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Analysis

  • max time kernel
    145s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250211-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/02/2025, 21:32

General

  • Target

    2025-02-12_f55badc54efeb617557e9c7e1e94ebdc_mafia.exe

  • Size

    12.9MB

  • MD5

    f55badc54efeb617557e9c7e1e94ebdc

  • SHA1

    5dbce8d054b7d75738b50b2c41efc1a02df90142

  • SHA256

    0d48a3872b6a054023dd23d1d7927f8861c67620422fa3ba0f5e58f006d8b428

  • SHA512

    b00d4363f88222bc0dbd0dc3ab06288486f3c974688b88f1d60604f383574cf1aae6e72bf0e8c3d045fce593dbd1f3647d671f7f5d195f6fcabf24e2b86edbe8

  • SSDEEP

    3072:6LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:jOMdRQr7OB0ypmMXnl8XEPM3noSWOCR

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
  • Downloads MZ/PE file 1 IoCs
  • 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 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 9 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 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-02-12_f55badc54efeb617557e9c7e1e94ebdc_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-12_f55badc54efeb617557e9c7e1e94ebdc_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4548
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\recjrwio\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4760
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zeojdpmo.exe" C:\Windows\SysWOW64\recjrwio\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3404
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create recjrwio binPath= "C:\Windows\SysWOW64\recjrwio\zeojdpmo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_f55badc54efeb617557e9c7e1e94ebdc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1132
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description recjrwio "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4892
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start recjrwio
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1904
    • 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:4272
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 644
      2⤵
      • Program crash
      PID:5052
  • C:\Windows\SysWOW64\recjrwio\zeojdpmo.exe
    C:\Windows\SysWOW64\recjrwio\zeojdpmo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_f55badc54efeb617557e9c7e1e94ebdc_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3772
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 520
      2⤵
      • Program crash
      PID:3596
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4548 -ip 4548
    1⤵
      PID:4684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2804 -ip 2804
      1⤵
        PID:3320
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODM0MTAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NTUzNjg2NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDIyODQzMTgxIi8-PC9hcHA-PC9yZXF1ZXN0Pg
        1⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        PID:5008
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{AA5C3946-C0D6-4EFF-8852-52A5DA4EB23F}\MicrosoftEdge_X64_133.0.3065.59.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{AA5C3946-C0D6-4EFF-8852-52A5DA4EB23F}\MicrosoftEdge_X64_133.0.3065.59.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
        1⤵
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:1596
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{AA5C3946-C0D6-4EFF-8852-52A5DA4EB23F}\EDGEMITMP_CC85D.tmp\setup.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{AA5C3946-C0D6-4EFF-8852-52A5DA4EB23F}\EDGEMITMP_CC85D.tmp\setup.exe" --install-archive="C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{AA5C3946-C0D6-4EFF-8852-52A5DA4EB23F}\MicrosoftEdge_X64_133.0.3065.59.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
          2⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2604
          • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{AA5C3946-C0D6-4EFF-8852-52A5DA4EB23F}\EDGEMITMP_CC85D.tmp\setup.exe
            "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{AA5C3946-C0D6-4EFF-8852-52A5DA4EB23F}\EDGEMITMP_CC85D.tmp\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Program Files\MsEdgeCrashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=133.0.6943.60 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{AA5C3946-C0D6-4EFF-8852-52A5DA4EB23F}\EDGEMITMP_CC85D.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.59 --initial-client-data=0x224,0x228,0x22c,0x200,0x230,0x7ff7c5d46a68,0x7ff7c5d46a74,0x7ff7c5d46a80
            3⤵
            • Executes dropped EXE
            • Drops file in Program Files directory
            PID:2644

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{AA5C3946-C0D6-4EFF-8852-52A5DA4EB23F}\EDGEMITMP_CC85D.tmp\setup.exe

        Filesize

        6.8MB

        MD5

        1b3e9c59f9c7a134ec630ada1eb76a39

        SHA1

        a7e831d392e99f3d37847dcc561dd2e017065439

        SHA256

        ce78ccfb0c9cdb06ea61116bc57e50690650b6b5cf37c1aebfb30c19458ee4ae

        SHA512

        c0e50410dc92d80ff7bc854907774fc551564e078a8d38ca6421f15cea50282c25efac4f357b52b066c4371f9b8d4900fa8122dd80ab06ecbd851c6e049f7a3e

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

        Filesize

        13.9MB

        MD5

        cde7faf6756e04858d2ae303cbe2a9ee

        SHA1

        f842737e3c06c15488442b69148d5e8261c36f48

        SHA256

        00e413dd17668375ade10ccf04a91e7d3f358a2a4c1df3729277b26693a3b4a1

        SHA512

        5a283936a1ed5ca48c4057ea5f3b60c28a9052d33cbd896538887bf5fe4421d6523dd9ff3fd1e42df656dee80353db6bf3bff29423cb03fc3bfed7ab7f4326e9

      • memory/2804-13-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2804-12-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2804-11-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2804-19-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/3772-14-0x0000000000C70000-0x0000000000C85000-memory.dmp

        Filesize

        84KB

      • memory/3772-16-0x0000000000C70000-0x0000000000C85000-memory.dmp

        Filesize

        84KB

      • memory/3772-17-0x0000000000C70000-0x0000000000C85000-memory.dmp

        Filesize

        84KB

      • memory/4548-4-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4548-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4548-8-0x0000000000490000-0x00000000004A3000-memory.dmp

        Filesize

        76KB

      • memory/4548-7-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4548-1-0x0000000000580000-0x0000000000680000-memory.dmp

        Filesize

        1024KB

      • memory/4548-2-0x0000000000490000-0x00000000004A3000-memory.dmp

        Filesize

        76KB