Analysis

  • max time kernel
    145s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2024 19:42

General

  • Target

    2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe

  • Size

    12.6MB

  • MD5

    81a382a5576df8f00829954dd03dcd9a

  • SHA1

    e4af255bf6240265fa8cb8f9bb8a6adef61cbbf6

  • SHA256

    243938a63bcc06a2b08d3801666db579d1ea72aa25c41c772b6a98c9b2d42373

  • SHA512

    4ce8399b9bdacd33df2836c087dcf4dbd2eec1aed5763e988350121113b88f21eee00eebf01886e6b3f598c0460fc2702afaff03d0171db069634928c4d4ea3f

  • SSDEEP

    6144:RXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:RXzuKJ8GD96ySzTcANnQMMMMMMMb

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\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qgaxfbmj\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2256
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\adlljhlu.exe" C:\Windows\SysWOW64\qgaxfbmj\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2924
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create qgaxfbmj binPath= "C:\Windows\SysWOW64\qgaxfbmj\adlljhlu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2776
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description qgaxfbmj "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2888
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start qgaxfbmj
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2736
    • 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:2460
  • C:\Windows\SysWOW64\qgaxfbmj\adlljhlu.exe
    C:\Windows\SysWOW64\qgaxfbmj\adlljhlu.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2836
    • 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:2904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.7MB

    MD5

    25b0d6182adcda395fb8685847c77f54

    SHA1

    b026f95574e8e3735eeaff68c1c943a9b943aacb

    SHA256

    369f8cd00b2054359079e3e4476cd66c0a92e414270c6637d94da45929cb550c

    SHA512

    9fab7daf1d6a1fd8fefc82ccff05092797d1bd8e206459bb3e1e840546a3532564c7a29b688d29a357b27bdf2a3a2e8be945477029477a44f4da1f2a43ab3338

  • memory/2220-7-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2220-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2220-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

    Filesize

    76KB

  • memory/2220-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2220-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

    Filesize

    76KB

  • memory/2220-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

    Filesize

    1024KB

  • memory/2836-17-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2904-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2904-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2904-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2904-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2904-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB