Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2025 05:19

General

  • Target

    932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe

  • Size

    334KB

  • MD5

    db961867695b25febb937fcf6b3595eb

  • SHA1

    583659154883a51674224ffec8cfb9df68fac90b

  • SHA256

    932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0

  • SHA512

    f19079147170f3615bd67724b1a179a2c0eb259ca9343990573bdf54226548f611136228bc989d793c91a16bc637665663869037a24277cb361c7087bcafbf40

  • SSDEEP

    6144:PrqoF5nyBcVI7ivrWNjDyYegF90xu2VqUGN1k6ELv1rXV:VnPprWhDyY7F9Mu2Vqfwr

Malware Config

Extracted

Family

tofsee

C2

mubrikych.top

oxxyfix.xyz

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\932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe
    "C:\Users\Admin\AppData\Local\Temp\932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jgepurvg\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2644
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dzmygjkr.exe" C:\Windows\SysWOW64\jgepurvg\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2752
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create jgepurvg binPath= "C:\Windows\SysWOW64\jgepurvg\dzmygjkr.exe /d\"C:\Users\Admin\AppData\Local\Temp\932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2672
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description jgepurvg "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3044
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start jgepurvg
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2244
    • 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:572
  • C:\Windows\SysWOW64\jgepurvg\dzmygjkr.exe
    C:\Windows\SysWOW64\jgepurvg\dzmygjkr.exe /d"C:\Users\Admin\AppData\Local\Temp\932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:264
    • 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:2920

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    12.4MB

    MD5

    17f098b65676b39b52b4d905e1daf7d7

    SHA1

    0ae3792ae02d9a3d8bd1c226870b955f19f816af

    SHA256

    2d24e0e90d080d627e0d29dff33f7fcdd93532ee9403d45a29e9bc80dacd95ee

    SHA512

    4c5242c7b4fe656e2f4dd99d9e2ec4b769f11107710e3cb9ef9767a650486768ff49ee3888c2e7052b6445934688f7e2677d067d27adc4ba509e0a1d027c5477

  • memory/264-15-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/2920-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2920-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2920-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2920-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2920-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2920-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2964-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2964-7-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/2964-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2964-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2964-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

    Filesize

    1024KB

  • memory/2964-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB