Analysis

  • max time kernel
    144s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 08:12

General

  • Target

    JaffaCakes118_410aacb0b2a4039daf9a0620b8f5876d7d4c0aacbb986b3861423502d3c09eaf.exe

  • Size

    235KB

  • MD5

    a61674029b482827a782ecae5d07e051

  • SHA1

    dfa370a71cf415dccba8d6a841c37e93e4b7f81f

  • SHA256

    410aacb0b2a4039daf9a0620b8f5876d7d4c0aacbb986b3861423502d3c09eaf

  • SHA512

    d07695d45faf4cf7e7dfbe3ce26dc73bd74c6f73db4bcb9ae0f9f6290b0b9f4186f0a23a19a4453e32714f0b9411935ec5fbe91a0b60de6deb114c5dd0e0e410

  • SSDEEP

    3072:0Q1c0xv9yIQYEgVLKQdo4dr/RmSw0/UOUypQchJjurk3O4N1psmetvEZe9PvL9iv:0Q1c0PegZn6G/RJxhw+P1MeZ045Fw0

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_410aacb0b2a4039daf9a0620b8f5876d7d4c0aacbb986b3861423502d3c09eaf.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_410aacb0b2a4039daf9a0620b8f5876d7d4c0aacbb986b3861423502d3c09eaf.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ltpcizjd\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:588
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vhointgo.exe" C:\Windows\SysWOW64\ltpcizjd\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1256
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ltpcizjd binPath= "C:\Windows\SysWOW64\ltpcizjd\vhointgo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_410aacb0b2a4039daf9a0620b8f5876d7d4c0aacbb986b3861423502d3c09eaf.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2480
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ltpcizjd "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2660
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ltpcizjd
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2696
    • 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:2804
  • C:\Windows\SysWOW64\ltpcizjd\vhointgo.exe
    C:\Windows\SysWOW64\ltpcizjd\vhointgo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_410aacb0b2a4039daf9a0620b8f5876d7d4c0aacbb986b3861423502d3c09eaf.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2788
    • 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:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    12.5MB

    MD5

    de2802b61a05b6f237bb7c442359f438

    SHA1

    7ae9055df417d40ccca287a1f0f1e5ce7eec729d

    SHA256

    4006a0addb29e2468516f2f325c7eb50a0dc7d6b25bc242a6ba1032df5d4df92

    SHA512

    760c9abd89bac8519d9b9647a841b8aace85e5c52b16679e1bdc801db76aab0b4f218ff93108b1f86c0465726c305dd63f2416d356340ca55b0d954bf51e4514

  • memory/2764-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2764-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2764-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2764-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2764-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2788-17-0x0000000000400000-0x000000000086A000-memory.dmp

    Filesize

    4.4MB

  • memory/3024-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/3024-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp

    Filesize

    1024KB

  • memory/3024-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/3024-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/3024-8-0x0000000000400000-0x000000000086A000-memory.dmp

    Filesize

    4.4MB

  • memory/3024-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB