Analysis

  • max time kernel
    146s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2024 12:26

General

  • Target

    9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe

  • Size

    13.1MB

  • MD5

    9b769cda1ae8ae818ab31597bb6b7bed

  • SHA1

    63e0402438e10592e7f110ded216cd00cd6f96fb

  • SHA256

    e696fdd3d19e5c9ebcd5f5435ef8819fb793d6a97d16108ca2e9f0fd5433ac8f

  • SHA512

    0c84f43118c8bb3c37bfa8b2f3c8c915bafa58f0c258dc7e12886a66f8ad125c839a98ead5d3eeee3520c61a88e24658efce0a8e0d9bee46ed95bbb5677fdf7f

  • SSDEEP

    196608:3RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRB:

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.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\9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:392
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vjzhsckp\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2804
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ghjkehcu.exe" C:\Windows\SysWOW64\vjzhsckp\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1044
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create vjzhsckp binPath= "C:\Windows\SysWOW64\vjzhsckp\ghjkehcu.exe /d\"C:\Users\Admin\AppData\Local\Temp\9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2920
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description vjzhsckp "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2456
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start vjzhsckp
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2572
    • 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:2976
  • C:\Windows\SysWOW64\vjzhsckp\ghjkehcu.exe
    C:\Windows\SysWOW64\vjzhsckp\ghjkehcu.exe /d"C:\Users\Admin\AppData\Local\Temp\9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1720
    • 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:2596

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.5MB

    MD5

    bf861788d811506568e6a2a9c3b86d27

    SHA1

    732b9dbe099a45bdd1549551445353d03397a4b6

    SHA256

    441fdd28fd042bd4a0781a22ad09f666ddcf3f49e14440733c20257b3dc7a1db

    SHA512

    72aaae98509d3540a772df2138774ee4283fc1a2c6541d8f60e8cda8108e54dcf941082e03f00c4c01ef1beaadb1e809c90924e30a4dda45de25afa942b4bc56

  • memory/392-9-0x00000000009D0000-0x0000000000AD0000-memory.dmp

    Filesize

    1024KB

  • memory/392-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/392-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/392-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/392-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/392-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp

    Filesize

    1024KB

  • memory/392-7-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/1720-18-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/2596-12-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2596-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2596-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2596-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2596-19-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB