Analysis

  • max time kernel
    144s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-02-2025 08:42

General

  • Target

    2025-02-04_1a821c79b1db287d1949eca62a75f5f4_mafia.exe

  • Size

    10.1MB

  • MD5

    1a821c79b1db287d1949eca62a75f5f4

  • SHA1

    d9f36db1c8661263c3c7353ab4a3827905b3febb

  • SHA256

    6b7dac036e7c0230178bd92e96534c68b38c47ab3fbf9d7137ba1836c0941443

  • SHA512

    ae45b3e9ee6b1731c4dd27e17781d9333fe2273b531628d4f602f39dbd14b19b99cdd53ab053da4a92f55138bb5ef89925167552ca4f1d23c2fa2884a54908bc

  • SSDEEP

    24576:0EfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ1:Rfot

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
  • 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\2025-02-04_1a821c79b1db287d1949eca62a75f5f4_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-04_1a821c79b1db287d1949eca62a75f5f4_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2900
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\augkflru\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2788
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ihvxlijb.exe" C:\Windows\SysWOW64\augkflru\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2656
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create augkflru binPath= "C:\Windows\SysWOW64\augkflru\ihvxlijb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-04_1a821c79b1db287d1949eca62a75f5f4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1808
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description augkflru "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2672
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start augkflru
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2196
    • 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:572
  • C:\Windows\SysWOW64\augkflru\ihvxlijb.exe
    C:\Windows\SysWOW64\augkflru\ihvxlijb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-04_1a821c79b1db287d1949eca62a75f5f4_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2188
    • 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:592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.7MB

    MD5

    3fced4fa372875bd70450aca06e5c442

    SHA1

    8d717a87001ecbdc694d3ad5d9830a60c671d681

    SHA256

    b95a6f3243d41c5215121b4be797fb82d70f1414248b17c695b2a2fbd9c1804f

    SHA512

    5f8bb078ac61e5b4c4e4d6ab400081914ed38543b2995fd49e1fc9ed5f993fd6405615a6aba0d95274c2b5bdc4388213120963e1af5421de66914f9d7673e82f

  • memory/592-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/592-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/592-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/592-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/592-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2188-12-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2900-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

    Filesize

    1024KB

  • memory/2900-3-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2900-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2900-15-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2900-16-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB