Analysis

  • max time kernel
    149s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    30-08-2024 22:50

General

  • Target

    2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe

  • Size

    14.9MB

  • MD5

    72eacd8c0200a968c6a409622545fc23

  • SHA1

    79b47393103c7dc3a936e159fcc04f305214ffe6

  • SHA256

    8ce486ceb12f06bb549a6d2ee456e0805f5019e4a35313bce08c6f36b7608177

  • SHA512

    4cc3b990608ff68677d1cf4db332fb0e48df030d4af900038c1445d51f52eeeb50025818a8b82ee54ce434cc69de5cbfcba4d9ccb62c424d98c2ad40c1050dc4

  • SSDEEP

    6144:G+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:G+r1IeSXMXc7LlxWV4Ug97GZ+ej

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.

  • 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\2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kwbargbi\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3008
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dfaricjc.exe" C:\Windows\SysWOW64\kwbargbi\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1784
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create kwbargbi binPath= "C:\Windows\SysWOW64\kwbargbi\dfaricjc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2316
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description kwbargbi "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2916
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start kwbargbi
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2784
    • 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:2912
  • C:\Windows\SysWOW64\kwbargbi\dfaricjc.exe
    C:\Windows\SysWOW64\kwbargbi\dfaricjc.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-08-30_72eacd8c0200a968c6a409622545fc23_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:296
    • 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:2364

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    13.0MB

    MD5

    df03e9b89b407af88ae04c6f006b52f5

    SHA1

    29a75eac5cd2e67b9d10b057c35c4a5be66249d3

    SHA256

    9e28544ff3df937db1973d722b2162b8e8158aee234e537563287652567160bb

    SHA512

    d543141d06f3e3adeca3df1ba28f8e395fdc08fd468dd04673d7ed9fa36610381c2299d6fc21094f1412819e24919d2e7cb4cea693c15105f2fe7bcb381c62eb

  • memory/296-11-0x0000000000400000-0x000000000051A000-memory.dmp

    Filesize

    1.1MB

  • memory/628-1-0x0000000000230000-0x0000000000330000-memory.dmp

    Filesize

    1024KB

  • memory/628-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/628-14-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/628-13-0x0000000000400000-0x000000000051A000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-10-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2364-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2364-7-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2364-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2364-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB