Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 02:23

General

  • Target

    JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe

  • Size

    238KB

  • MD5

    f86417c2fd815b961531de373e216cb4

  • SHA1

    c469621501cf0b9f1dda7a6fa94ecbf715c32d92

  • SHA256

    fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665

  • SHA512

    9a2e75bb0f18989552226483952ce036796e08f9bb591e7c6c72cefdd638d4dc6fad1036be767cc7cc5da2828880e483a3e39a30f6210290e5d9148793e2b6de

  • SSDEEP

    6144:3SgA7fIyTlO/L/xYZen+7ITsq7igavwVf:3XA7fI2lO/L/xy79

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
  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • 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 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1584
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bpimjamp\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1888
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vojvzoz.exe" C:\Windows\SysWOW64\bpimjamp\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2576
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create bpimjamp binPath= "C:\Windows\SysWOW64\bpimjamp\vojvzoz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2392
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description bpimjamp "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2132
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start bpimjamp
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2252
    • 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:2860
  • C:\Windows\SysWOW64\bpimjamp\vojvzoz.exe
    C:\Windows\SysWOW64\bpimjamp\vojvzoz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.2MB

    MD5

    352c898303fb58cb9a18587b06f8d376

    SHA1

    b41b56c728c737da2f5d3ea15c105bee2ec2eac5

    SHA256

    f1e764c463eee3c01188757259edf72b507f4b5a0d5daf8e85a5a8fae91f9e22

    SHA512

    c58def3ffa87aa75a8f47b61689d6bfc869811ec9ebb920627d570d645c9642cac167c71bc26d235510824c854c108bb4e2ad780dc2564573ecc57e764fe001b

  • memory/1584-7-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

  • memory/1584-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1584-1-0x0000000000250000-0x0000000000263000-memory.dmp

    Filesize

    76KB

  • memory/1584-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1584-8-0x0000000000250000-0x0000000000263000-memory.dmp

    Filesize

    76KB

  • memory/1584-0-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

  • memory/1584-6-0x0000000000400000-0x0000000000445000-memory.dmp

    Filesize

    276KB

  • memory/2768-10-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2768-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2768-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2768-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2768-13-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2804-16-0x0000000000400000-0x0000000000445000-memory.dmp

    Filesize

    276KB