Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 21:03

General

  • Target

    2df59759ffa11fc1ddb0da4c7a2e959bf478465885ebd3bf30e4465676ec13c5.exe

  • Size

    520KB

  • MD5

    755bbf8807489fbac8d8438e55e26907

  • SHA1

    67b24ce8a8644a0524065032801a5a535f0a82a8

  • SHA256

    2df59759ffa11fc1ddb0da4c7a2e959bf478465885ebd3bf30e4465676ec13c5

  • SHA512

    4092637525939fdf5e8c4f567f5ea33f5104de3b7bec18a60ca0aad24513a7d27aa52bdebc64e9afd3aeff16ce94fa2ebc497ac4ac66442ba1b13538c0a213f8

  • SSDEEP

    6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbb:f9fC3hh29Ya77A90aFtDfT5IMbb

Malware Config

Extracted

Family

darkcomet

Botnet

PrivateEye

C2

ratblackshades.no-ip.biz:1604

Mutex

DC_MUTEX-ACC1R98

Attributes
  • gencode

    8GG5LVVGljSF

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 27 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2df59759ffa11fc1ddb0da4c7a2e959bf478465885ebd3bf30e4465676ec13c5.exe
    "C:\Users\Admin\AppData\Local\Temp\2df59759ffa11fc1ddb0da4c7a2e959bf478465885ebd3bf30e4465676ec13c5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2184
    • C:\Users\Admin\AppData\Local\Temp\2df59759ffa11fc1ddb0da4c7a2e959bf478465885ebd3bf30e4465676ec13c5.exe
      "C:\Users\Admin\AppData\Local\Temp\2df59759ffa11fc1ddb0da4c7a2e959bf478465885ebd3bf30e4465676ec13c5.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2156
      • C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2380
        • C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2744
          • C:\Windows\SysWOW64\ipconfig.exe
            "C:\Windows\system32\ipconfig.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            • Gathers network information
            • Suspicious use of WriteProcessMemory
            PID:2968
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\RUKDCJSI.bat" "
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2928
              • C:\Windows\SysWOW64\reg.exe
                REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinUpdate /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray" /f
                7⤵
                • Adds Run key to start application
                • System Location Discovery: System Language Discovery
                • Modifies registry key
                PID:1028
        • C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RUKDCJSI.bat

    Filesize

    151B

    MD5

    cac890d00365d07b9ca89def17cc3a36

    SHA1

    6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

    SHA256

    4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

    SHA512

    124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

  • \Users\Admin\AppData\Roaming\Microsoft\winupd.exe

    Filesize

    520KB

    MD5

    2e1bc8e30ee075ad2b9bdf944903dca0

    SHA1

    b0c8ba223b0794990a5619c0fd47c874ec0fb283

    SHA256

    2589359a3f401452f29a4f6e61ed8fd4f3c6d051a57fe0ca44b4b446c27886ef

    SHA512

    04182ec9c08bc0b514e618e508a076bb65a8f645c7bdf70d9d2507ce8f5e78d09dc91efceb210ac61071057a224f0f242a447168dc880b74743d9f15a4c0558f

  • memory/2156-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2156-8-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2156-6-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2156-4-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2156-67-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2156-19-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2184-18-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2184-17-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2184-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2184-20-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2184-3-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2380-64-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2380-36-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2380-48-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2744-82-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2756-75-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-54-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-52-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-50-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-62-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-74-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-73-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-76-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-78-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-77-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-63-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-98-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-83-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-84-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-58-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-86-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-87-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-88-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-89-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-90-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-91-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-92-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-93-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-94-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-95-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-96-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2756-97-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-71-0x0000000000100000-0x0000000000101000-memory.dmp

    Filesize

    4KB