Analysis

  • max time kernel
    145s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    31-01-2025 06:18

General

  • Target

    2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe

  • Size

    11.9MB

  • MD5

    d2aa8a89bed9a2fce489567b59d15112

  • SHA1

    51040b5011828b7a3f995af3e7bff3aa954be3fa

  • SHA256

    8090e1afcab6554937edd0bc8c587ed5449e5954f3287e089b948eef719e3f49

  • SHA512

    f9a4e9f60c3afbca32e4dc4ea7f34b02aea23d74e8eb2bb9e47947eb45c1f91e5c3caf3b83eaadc82d7126637c5b580149490e65cc67839a6d2d79ff677e5c08

  • SSDEEP

    49152:OqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPS:OqtYc3z

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\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vmkwelf\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2484
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tkgnedhl.exe" C:\Windows\SysWOW64\vmkwelf\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2952
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create vmkwelf binPath= "C:\Windows\SysWOW64\vmkwelf\tkgnedhl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2888
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description vmkwelf "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2000
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start vmkwelf
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2632
    • 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:2796
  • C:\Windows\SysWOW64\vmkwelf\tkgnedhl.exe
    C:\Windows\SysWOW64\vmkwelf\tkgnedhl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2748
    • 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:2636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.1MB

    MD5

    c5039cc69854774bc6317767ae21afd0

    SHA1

    7c8ded333ff85b277cdbc241485b00a67ab2dd67

    SHA256

    ef6f1716a8bffd4589a69bf4d7dcc128a97e4edbd3fcccb82dd6cedf904cb684

    SHA512

    7535c86a1ef5acfdb500ce5ce18dbbf897969557e1221cf2df22dd454513cffea2ecf333ffd2b3f7e57aa702a37f19ef2332a68a4dd7535572003b585a5466b6

  • memory/1500-16-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1500-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

    Filesize

    1024KB

  • memory/1500-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1500-14-0x0000000000400000-0x0000000002DC3000-memory.dmp

    Filesize

    41.8MB

  • memory/1500-15-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/1500-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2636-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2636-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2636-8-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2636-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2636-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2748-12-0x0000000000400000-0x0000000002DC3000-memory.dmp

    Filesize

    41.8MB