Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    02-08-2024 03:25

General

  • Target

    82dc3548b3bdb2f5ac595a7b10a686b5_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    82dc3548b3bdb2f5ac595a7b10a686b5

  • SHA1

    2fd25bcfb3440d3d9b55e20a6f272def0644fc9e

  • SHA256

    a594312bae733f5b364d85bbb4116a31d5a40617b1e1487a4f1243cc6e15375d

  • SHA512

    82fe8bca701a04baaf577f70aea7e0fdbf13af4ddbf1422c0a75bba06aaf0e4a9f651e0dc7752326b9a792f53c648a119156467d9b3d3c8c7f1c4d296be10f6d

  • SSDEEP

    24576:pNh+giDWlMUKfb3QUi1Cqn21DEEZ6yh0u:pn+giEMr8UXsQQEJX

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

yesyoa.no-ip.biz:1337

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    MlumXEwFRnE1

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

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

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\82dc3548b3bdb2f5ac595a7b10a686b5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\82dc3548b3bdb2f5ac595a7b10a686b5_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2544
    • C:\Users\Admin\AppData\Local\Temp\82dc3548b3bdb2f5ac595a7b10a686b5_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\82dc3548b3bdb2f5ac595a7b10a686b5_JaffaCakes118.exe
      2⤵
      • 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:3396
      • C:\Users\Admin\AppData\Local\Temp\82dc3548b3bdb2f5ac595a7b10a686b5_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\82dc3548b3bdb2f5ac595a7b10a686b5_JaffaCakes118.exe
        3⤵
        • Modifies WinLogon for persistence
        • Loads dropped DLL
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2432
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2036
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3380
          • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
            C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
            5⤵
            • Executes dropped EXE
            • 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:3684
            • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
              C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
              6⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:4040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

    Filesize

    1.1MB

    MD5

    82dc3548b3bdb2f5ac595a7b10a686b5

    SHA1

    2fd25bcfb3440d3d9b55e20a6f272def0644fc9e

    SHA256

    a594312bae733f5b364d85bbb4116a31d5a40617b1e1487a4f1243cc6e15375d

    SHA512

    82fe8bca701a04baaf577f70aea7e0fdbf13af4ddbf1422c0a75bba06aaf0e4a9f651e0dc7752326b9a792f53c648a119156467d9b3d3c8c7f1c4d296be10f6d

  • memory/2036-1395-0x00000000773B0000-0x00000000774AA000-memory.dmp

    Filesize

    1000KB

  • memory/2036-1375-0x0000000000130000-0x0000000000131000-memory.dmp

    Filesize

    4KB

  • memory/2036-1359-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2432-1350-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2432-1355-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1391-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1352-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1353-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1349-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1348-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1346-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1356-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1341-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1354-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1345-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1347-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1342-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2432-1344-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3396-1295-0x0000000002810000-0x00000000028B6000-memory.dmp

    Filesize

    664KB

  • memory/3396-1257-0x0000000000240000-0x0000000000242000-memory.dmp

    Filesize

    8KB

  • memory/3396-1277-0x00000000002D0000-0x00000000002FD000-memory.dmp

    Filesize

    180KB

  • memory/3396-1308-0x00000000002D0000-0x00000000002E2000-memory.dmp

    Filesize

    72KB

  • memory/3396-1307-0x00000000002D0000-0x00000000002E2000-memory.dmp

    Filesize

    72KB

  • memory/3396-1325-0x0000000000240000-0x000000000024B000-memory.dmp

    Filesize

    44KB

  • memory/3396-1324-0x0000000000240000-0x000000000024B000-memory.dmp

    Filesize

    44KB

  • memory/3396-1321-0x0000000000460000-0x00000000004F9000-memory.dmp

    Filesize

    612KB

  • memory/3396-1337-0x0000000000240000-0x0000000000248000-memory.dmp

    Filesize

    32KB

  • memory/3396-1265-0x00000000002D0000-0x00000000002E8000-memory.dmp

    Filesize

    96KB

  • memory/3396-1266-0x0000000002810000-0x00000000028D9000-memory.dmp

    Filesize

    804KB

  • memory/3396-1267-0x0000000002810000-0x00000000028D9000-memory.dmp

    Filesize

    804KB

  • memory/3396-1268-0x00000000002D0000-0x00000000002EE000-memory.dmp

    Filesize

    120KB

  • memory/3396-1269-0x00000000002D0000-0x00000000002EE000-memory.dmp

    Filesize

    120KB

  • memory/3396-990-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-991-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-1336-0x0000000000380000-0x00000000003F1000-memory.dmp

