Analysis

  • max time kernel
    145s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2024 07:18

General

  • Target

    JaffaCakes118_ffe28723faf38f895cca323c218bb4a5d3c05b9a08634c366082e6d87645cf85.exe

  • Size

    229KB

  • MD5

    3cceaf2a10d926f108af3e93e95b8b04

  • SHA1

    272ff77b5510a9cd682f02fc7f6b823bfec081fc

  • SHA256

    ffe28723faf38f895cca323c218bb4a5d3c05b9a08634c366082e6d87645cf85

  • SHA512

    06e6ce07d60ad94fd7d58ff3367ae684e5c5e483c1f65f2c1fdc900f93d62f33b84efe0d117919befa1044256ef2587253543282ed14464c69c001fa96395b85

  • SSDEEP

    3072:9F579c+MXLfd78Xr6yVAhikTUZTO0SXM7yn171sUSizP0aRHJDMV3zrulYn05Fmu:9F55c3V78XrfALTURgPSizca1JsId

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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_ffe28723faf38f895cca323c218bb4a5d3c05b9a08634c366082e6d87645cf85.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ffe28723faf38f895cca323c218bb4a5d3c05b9a08634c366082e6d87645cf85.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1152
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cgtntme\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2764
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ubecddth.exe" C:\Windows\SysWOW64\cgtntme\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2792
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create cgtntme binPath= "C:\Windows\SysWOW64\cgtntme\ubecddth.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ffe28723faf38f895cca323c218bb4a5d3c05b9a08634c366082e6d87645cf85.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2728
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description cgtntme "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2592
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start cgtntme
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2884
    • 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:2600
  • C:\Windows\SysWOW64\cgtntme\ubecddth.exe
    C:\Windows\SysWOW64\cgtntme\ubecddth.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ffe28723faf38f895cca323c218bb4a5d3c05b9a08634c366082e6d87645cf85.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2572
    • 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:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.3MB

    MD5

    7824964376cbd8bb7c40f8178b120bc8

    SHA1

    0119f51f66e8c5a94e20f6458427c4a1f5303878

    SHA256

    e2c04055f75395de78a2c1c9b98104f9e691088043e287f063093a93745252fd

    SHA512

    53bf1df628c897f9ffd98c647f24baf34ccc37f47c5efebf110f5bc9fdcf40c3e4542066735616c849a2d983a39b3d37b6e0ea8e80ffafdd8b1138e06221907e

  • memory/1152-8-0x0000000000400000-0x0000000000869000-memory.dmp

    Filesize

    4.4MB

  • memory/1152-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1152-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/1152-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1152-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/1152-1-0x0000000000930000-0x0000000000A30000-memory.dmp

    Filesize

    1024KB

  • memory/2572-17-0x0000000000400000-0x0000000000869000-memory.dmp

    Filesize

    4.4MB

  • memory/2612-11-0x0000000000090000-0x00000000000A5000-memory.dmp

    Filesize

    84KB

  • memory/2612-14-0x0000000000090000-0x00000000000A5000-memory.dmp

    Filesize

    84KB

  • memory/2612-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2612-16-0x0000000000090000-0x00000000000A5000-memory.dmp

    Filesize

    84KB

  • memory/2612-18-0x0000000000090000-0x00000000000A5000-memory.dmp

    Filesize

    84KB