Analysis

  • max time kernel
    146s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 04:26

General

  • Target

    JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe

  • Size

    285KB

  • MD5

    e28cff69f519d0af754a3d940fc736b5

  • SHA1

    4ac728fda3417f9c4a342630958e35ce2857258a

  • SHA256

    bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370

  • SHA512

    b0e267c138776d239524e0b3636a402333ff1c043974a89d9958a2664fc7b002dc4e0b49d346904ccc7bf47d77aab78ea19a5cde56be8b012ba061767300e83f

  • SSDEEP

    3072:HpRniCVH4yVDjZYm1/A3Rxn9CCD39S20kehy/mpxK/DnNyBJrar0JmCF6Ev:JRiC3Dj51/ABxngIWpc/pAVZF6E

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_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\avppgro\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:756
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\glhzxam.exe" C:\Windows\SysWOW64\avppgro\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2028
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create avppgro binPath= "C:\Windows\SysWOW64\avppgro\glhzxam.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2620
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description avppgro "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2984
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start avppgro
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:592
    • 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:2780
  • C:\Windows\SysWOW64\avppgro\glhzxam.exe
    C:\Windows\SysWOW64\avppgro\glhzxam.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2476
    • 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:2804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    11.5MB

    MD5

    e12cc3aff5c45adfdb8f734386d0457b

    SHA1

    5770d08897e5a04ee321b83615bbc4f16b8ec462

    SHA256

    14bde5b8fde531406e7753a27ced84d1c9053c66e6ab8e9c12a773fd7fce3809

    SHA512

    1fd91c6e34eb5963955feb670ae00003341cda99a7a4fd869944d572f0c71048e450e70d04204733099c5f908929c1431e11d5b1010c496b1351a5413530f5cd

  • memory/2096-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2096-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2096-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2096-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2096-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

    Filesize

    39.6MB

  • memory/2096-1-0x0000000002C10000-0x0000000002D10000-memory.dmp

    Filesize

    1024KB

  • memory/2476-16-0x0000000000400000-0x0000000002B8F000-memory.dmp

    Filesize

    39.6MB

  • memory/2804-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2804-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2804-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2804-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2804-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB