Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    29/12/2024, 22:25

General

  • Target

    JaffaCakes118_19bcbeb0b9f81c775fa96cddac76e5d3a55f65ed580ea93d452e656f3d1231e2.exe

  • Size

    277KB

  • MD5

    a8301ded770dca5b37d8d125f8bbbb8b

  • SHA1

    a6a90c8a0132c172cb384e803ea735de365b3859

  • SHA256

    19bcbeb0b9f81c775fa96cddac76e5d3a55f65ed580ea93d452e656f3d1231e2

  • SHA512

    c5a9d5a8957155d8bb006a6e75695bc8ed4d775bf7797869067d8c81192fe87003c122fde8f6d9031f2eeae852c996914ed0d0e26efbcc83ffad96e0c1ab054e

  • SSDEEP

    3072:A/0FXt7yv4zdOPOPtGTRZEYWigNQsKZRVy8U/qed+pHMGrYv5QkA9UyYkDUa+1pB:AH+YP6otZai9Xy8qLiHMGr609UyYfXt

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_19bcbeb0b9f81c775fa96cddac76e5d3a55f65ed580ea93d452e656f3d1231e2.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19bcbeb0b9f81c775fa96cddac76e5d3a55f65ed580ea93d452e656f3d1231e2.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wzemapyn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2080
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wbxpnqc.exe" C:\Windows\SysWOW64\wzemapyn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3044
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create wzemapyn binPath= "C:\Windows\SysWOW64\wzemapyn\wbxpnqc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19bcbeb0b9f81c775fa96cddac76e5d3a55f65ed580ea93d452e656f3d1231e2.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2600
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description wzemapyn "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2956
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start wzemapyn
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:584
    • 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:2836
  • C:\Windows\SysWOW64\wzemapyn\wbxpnqc.exe
    C:\Windows\SysWOW64\wzemapyn\wbxpnqc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19bcbeb0b9f81c775fa96cddac76e5d3a55f65ed580ea93d452e656f3d1231e2.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2924
    • 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:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.2MB

    MD5

    3c638db491d441b160b680369336cee7

    SHA1

    b19ae6819e90a976cdbf7c8be7177d9b8f584a2e

    SHA256

    1da157ae692efd22c8dc3e763fa534e9fdd71e13b99608f7bbec6ee678e894af

    SHA512

    cae7c2e59aea140e7df8d1bf7e623cbc9f5a40dc9e16077bf40ccd8020abe767912cf6b70d6d2b5d71081eb55d8b39da08596412636f382fabd4fa02ac71b27c

  • memory/2240-8-0x0000000000400000-0x0000000002D9C000-memory.dmp

    Filesize

    41.6MB

  • memory/2240-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2240-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2240-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2240-9-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2240-1-0x0000000002E60000-0x0000000002F60000-memory.dmp

    Filesize

    1024KB

  • memory/2924-16-0x0000000000400000-0x0000000002D9C000-memory.dmp

    Filesize

    41.6MB

  • memory/2936-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2936-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2936-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2936-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2936-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB