Analysis

  • max time kernel
    219s
  • max time network
    177s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 22:00

General

  • Target

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f.exe

  • Size

    408KB

  • MD5

    ba0010c7b17f06f067014eb32d17cdf6

  • SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

  • SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

  • SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • SSDEEP

    12288:jjxv2nebwy/Lzpc92s3mA0Imm1XSCT+rPK:jF+nuwy/e2s2A02RmK

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 12 IoCs

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

  • Loads dropped DLL 12 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f.exe
    "C:\Users\Admin\AppData\Local\Temp\879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:952
    • C:\Users\Admin\AppData\Local\Temp\879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f.exe
      "C:\Users\Admin\AppData\Local\Temp\879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f.exe"
      2⤵
      • Maps connected drives based on registry
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:472
      • C:\Users\Admin\AppData\Local\Temp\879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f.exe
        "C:\Users\Admin\AppData\Local\Temp\879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1560
        • C:\Users\Admin\Documents\MSDCSC\dataupdate.exe
          "C:\Users\Admin\Documents\MSDCSC\dataupdate.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1896
          • C:\Users\Admin\Documents\MSDCSC\dataupdate.exe
            "C:\Users\Admin\Documents\MSDCSC\dataupdate.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Maps connected drives based on registry
            • Suspicious use of SetThreadContext
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1860
            • C:\Users\Admin\Documents\MSDCSC\dataupdate.exe
              "C:\Users\Admin\Documents\MSDCSC\dataupdate.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of AdjustPrivilegeToken
              PID:1072

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • C:\Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • C:\Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • C:\Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • \Users\Admin\Documents\MSDCSC\dataupdate.exe
    Filesize

    408KB

    MD5

    ba0010c7b17f06f067014eb32d17cdf6

    SHA1

    ce1cf47d74c7b3aba3647ce3c5c5c7720644d223

    SHA256

    879746e2b812857a8f9101eedf2ed86a66fb00c30d98254d4caf8bffe793a60f

    SHA512

    ef44a06184b00e9270aa4ff24e93781a16722be6f62de3b78ca716adc424d408358ea9c8e13c0ca5f2e24788baa40995f5f55274579cbc974f2d784a6fc638bd

  • memory/472-78-0x0000000000400000-0x0000000000451000-memory.dmp
    Filesize

    324KB

  • memory/472-56-0x0000000000400000-0x0000000000451000-memory.dmp
    Filesize

    324KB

  • memory/472-63-0x0000000000401C60-mapping.dmp
  • memory/472-62-0x0000000000400000-0x0000000000451000-memory.dmp
    Filesize

    324KB

  • memory/472-59-0x0000000000400000-0x0000000000451000-memory.dmp
    Filesize

    324KB

  • memory/472-57-0x0000000000400000-0x0000000000451000-memory.dmp
    Filesize

    324KB

  • memory/1072-131-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1072-120-0x00000000004B2570-mapping.dmp
  • memory/1072-125-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1072-130-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1072-132-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1072-133-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1560-77-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1560-82-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1560-81-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1560-80-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1560-79-0x0000000074DA1000-0x0000000074DA3000-memory.dmp
    Filesize

    8KB

  • memory/1560-76-0x00000000004B2570-mapping.dmp
  • memory/1560-74-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1560-71-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1560-68-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1560-67-0x0000000000400000-0x00000000004B5000-memory.dmp
    Filesize

    724KB

  • memory/1860-101-0x0000000000401C60-mapping.dmp
  • memory/1860-123-0x0000000000400000-0x0000000000451000-memory.dmp
    Filesize

    324KB

  • memory/1896-84-0x0000000000000000-mapping.dmp