    Filesize

    452KB

  • memory/3396-1335-0x0000000000380000-0x00000000003F1000-memory.dmp

    Filesize

    452KB

  • memory/3396-1320-0x0000000000380000-0x00000000003EB000-memory.dmp

    Filesize

    428KB

  • memory/3396-1319-0x0000000000380000-0x00000000003EB000-memory.dmp

    Filesize

    428KB

  • memory/3396-1306-0x0000000000380000-0x00000000003B1000-memory.dmp

    Filesize

    196KB

  • memory/3396-1300-0x0000000000380000-0x00000000003B1000-memory.dmp

    Filesize

    196KB

  • memory/3396-1298-0x0000000000240000-0x000000000024B000-memory.dmp

    Filesize

    44KB

  • memory/3396-1297-0x0000000000240000-0x000000000024B000-memory.dmp

    Filesize

    44KB

  • memory/3396-1296-0x0000000002810000-0x00000000028B6000-memory.dmp

    Filesize

    664KB

  • memory/3396-992-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-994-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-998-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-1294-0x00000000002D0000-0x00000000002F4000-memory.dmp

    Filesize

    144KB

  • memory/3396-1293-0x00000000002D0000-0x00000000002F4000-memory.dmp

    Filesize

    144KB

  • memory/3396-1276-0x00000000002D0000-0x00000000002FD000-memory.dmp

    Filesize

    180KB

  • memory/3396-1264-0x00000000002D0000-0x00000000002E8000-memory.dmp

    Filesize

    96KB

  • memory/3396-1263-0x00000000002D0000-0x00000000002E5000-memory.dmp

    Filesize

    84KB

  • memory/3396-1262-0x00000000002D0000-0x00000000002E5000-memory.dmp

    Filesize

    84KB

  • memory/3396-1261-0x0000000000240000-0x000000000024D000-memory.dmp

    Filesize

    52KB

  • memory/3396-1260-0x0000000000240000-0x000000000024D000-memory.dmp

    Filesize

    52KB

  • memory/3396-1259-0x0000000000240000-0x0000000000242000-memory.dmp

    Filesize

    8KB

  • memory/3396-1278-0x0000000000380000-0x00000000003CD000-memory.dmp

    Filesize

    308KB

  • memory/3396-997-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-1379-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-1378-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-987-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-975-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-979-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3396-971-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3684-2706-0x00000000026A0000-0x0000000002739000-memory.dmp

    Filesize

    612KB

  • memory/3684-2695-0x00000000026A0000-0x0000000002746000-memory.dmp

    Filesize

    664KB

  • memory/3684-2660-0x0000000001D60000-0x0000000001DAD000-memory.dmp

    Filesize

    308KB

  • memory/3684-2659-0x00000000002D0000-0x00000000002FD000-memory.dmp

    Filesize

    180KB

  • memory/3684-2658-0x00000000002D0000-0x00000000002FD000-memory.dmp

    Filesize

    180KB

  • memory/3684-2657-0x00000000002D0000-0x00000000002EE000-memory.dmp

    Filesize

    120KB

  • memory/3684-2656-0x00000000002D0000-0x00000000002EE000-memory.dmp

    Filesize

    120KB

  • memory/3684-2655-0x00000000026A0000-0x0000000002769000-memory.dmp

    Filesize

    804KB

  • memory/3684-2654-0x00000000026A0000-0x0000000002769000-memory.dmp

    Filesize

    804KB

  • memory/3684-2652-0x0000000000240000-0x0000000000258000-memory.dmp

    Filesize

    96KB

  • memory/3684-2653-0x0000000000240000-0x0000000000258000-memory.dmp

    Filesize

    96KB

  • memory/3684-2708-0x0000000000260000-0x000000000026B000-memory.dmp

    Filesize

    44KB

  • memory/3684-2743-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3684-2661-0x00000000002D0000-0x00000000002F4000-memory.dmp

    Filesize

    144KB

  • memory/3684-2702-0x00000000002D0000-0x00000000002E2000-memory.dmp

    Filesize

    72KB

  • memory/3684-2705-0x00000000026A0000-0x0000000002739000-memory.dmp

    Filesize

    612KB

  • memory/3684-2704-0x0000000001D60000-0x0000000001DCB000-memory.dmp

    Filesize

    428KB

  • memory/3684-2703-0x0000000001D60000-0x0000000001DCB000-memory.dmp

    Filesize

    428KB

  • memory/3684-2662-0x00000000002D0000-0x00000000002F4000-memory.dmp

    Filesize

    144KB

  • memory/3684-2701-0x00000000002D0000-0x00000000002E2000-memory.dmp

    Filesize

    72KB

  • memory/3684-2700-0x00000000003C0000-0x00000000003F1000-memory.dmp

    Filesize

    196KB

  • memory/3684-2699-0x00000000003C0000-0x00000000003F1000-memory.dmp

    Filesize

    196KB

  • memory/3684-2698-0x0000000000260000-0x000000000026B000-memory.dmp

    Filesize

    44KB

  • memory/3684-2697-0x0000000000260000-0x000000000026B000-memory.dmp

    Filesize

    44KB

  • memory/3684-2696-0x00000000026A0000-0x0000000002746000-memory.dmp

    Filesize

    664KB

  • memory/3684-2707-0x0000000000260000-0x000000000026B000-memory.dmp

    Filesize

    44KB

  • memory/3684-2715-0x0000000000260000-0x0000000000268000-memory.dmp

    Filesize

    32KB

  • memory/3684-2710-0x00000000024B0000-0x0000000002521000-memory.dmp

    Filesize

    452KB