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Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2024, 02:45

General

  • Target

    JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe

  • Size

    160KB

  • MD5

    f8751659a78b753753c6cd06c414358e

  • SHA1

    d8b354927a734f92cd0d3972cbacef7e14ebd046

  • SHA256

    6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb

  • SHA512

    beac5506be29a2e9543250f81158cf9714c8a4d01690f3e3756bfa4ecfe7431327c7ff061cf4ea49aa8e16061c4d43d89cfa97f9bcd9843a1e798fd01dc99a6a

  • SSDEEP

    1536:Ra2VSyQsJgXWheKALv54FZ9YsnVGMkSflFUG43TgLjDo81l+UVwvdj6peviBTPmC:clNGUja68XU2EUicgiCSYxUAVGh0a

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_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2292
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eqlkoscv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1124
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bgfdtzix.exe" C:\Windows\SysWOW64\eqlkoscv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2552
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create eqlkoscv binPath= "C:\Windows\SysWOW64\eqlkoscv\bgfdtzix.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1812
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description eqlkoscv "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1044
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start eqlkoscv
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:892
    • 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:2968
  • C:\Windows\SysWOW64\eqlkoscv\bgfdtzix.exe
    C:\Windows\SysWOW64\eqlkoscv\bgfdtzix.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2748
    • 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:2924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.0MB

    MD5

    105fa6129f468a8c2392e11baa279d6a

    SHA1

    5cf4ef3b7f6b8ef9ff45793d1ef637dbe5f59936

    SHA256

    0dfa2e51a6b3c929f3a25355e9145477ee439ba77f4f311ddef200e2f3d78698

    SHA512

    da3ea84c44f212dcc69670e5cbab07a137bcc7df24404864866eac25ee90b486c16d46843bc0046ba92378e1e0ba21f809abd0020b9f9b5e580751dbc4509499

  • memory/2292-14-0x00000000002C0000-0x00000000002D3000-memory.dmp

    Filesize

    76KB

  • memory/2292-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2292-1-0x00000000002C0000-0x00000000002D3000-memory.dmp

    Filesize

    76KB

  • memory/2292-15-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2292-0-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

  • memory/2292-13-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

  • memory/2292-12-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2748-11-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2924-9-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2924-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2924-6-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2924-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2924-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB