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Analysis

  • max time kernel
    149s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2025, 12:42

General

  • Target

    2025-02-03_cf0474653b4fcbf1cf720c7f887b46e8_mafia.exe

  • Size

    14.9MB

  • MD5

    cf0474653b4fcbf1cf720c7f887b46e8

  • SHA1

    0436ee45e37e79c4224ca67303c7b254e7a4f76a

  • SHA256

    a4d37d051b8aa882b01b379fa673c2eaf5ebef762f3463b375c4d600340805fa

  • SHA512

    cd51f5e47fb8f1316a5ebbf5ad5dca2181800f4fdca999b4e37a196307d6574c56737955ee59ad19361988832982b8b47d581366acbfd4dc177580901ed56f59

  • SSDEEP

    3072:LLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/B:yOMdRQr7OB0ypmMXnl8XEPM3noSWOCa

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\2025-02-03_cf0474653b4fcbf1cf720c7f887b46e8_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-03_cf0474653b4fcbf1cf720c7f887b46e8_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5108
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qcuosxmm\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5040
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ducakfma.exe" C:\Windows\SysWOW64\qcuosxmm\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2632
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create qcuosxmm binPath= "C:\Windows\SysWOW64\qcuosxmm\ducakfma.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_cf0474653b4fcbf1cf720c7f887b46e8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2456
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description qcuosxmm "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4124
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start qcuosxmm
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4996
    • 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:976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 1372
      2⤵
      • Program crash
      PID:632
  • C:\Windows\SysWOW64\qcuosxmm\ducakfma.exe
    C:\Windows\SysWOW64\qcuosxmm\ducakfma.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_cf0474653b4fcbf1cf720c7f887b46e8_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 532
      2⤵
      • Program crash
      PID:1440
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5108 -ip 5108
    1⤵
      PID:1732
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2420 -ip 2420
      1⤵
        PID:3372

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        14.9MB

        MD5

        b6c4b7d510df5fadfb81ebb1348f930f

        SHA1

        38db2673c1136571266d4c399205660bc13f5c9d

        SHA256

        593365bbf1e3ac18c9b361d89c8d80471e90bc0606ccd0a02342b56b0129aee3

        SHA512

        508ab1a9f384d77c9d80703e9966cc08e353ace669f84f72c74e49942a8bef94221f835d3ed04ebbf60930d68b3a8d7a4c523e1a44fd7bc391e86b15cadc703b

      • memory/2420-13-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2420-11-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2420-12-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2420-19-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/3444-14-0x0000000001100000-0x0000000001115000-memory.dmp

        Filesize

        84KB

      • memory/3444-16-0x0000000001100000-0x0000000001115000-memory.dmp

        Filesize

        84KB

      • memory/3444-17-0x0000000001100000-0x0000000001115000-memory.dmp

        Filesize

        84KB

      • memory/5108-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/5108-2-0x0000000000490000-0x00000000004A3000-memory.dmp

        Filesize

        76KB

      • memory/5108-7-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/5108-8-0x0000000000490000-0x00000000004A3000-memory.dmp

        Filesize

        76KB

      • memory/5108-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/5108-1-0x0000000000700000-0x0000000000800000-memory.dmp

        Filesize

        1024KB