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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
    23/12/2024, 14:35

General

  • Target

    JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe

  • Size

    238KB

  • MD5

    408c1945565f2750805d4794738e9ac6

  • SHA1

    5337152dea98cc8689642d06b1dd401a36576dee

  • SHA256

    8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861

  • SHA512

    2ca65d40c0984003654c6f49f1258ac584b742932e2b5935d0d197d8771ea6e75a12aafc9983c9dee2ba318786be9d7def38690ee7bd2b0a875e61b601afd613

  • SSDEEP

    6144:p3ZQq23DLJtr0Cl20X3pZxbkToSdx5pgG5H:BZWJtrPlVZxoESJn

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_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ghdgczfu\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2260
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dpbjjujr.exe" C:\Windows\SysWOW64\ghdgczfu\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1444
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ghdgczfu binPath= "C:\Windows\SysWOW64\ghdgczfu\dpbjjujr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2192
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ghdgczfu "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2732
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ghdgczfu
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2836
    • 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:2752
  • C:\Windows\SysWOW64\ghdgczfu\dpbjjujr.exe
    C:\Windows\SysWOW64\ghdgczfu\dpbjjujr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2780
    • 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:2888

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.2MB

    MD5

    a214b02d84c10e4d2e63c9ec6d469836

    SHA1

    03619fd967f6f1f30871de5467ce2d7734ac3ac7

    SHA256

    c7d64efde1c29090a5b4ddd47bfe0ce029232eacd24c877180a26aebb547e3c2

    SHA512

    89f6e65fbb9c90b0fcc42b017df05f3c883ffa69d95640069f6e9e38e345cd1c237ae29c57c74fae75052b1b5a9505c68e1ee2e8eb384fc9772511a03610d2e8

  • memory/2160-8-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2160-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2160-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2160-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2160-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2160-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

    Filesize

    1024KB

  • memory/2780-17-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2888-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2888-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2888-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2888-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2888-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB