Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-12-2024 17:22

General

  • Target

    JaffaCakes118_c1104189cca07cf7cacd699a5f1bf9389162586e6c65c1e9a52f9c3a1676021f.exe

  • Size

    164KB

  • MD5

    587a7cf775cd8a74be2baccb695e31d4

  • SHA1

    010568b6ae0c2ed0d9ff092be2520b3b524a5455

  • SHA256

    c1104189cca07cf7cacd699a5f1bf9389162586e6c65c1e9a52f9c3a1676021f

  • SHA512

    9975b441d733378a5f4be3b1d24e422a17ccfe5a5c5af5c2724676038aaffe465fe69323131e0c460bad9a1fcc18fa1154ff6bc3fd641a9aa56be40555952467

  • SSDEEP

    3072:YRerFrOZe6EAoFOTSRKAIIOVFR28YNeP4mgFiByKEh2:Txrqe6OFiSkvIOVFQfmiiBIQ

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Tofsee family
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • 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.

  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c1104189cca07cf7cacd699a5f1bf9389162586e6c65c1e9a52f9c3a1676021f.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c1104189cca07cf7cacd699a5f1bf9389162586e6c65c1e9a52f9c3a1676021f.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:924
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xyiggqfr\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4968
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\soddipvm.exe" C:\Windows\SysWOW64\xyiggqfr\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3196
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create xyiggqfr binPath= "C:\Windows\SysWOW64\xyiggqfr\soddipvm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c1104189cca07cf7cacd699a5f1bf9389162586e6c65c1e9a52f9c3a1676021f.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:552
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description xyiggqfr "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3372
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start xyiggqfr
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4584
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:1924
  • C:\Windows\SysWOW64\xyiggqfr\soddipvm.exe
    C:\Windows\SysWOW64\xyiggqfr\soddipvm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c1104189cca07cf7cacd699a5f1bf9389162586e6c65c1e9a52f9c3a1676021f.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3460
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • System Location Discovery: System Language Discovery
      PID:3320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\soddipvm.exe

    Filesize

    14.1MB

    MD5

    dd8ab4f67158c0248416de1ec29887de

    SHA1

    113f865e068fa9dc83b8261380e9d7dd1aea8ea4

    SHA256

    6c4e0b48959fefa6ef22d36efd8fc22019972edcf3f7470f864b482ed6ae1ead

    SHA512

    1d29504e42c1acee2b891d1e76423aa085ef800d7d640941854448b8a6ff9bdaf01b97d3e8998867c4bb3d10561201e9271f370b1bcf7b668b46e29426b76760

  • memory/924-13-0x0000000002190000-0x00000000021A3000-memory.dmp

    Filesize

    76KB

  • memory/924-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/924-1-0x0000000002190000-0x00000000021A3000-memory.dmp

    Filesize

    76KB

  • memory/924-12-0x0000000002180000-0x000000000218D000-memory.dmp

    Filesize

    52KB

  • memory/924-15-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/924-16-0x0000000000400000-0x0000000000431000-memory.dmp

    Filesize

    196KB

  • memory/924-0-0x0000000002180000-0x000000000218D000-memory.dmp

    Filesize

    52KB

  • memory/3320-21-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

    Filesize

    84KB

  • memory/3320-8-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

    Filesize

    84KB

  • memory/3320-11-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

    Filesize

    84KB

  • memory/3320-19-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

    Filesize

    84KB

  • memory/3460-6-0x0000000000400000-0x0000000000431000-memory.dmp

    Filesize

    196KB

  • memory/3460-17-0x0000000000400000-0x0000000000431000-memory.dmp

    Filesize

    196KB

  • memory/3460-7-0x0000000000400000-0x0000000000431000-memory.dmp

    Filesize

    196KB