Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2024 09:43

General

  • Target

    JaffaCakes118_5c6056925d553e9289cc8af65829b87fb4c0827cde81fbb2942243a7355a7e89.exe

  • Size

    342KB

  • MD5

    1f65c044a1edce2c33c7030fb1a5d0ad

  • SHA1

    df89acc38275392f832d5c8416c1a502a58a7255

  • SHA256

    5c6056925d553e9289cc8af65829b87fb4c0827cde81fbb2942243a7355a7e89

  • SHA512

    5664d781c8da599f731ebfbbeb41907e96260f355f1c1f8a49614d97702cd066ff882aa744784696c930b73903b9eae7cda27002bd584448e8afa12399083d6e

  • SSDEEP

    6144:hWwdr+RRATin3UqjCsspkgF9o81ptDPNKHJDlx4BTj:hRcu2UCCssKgF9o81ptDPNKx4B

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_5c6056925d553e9289cc8af65829b87fb4c0827cde81fbb2942243a7355a7e89.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5c6056925d553e9289cc8af65829b87fb4c0827cde81fbb2942243a7355a7e89.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2828
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zxwapygv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1132
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zjobidcr.exe" C:\Windows\SysWOW64\zxwapygv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2872
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create zxwapygv binPath= "C:\Windows\SysWOW64\zxwapygv\zjobidcr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5c6056925d553e9289cc8af65829b87fb4c0827cde81fbb2942243a7355a7e89.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2724
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description zxwapygv "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2672
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start zxwapygv
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2796
    • 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:2304
  • C:\Windows\SysWOW64\zxwapygv\zjobidcr.exe
    C:\Windows\SysWOW64\zxwapygv\zjobidcr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5c6056925d553e9289cc8af65829b87fb4c0827cde81fbb2942243a7355a7e89.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2460
    • 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:632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.8MB

    MD5

    384523b9d9ea91c5f23bb070ccb69dbe

    SHA1

    a24fff89bf2c4d88e7fcef8efafb05ee36486949

    SHA256

    77d369f30712db8dc1992a02dc3beee9c1f6484d12bee28a1e43613715d42a7e

    SHA512

    d968c27f465e7982749fa3dca82982b861e91ee6743cfd54677abfa3a0befc90ae95de672ac2bd6b6b2c6a9c39433160f69feecee147bdfc0123dc936d869bb4

  • memory/632-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/632-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/632-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/632-12-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/632-19-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2460-18-0x0000000000400000-0x00000000008FA000-memory.dmp

    Filesize

    5.0MB

  • memory/2828-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2828-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2828-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2828-9-0x00000000009C0000-0x0000000000AC0000-memory.dmp

    Filesize

    1024KB

  • memory/2828-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2828-7-0x0000000000400000-0x00000000008FA000-memory.dmp

    Filesize

    5.0MB

  • memory/2828-1-0x00000000009C0000-0x0000000000AC0000-memory.dmp

    Filesize

    1024KB