Analysis

  • max time kernel
    148s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2024 19:16

General

  • Target

    2024-11-28_fedd828163ace0def6fe0de3eeeb1efe_karagany_mafia.exe

  • Size

    14.2MB

  • MD5

    fedd828163ace0def6fe0de3eeeb1efe

  • SHA1

    1dff7ea1b1ba8ea8fcabb986c350f3a8188dc98c

  • SHA256

    bf6d3fba5f7f3ee033c1ff21f726477751b3c8934da0568a66d536bae45ce226

  • SHA512

    e5f37ea0cb0fe5cb41977763a04a61f1b95082fcc34b72682cf12311faa66b4f6ec679ff9688891b5e9f2b3b5eb3c41372742b17d6c59ea3635a2d61aceb9b3b

  • SSDEEP

    6144:IXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:IXzuKJ8GD96ySzTcANnQMMMMMMMb

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\2024-11-28_fedd828163ace0def6fe0de3eeeb1efe_karagany_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-28_fedd828163ace0def6fe0de3eeeb1efe_karagany_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2248
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qtcbzmh\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2540
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\younowmv.exe" C:\Windows\SysWOW64\qtcbzmh\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2288
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create qtcbzmh binPath= "C:\Windows\SysWOW64\qtcbzmh\younowmv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-28_fedd828163ace0def6fe0de3eeeb1efe_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1480
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description qtcbzmh "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2516
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start qtcbzmh
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1428
    • 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:2240
  • C:\Windows\SysWOW64\qtcbzmh\younowmv.exe
    C:\Windows\SysWOW64\qtcbzmh\younowmv.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-28_fedd828163ace0def6fe0de3eeeb1efe_karagany_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1476
    • 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:2212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    12.1MB

    MD5

    af67cfc980c90d148ae0979190909b93

    SHA1

    aab77d2007c4ba736267fc1b9eefc46383ec5005

    SHA256

    8de233cbdd09bce86dbef2fd23e5352a9c47de245bc95e18ffeea1c71391b58b

    SHA512

    7ea71bfb737d588dccba9472dc8579c207f70221ffef13ecad1678bbdc37cb97deb0ce2925d2f15a0bf64390ec113d1aa10101a483a81811c687cfa8f83bfe51

  • memory/1476-17-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2212-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2212-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2212-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2212-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2212-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2248-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2248-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

    Filesize

    76KB

  • memory/2248-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2248-7-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2248-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

    Filesize

    76KB

  • memory/2248-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

    Filesize

    1024KB