Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-12-2024 02:00

General

  • Target

    JaffaCakes118_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe

  • Size

    284KB

  • MD5

    7d00be4ec65386f955765f985e6f674c

  • SHA1

    3f0aa8c7fd4d8d40bec0399f98f3fa2db5f90a32

  • SHA256

    d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1

  • SHA512

    0fc70c2af038fb7922dffdd804d6234914459a2ba8a90eaf356232a80528e67b4c719f66d1b0664008308f0368fcb2e889aab7f9e27864b7c516c28f3acb5a1f

  • SSDEEP

    6144:WLiJZN+SN48a0qkz6LJ4PKNhEYUVP4Mu:nr+w48aB26NHXEYU

Malware Config

Extracted

Family

tofsee

C2

mubrikych.top

oxxyfix.xyz

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Tofsee family
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Program crash 2 IoCs
  • 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4856
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qipcdwno\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3636
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eoctwjgv.exe" C:\Windows\SysWOW64\qipcdwno\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:316
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create qipcdwno binPath= "C:\Windows\SysWOW64\qipcdwno\eoctwjgv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:344
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description qipcdwno "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4916
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start qipcdwno
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3196
    • 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:2868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4856 -s 1036
      2⤵
      • Program crash
      PID:5052
  • C:\Windows\SysWOW64\qipcdwno\eoctwjgv.exe
    C:\Windows\SysWOW64\qipcdwno\eoctwjgv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5daf114f9b2952ea9b1a8a5dc001080158d48cc394b657331f642983d1ce0b1.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1912 -s 528
      2⤵
      • Program crash
      PID:3568
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4856 -ip 4856
    1⤵
      PID:648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1912 -ip 1912
      1⤵
        PID:2248

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        14.2MB

        MD5

        641706aa11bffaec79d7a911fa246db4

        SHA1

        3be3064352a4238793a2ea5fa2fe7ac37acc9184

        SHA256

        98d138bbd5f5982ab545c727e3794c89e14e2250aaee0780150227835991e481

        SHA512

        735b56253a345d53dccd4f05528ffd1dee86cbe9d88b89250265dbdc0b343aa4a21bf9c7d0f343447207bef98935f9ec71233d8f2c2c63459b5544de610ed05b

      • memory/1912-13-0x0000000000400000-0x00000000004C9000-memory.dmp

        Filesize

        804KB

      • memory/1912-12-0x0000000000400000-0x00000000004C9000-memory.dmp

        Filesize

        804KB

      • memory/1912-11-0x0000000000400000-0x00000000004C9000-memory.dmp

        Filesize

        804KB

      • memory/1912-18-0x0000000000400000-0x00000000004C9000-memory.dmp

        Filesize

        804KB

      • memory/3068-14-0x0000000000E50000-0x0000000000E65000-memory.dmp

        Filesize

        84KB

      • memory/3068-16-0x0000000000E50000-0x0000000000E65000-memory.dmp

        Filesize

        84KB

      • memory/3068-17-0x0000000000E50000-0x0000000000E65000-memory.dmp

        Filesize

        84KB

      • memory/4856-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4856-1-0x0000000000760000-0x0000000000860000-memory.dmp

        Filesize

        1024KB

      • memory/4856-7-0x0000000000400000-0x00000000004C9000-memory.dmp

        Filesize

        804KB

      • memory/4856-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4856-8-0x0000000000730000-0x0000000000743000-memory.dmp

        Filesize

        76KB

      • memory/4856-2-0x0000000000730000-0x0000000000743000-memory.dmp

        Filesize

        76KB