bc13914e4ae3c6911bbcfe257b2833155c236a158db0aca17478beb9d97f648ff1ea566005260f511361771c74203195107f4e82cce7df

    • C:\Users\Admin\AppData\Roaming\IDM\ichader.exe
      MD5

      3dc9099c50a41a3d6ab72fd0a5f28909

      SHA1

      a7d9345fc1167841a8875124a8346186f4470fae

      SHA256

      07617a3f8e3a8365a6a6a21c64dc1eafaa3f7c6d11459f86d742479a4460c995

      SHA512

      e5621c2e44f5a907e70331e6964b286cdfa8ad66385bd5f7c2a9c93e80818f14996716adf08504d71ff7faa7c9dfc07e614a1884baad7c3638a1ae04791202ca

    • C:\Users\Admin\AppData\Roaming\IDM\ichader.exe
      MD5

      3dc9099c50a41a3d6ab72fd0a5f28909

      SHA1

      a7d9345fc1167841a8875124a8346186f4470fae

      SHA256

      07617a3f8e3a8365a6a6a21c64dc1eafaa3f7c6d11459f86d742479a4460c995

      SHA512

      e5621c2e44f5a907e70331e6964b286cdfa8ad66385bd5f7c2a9c93e80818f14996716adf08504d71ff7faa7c9dfc07e614a1884baad7c3638a1ae04791202ca

    • C:\Users\Admin\AppData\Roaming\IDM\ichader.exe
      MD5

      3dc9099c50a41a3d6ab72fd0a5f28909

      SHA1

      a7d9345fc1167841a8875124a8346186f4470fae

      SHA256

      07617a3f8e3a8365a6a6a21c64dc1eafaa3f7c6d11459f86d742479a4460c995

      SHA512

      e5621c2e44f5a907e70331e6964b286cdfa8ad66385bd5f7c2a9c93e80818f14996716adf08504d71ff7faa7c9dfc07e614a1884baad7c3638a1ae04791202ca

    • C:\Users\Admin\AppData\Roaming\IDM\ichader.exe
      MD5

      3dc9099c50a41a3d6ab72fd0a5f28909

      SHA1

      a7d9345fc1167841a8875124a8346186f4470fae

      SHA256

      07617a3f8e3a8365a6a6a21c64dc1eafaa3f7c6d11459f86d742479a4460c995

      SHA512

      e5621c2e44f5a907e70331e6964b286cdfa8ad66385bd5f7c2a9c93e80818f14996716adf08504d71ff7faa7c9dfc07e614a1884baad7c3638a1ae04791202ca

    • memory/904-9-0x00000000004085D0-mapping.dmp
    • memory/904-11-0x0000000000400000-0x000000000040B000-memory.dmp
      Filesize

      44KB

    • memory/904-10-0x0000000000400000-0x000000000040B000-memory.dmp
      Filesize

      44KB

    • memory/904-7-0x0000000000400000-0x000000000040B000-memory.dmp
      Filesize

      44KB

    • memory/1108-35-0x00000000047B0000-0x00000000047B1000-memory.dmp
      Filesize

      4KB

    • memory/1232-28-0x0000000072DA0000-0x0000000072E33000-memory.dmp
      Filesize

      588KB

    • memory/1232-26-0x00000000004085D0-mapping.dmp
    • memory/2604-24-0x000000000040B000-mapping.dmp
    • memory/3120-3-0x000000000040B000-mapping.dmp
    • memory/3120-5-0x0000000000400000-0x000000000040C000-memory.dmp
      Filesize

      48KB

    • memory/3120-4-0x0000000000400000-0x000000000040C000-memory.dmp
      Filesize

      48KB

    • memory/3120-2-0x0000000000400000-0x000000000040C000-memory.dmp
      Filesize

      48KB

    • memory/3400-16-0x0000000000000000-mapping.dmp
    • memory/3448-20-0x0000000072DA0000-0x0000000072E33000-memory.dmp
      Filesize

      588KB

    • memory/3448-17-0x0000000000000000-mapping.dmp
    • memory/3944-14-0x0000000000000000-mapping.dmp
    • memory/4068-29-0x0000000000400000-0x00000000004B7000-memory.dmp
      Filesize

      732KB

    • memory/4068-31-0x00000000004B5210-mapping.dmp
    • memory/4068-37-0x0000000000400000-0x00000000004B7000-memory.dmp
      Filesize

      732KB

    • memory/4068-34-0x0000000072DA0000-0x0000000072E33000-memory.dmp
      Filesize

      588KB

    • memory/4068-39-0x0000000000400000-0x00000000004B7000-memory.dmp
      Filesize

      732KB