Analysis

  • max time kernel
    148s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/01/2025, 22:02

General

  • Target

    2025-01-30_01ce0b7b263a7b88ed3337ec93dfbcda_mafia.exe

  • Size

    14.9MB

  • MD5

    01ce0b7b263a7b88ed3337ec93dfbcda

  • SHA1

    a2a8a7c25f8b7f07da55ef908564ed915f106e20

  • SHA256

    fa934669d49ba9f600ff6b424b2b52f5c6db653a8f5044e003939630ec21edaf

  • SHA512

    ce6130a1eb3e216ea52a0b5138e4cf616e97de0f498e60ee61880894c358f68dd304bde9fb7d6a9211b0be34c9fc5bfe9005726cda988bd59f9fbcad4d3653e8

  • SSDEEP

    3072:LLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/v:yOMdRQr7OB0ypmMXnl8XEPM3noSWOCu

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Tofsee family
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Program crash 2 IoCs
  • 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-30_01ce0b7b263a7b88ed3337ec93dfbcda_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-30_01ce0b7b263a7b88ed3337ec93dfbcda_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1532
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\opupcpwb\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4640
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dzrrodcq.exe" C:\Windows\SysWOW64\opupcpwb\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3600
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create opupcpwb binPath= "C:\Windows\SysWOW64\opupcpwb\dzrrodcq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_01ce0b7b263a7b88ed3337ec93dfbcda_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1736
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description opupcpwb "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4796
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start opupcpwb
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1484
    • 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:808
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1532 -s 1340
      2⤵
      • Program crash
      PID:2012
  • C:\Windows\SysWOW64\opupcpwb\dzrrodcq.exe
    C:\Windows\SysWOW64\opupcpwb\dzrrodcq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_01ce0b7b263a7b88ed3337ec93dfbcda_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:452
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:1564
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 556
      2⤵
      • Program crash
      PID:1452
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1532 -ip 1532
    1⤵
      PID:3916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 452 -ip 452
      1⤵
        PID:1172

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        10.7MB

        MD5

        ede0c377951c2147c1754b3d164e1589

        SHA1

        2cdaa5d37b952b90a43e890dd5159342e1fac819

        SHA256

        a46ee6539a28820654579eea5a8260fe64fb5b388317577982da2f079db492f3

        SHA512

        46d1ecd34887cbd731e9e7db7b0aa31ecaad262466b36d2e00ab95203627b65e5969e48cf10921b4d00fbf9ffa04abbe1ad78e872d77bc177819fc9b7d48acbc

      • memory/452-8-0x00007FFB7D810000-0x00007FFB7DA05000-memory.dmp

        Filesize

        2.0MB

      • memory/452-13-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/1532-1-0x00007FFB7D810000-0x00007FFB7DA05000-memory.dmp

        Filesize

        2.0MB

      • memory/1532-5-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/1532-6-0x00007FFB7D810000-0x00007FFB7DA05000-memory.dmp

        Filesize

        2.0MB

      • memory/1564-9-0x0000000000320000-0x0000000000335000-memory.dmp

        Filesize

        84KB

      • memory/1564-11-0x0000000000320000-0x0000000000335000-memory.dmp

        Filesize

        84KB

      • memory/1564-12-0x0000000000320000-0x0000000000335000-memory.dmp

        Filesize

        84KB