Analysis

  • max time kernel
    149s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-11-2024 18:53

General

  • Target

    2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe

  • Size

    10.7MB

  • MD5

    5c3d80a6c3a15ff810dbb03994bc7d16

  • SHA1

    8639cca039a2b2eb900fd302874c940220f3614c

  • SHA256

    00dbd1a4b6930e88c337b07643a2bd07ca484abc06e9a9e58f2d4eb3efabc513

  • SHA512

    d5911c0f13a438e3e89b0856745e5d62c959f59746b64722e15e92b6747d8c6b2465f8754e09dc0d2775b6b731fa001efafd02b2885ed78a643a96e8d36b8d8e

  • SSDEEP

    49152:4Vdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGf:4Vdrl/9zG

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\2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hqikshrx\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:872
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mcibckaj.exe" C:\Windows\SysWOW64\hqikshrx\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2668
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create hqikshrx binPath= "C:\Windows\SysWOW64\hqikshrx\mcibckaj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4408
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description hqikshrx "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4236
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start hqikshrx
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1732
    • 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:408
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 1232
      2⤵
      • Program crash
      PID:936
  • C:\Windows\SysWOW64\hqikshrx\mcibckaj.exe
    C:\Windows\SysWOW64\hqikshrx\mcibckaj.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-10_5c3d80a6c3a15ff810dbb03994bc7d16_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:464
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2896
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 464 -s 512
      2⤵
      • Program crash
      PID:2528
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4472 -ip 4472
    1⤵
      PID:3180
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 464 -ip 464
      1⤵
        PID:1332

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        13.6MB

        MD5

        d4f44354271367d51769b7152af109ed

        SHA1

        809f8516bfd843feb5c9dab0d80eb44ede983621

        SHA256

        09f7b996e6a687442382ef1d9bd99d0431eea2931020357ea8d9849ceb41f60d

        SHA512

        7a6cca25e0f261334ce955b325e0b235a917de3ec5b593e4db752fb49567d65bc727259ce0622ad82c7163a061698446bedb4524fcd9211cbcd04c0a7828dbe0

      • memory/464-12-0x0000000000400000-0x0000000000518000-memory.dmp

        Filesize

        1.1MB

      • memory/464-11-0x0000000000400000-0x0000000000518000-memory.dmp

        Filesize

        1.1MB

      • memory/464-13-0x0000000000400000-0x0000000000518000-memory.dmp

        Filesize

        1.1MB

      • memory/464-18-0x0000000000400000-0x0000000000518000-memory.dmp

        Filesize

        1.1MB

      • memory/2896-14-0x0000000000580000-0x0000000000595000-memory.dmp

        Filesize

        84KB

      • memory/2896-16-0x0000000000580000-0x0000000000595000-memory.dmp

        Filesize

        84KB

      • memory/2896-17-0x0000000000580000-0x0000000000595000-memory.dmp

        Filesize

        84KB

      • memory/4472-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4472-1-0x0000000000790000-0x0000000000890000-memory.dmp

        Filesize

        1024KB

      • memory/4472-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4472-8-0x0000000002130000-0x0000000002143000-memory.dmp

        Filesize

        76KB

      • memory/4472-7-0x0000000000400000-0x0000000000518000-memory.dmp

        Filesize

        1.1MB

      • memory/4472-2-0x0000000002130000-0x0000000002143000-memory.dmp

        Filesize

        76KB