Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-12-2024 02:00

General

  • Target

    JaffaCakes118_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe

  • Size

    284KB

  • MD5

    7d00be4ec65386f955765f985e6f674c

  • SHA1

    3f0aa8c7fd4d8d40bec0399f98f3fa2db5f90a32

  • SHA256

    d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1

  • SHA512

    0fc70c2af038fb7922dffdd804d6234914459a2ba8a90eaf356232a80528e67b4c719f66d1b0664008308f0368fcb2e889aab7f9e27864b7c516c28f3acb5a1f

  • SSDEEP

    6144:WLiJZN+SN48a0qkz6LJ4PKNhEYUVP4Mu:nr+w48aB26NHXEYU

Malware Config

Extracted

Family

tofsee

C2

mubrikych.top

oxxyfix.xyz

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_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2664
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yqqyfnxn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2692
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\opptqzri.exe" C:\Windows\SysWOW64\yqqyfnxn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2540
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create yqqyfnxn binPath= "C:\Windows\SysWOW64\yqqyfnxn\opptqzri.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2568
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description yqqyfnxn "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2572
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start yqqyfnxn
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2544
    • 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:2712
  • C:\Windows\SysWOW64\yqqyfnxn\opptqzri.exe
    C:\Windows\SysWOW64\yqqyfnxn\opptqzri.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2604
    • 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:1472

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    12.6MB

    MD5

    14e08d0f3a957368cf932b4247ed0327

    SHA1

    57de72b77d4c4552451ceb3341566f3e6aeaa5f0

    SHA256

    0e365addc29298befb0f643b4ab451ec333e8285ab6996893b90e54e2f1e2ea6

    SHA512

    dbb01ebf0070c32e1b2393c20b230fa93cf0b48b2ba7ef0c88ee58768e1d05cd9e20b6980dc3ef7c43f780353f25909191e5f4b72352248b97c1d4266e4aa399

  • memory/1472-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/1472-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/1472-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1472-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/1472-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2604-17-0x0000000000400000-0x00000000004C9000-memory.dmp

    Filesize

    804KB

  • memory/2664-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2664-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2664-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2664-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2664-7-0x0000000000400000-0x00000000004C9000-memory.dmp

    Filesize

    804KB

  • memory/2664-1-0x0000000000620000-0x0000000000720000-memory.dmp

    Filesize

    1024KB