Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/09/2024, 18:08

General

  • Target
    d6d825f2f2c75876fde0a34908862e02_JaffaCakes118.exe
  • Size 1.1MB
  • Sample240909-wq1castglc
  • SHA256 6f669947ca45a6020ca7405d33f20f4fbff77c6c772147481b81f298edc6a5f1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Guest16

C2
  • yesyoa.no-ip.biz:1337

Mutex
  • DC_MUTEX-LUX4R7L

Attributes
  • gencode

    WcMbkP7iz216

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • CyberGate, Rebhip

    CyberGate is a lightweight remote administration tool with a wide array of functionalities.

  • Darkcomet

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

  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 6 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 6 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3444
      • C:\Users\Admin\AppData\Local\Temp\d6d825f2f2c75876fde0a34908862e02_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\d6d825f2f2c75876fde0a34908862e02_JaffaCakes118.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2644
        • C:\Users\Admin\AppData\Local\Temp\d6d825f2f2c75876fde0a34908862e02_JaffaCakes118.exe
          C:\Users\Admin\AppData\Local\Temp\d6d825f2f2c75876fde0a34908862e02_JaffaCakes118.exe
          3⤵
          • Adds Run key to start application
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:8724
          • C:\Users\Admin\AppData\Local\Temp\d6d825f2f2c75876fde0a34908862e02_JaffaCakes118.exe
            C:\Users\Admin\AppData\Local\Temp\d6d825f2f2c75876fde0a34908862e02_JaffaCakes118.exe
            4⤵
            • Checks computer location settings
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:5328
            • C:\Users\Admin\AppData\Local\Temp\STEAMGAMEUNLOCKERV.5.2.EXE
              "C:\Users\Admin\AppData\Local\Temp\STEAMGAMEUNLOCKERV.5.2.EXE"
              5⤵
              • Adds policy Run key to start application
              • Boot or Logon Autostart Execution: Active Setup
              • Executes dropped EXE
              • Adds Run key to start application
              • Drops file in System32 directory
              • System Location Discovery: System Language Discovery
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of WriteProcessMemory
              PID:5844
              • C:\Windows\SysWOW64\explorer.exe
                explorer.exe
                6⤵
                • Boot or Logon Autostart Execution: Active Setup
                • System Location Discovery: System Language Discovery
                PID:6036
              • C:\Program Files\Internet Explorer\iexplore.exe
                "C:\Program Files\Internet Explorer\iexplore.exe"
                6⤵
                  PID:6576
                • C:\Users\Admin\AppData\Local\Temp\STEAMGAMEUNLOCKERV.5.2.EXE
                  "C:\Users\Admin\AppData\Local\Temp\STEAMGAMEUNLOCKERV.5.2.EXE"
                  6⤵
                  • Checks computer location settings
                  • Executes dropped EXE
                  • Drops file in System32 directory
                  • System Location Discovery: System Language Discovery
                  • Modifies registry class
                  • Suspicious behavior: GetForegroundWindowSpam
                  • Suspicious use of AdjustPrivilegeToken
                  PID:6648
                  • C:\Windows\SysWOW64\WinDir\Server.exe
                    "C:\Windows\system32\WinDir\Server.exe"
                    7⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    PID:7864
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 7864 -s 564
                      8⤵
                      • Program crash
                      PID:8068
              • C:\Users\Admin\AppData\Local\Temp\STEAMGAMEUNLOCKERV.5.2.EXE
                "C:\Users\Admin\AppData\Local\Temp\STEAMGAMEUNLOCKERV.5.2.EXE"
                5⤵
                • Boot or Logon Autostart Execution: Active Setup
                • Executes dropped EXE
                • Drops file in System32 directory
                • System Location Discovery: System Language Discovery
                PID:5988
                • C:\Program Files\Internet Explorer\iexplore.exe
                  "C:\Program Files\Internet Explorer\iexplore.exe"
                  6⤵
                    PID:6380
                  • C:\Users\Admin\AppData\Local\Temp\STEAMGAMEUNLOCKERV.5.2.EXE
                    "C:\Users\Admin\AppData\Local\Temp\STEAMGAMEUNLOCKERV.5.2.EXE"
                    6⤵
                    • Loads dropped DLL
                    • System Location Discovery: System Language Discovery
                    PID:6616
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 6616 -s 984
                      7⤵
                      • Program crash
                      PID:7996
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 6616 -ip 6616
          1⤵
            PID:7828
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 7864 -ip 7864
            1⤵
              PID:7960

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  STEAMGAMEUNLOCKERV.5.2.EXE

                  • Path C:\Users\Admin\AppData\Local\Temp\STEAMGAMEUNLOCKERV.5.2.EXE
                  • Size 276KB
                  • SHA256 80f31e0f725eeeb10e42a457f6cc7222c5dccd5757dac302f6d9b6214a866071
                  • MD5 SHA1 SHA512 SSDEEP

                  XX--XX--XX.txt

                  • Path C:\Users\Admin\AppData\Local\Temp\XX--XX--XX.txt
                  • Size 222KB
                  • SHA256 dda69d2292bf59c4b950b6c0a472b960055d691593867801e47d666481fe8b10
                  • MD5 SHA1 SHA512 SSDEEP

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 b9ff6287481d1d7c3535ce3d7dba04e4f6b927c748aa41f43fd59372b9025af9
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 3a4344860cd8ec34b12f2f4b4f232ff5ad583ebeeffe494c7693180776fa2a36
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 68a2f7490bfb7bf45097c575fc3428a3333f6f0549e41ce2374dc27b6b4598b0
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 e37d5c5aa7038d4346462bc55d880a1e68709954b70704e4fc46711033c96dc2
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 465ee903818a8c7263e0ca7bd85cfc4743debc4c39499c7c6081e17536d8b0f1
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 63f3bd1c26e0371e14cc9830e30b4d5b6a541d0c8a787164ad93e2e4acd297a4
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 e11f4fa1483e88dc01f23c28d19a1989af14a46cd3fea9163a2559f7d9886cc4
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 16c75924b7c545db9b3d54b1e62a810f772e6f84b0410229118d357aefba1a17
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 5e06841803a028db954130a934a612a5de76ddfd7b7ddb7391de254998c6a11a
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 b5f56aa13969e79fda8baae3b8febbc976441b7c8d424231680037b7b2c572d9
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 147167bf6a9797f504c52609c96f4bfd1ae500bd665a8b8b95a7af61b7e37107
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 ec566aebf825c491015e3e3fd1f46b51fbf0af71c415d1787c2b6507852157f6
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 9b15ecf24a63afade500f36269a62adf1d611cfec44b1dddaab05245a0466ee2
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 a42d897273a0df60be147d88718a4415ff7c62dce26b720a875d0b7d7efff09a
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 c909d68fb66466625c056011a856555503a3783097a72d69dbb9722d12751c66
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 d19e3fcb44947b255c3733b7ca53e101fe2d70e603ff7cda2c451d44743a5545
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 838b4e99a9652d0fe2fc20dd1473bfcfa080fce806b3431a2651c841d234d961
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 b816a04c3e035930760c361d3798c74644ffbc7c2d1c28d0d5ce763205375b2e
                  • MD5 SHA1 SHA512

                  XxX.xXx

                  • Path C:\Users\Admin\AppData\Local\Temp\XxX.xXx
                  • Size 8B
                  • SHA256 6b2988886e320c75d3c3110b9c2725bc6e62e989123870bd324068ef51dd23c0
                  • MD5 SHA1 SHA512

                  cglogs.dat

                  • Path C:\Users\Admin\AppData\Roaming\cglogs.dat
                  • Size 15B
                  • SHA256 4a8e75390856bf822f492f7f605ca0c21f1905172f6d3ef610162533c140507d
                  • MD5 SHA1 SHA512

                  memory/5328-2952-0x0000000000400000-0x00000000004FA000-memory.dmp

                  memory/5328-2951-0x0000000000400000-0x00000000004FA000-memory.dmp

                  memory/5328-3185-0x0000000000400000-0x00000000004FA000-memory.dmp

                  memory/5328-3183-0x0000000000400000-0x00000000004FA000-memory.dmp

                  memory/5328-2939-0x0000000000400000-0x00000000004FA000-memory.dmp

                  memory/5328-2938-0x0000000000400000-0x00000000004FA000-memory.dmp

                  memory/5328-2937-0x0000000000400000-0x00000000004FA000-memory.dmp

                  memory/5328-2936-0x0000000000400000-0x00000000004FA000-memory.dmp

                  memory/5328-2935-0x0000000000400000-0x00000000004FA000-memory.dmp

                  memory/5844-2957-0x0000000010410000-0x0000000010471000-memory.dmp

                  memory/5844-2959-0x0000000010480000-0x00000000104E1000-memory.dmp

                  memory/6036-2960-0x00000000003B0000-0x00000000003B1000-memory.dmp

                  memory/6036-2961-0x0000000000670000-0x0000000000671000-memory.dmp

                  memory/8724-2607-0x0000000000400000-0x0000000000453000-memory.dmp

                  memory/8724-2610-0x0000000000400000-0x0000000000453000-memory.dmp

                  memory/8724-2612-0x0000000000400000-0x0000000000453000-memory.dmp

                  memory/8724-2611-0x0000000000400000-0x0000000000453000-memory.dmp

                  memory/8724-2945-0x0000000000400000-0x0000000000453000-memory.dmp

                  memory/8724-2614-0x0000000000400000-0x0000000000453000-memory.dmp