Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    28-08-2024 21:55

General

  • Target

    c7b736a9fca49450b679452260c86084_JaffaCakes118.exe

  • Size

    12.9MB

  • MD5

    c7b736a9fca49450b679452260c86084

  • SHA1

    65831ef95101644640229fd4872a69b738db4b19

  • SHA256

    ecb8395da2818b288bae02ac7827548df335aeefed102d6a9bda6d3738108c56

  • SHA512

    e987647067046fb2d4a3501c1ef4ddcc0d3533f1def8f38b52168cb4d431961cb131abd69a992fca0cb6998daf5ace33a7e279c93173617a79119f090d063e9a

  • SSDEEP

    196608:vJ2MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMH:v

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.

  • 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\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tpeuasrm\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2788
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\htauzfsa.exe" C:\Windows\SysWOW64\tpeuasrm\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2680
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create tpeuasrm binPath= "C:\Windows\SysWOW64\tpeuasrm\htauzfsa.exe /d\"C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2416
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description tpeuasrm "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2132
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start tpeuasrm
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2692
    • 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:2556
  • C:\Windows\SysWOW64\tpeuasrm\htauzfsa.exe
    C:\Windows\SysWOW64\tpeuasrm\htauzfsa.exe /d"C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2608
    • 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:2196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.3MB

    MD5

    edee6e2a79527a530c616408e33a6d8b

    SHA1

    556b0ce5c8459606a9a212afbc32719c5f8c3f56

    SHA256

    19bc0be673a0c6daae97cf9c34a34d6538d66098b925a60fbfb85a78a763f399

    SHA512

    04e6120815be26dead4a9a4a8a17dec0b1cb783992a8bf5454aec48c3bc5d9660debde72ab02ee2c0b59a72e497e14754b007cefa7d862157aa7cf2478ae132d

  • memory/2196-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2196-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2196-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2196-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2196-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2212-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2212-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2212-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2212-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2212-8-0x0000000000400000-0x0000000000871000-memory.dmp

    Filesize

    4.4MB

  • memory/2212-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

    Filesize

    1024KB

  • memory/2608-17-0x0000000000400000-0x0000000000871000-memory.dmp

    Filesize

    4.4MB