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Analysis

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

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2024, 22:02

General

  • Target

    JaffaCakes118_3cac8d9e28a92e9d0d5b598b7f5f204b770ed4c05c12dd62e320bf480fc67ea1.exe

  • Size

    237KB

  • MD5

    7a1a48ccd69108c3d310aee449113b16

  • SHA1

    c60353c5f012f5203f3d3a13bf10ef98acb34bc0

  • SHA256

    3cac8d9e28a92e9d0d5b598b7f5f204b770ed4c05c12dd62e320bf480fc67ea1

  • SHA512

    2d36b02981ae72635728f4cc95ce2e47649ae9b98ce6c2e407eb00f6745dabacfa3df5dc5f398a3f73c7038ac17b6a2d80ee3486d1881d2ae850f090a7423fd1

  • SSDEEP

    6144:K4oK+W6n72e2Xr7OoNH9m8Pr/lJQlfZJqK:KBSY72e2XnNH9mq/l+b

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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 6 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_3cac8d9e28a92e9d0d5b598b7f5f204b770ed4c05c12dd62e320bf480fc67ea1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3cac8d9e28a92e9d0d5b598b7f5f204b770ed4c05c12dd62e320bf480fc67ea1.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tinfqdmq\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1456
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jzugamqi.exe" C:\Windows\SysWOW64\tinfqdmq\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3108
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create tinfqdmq binPath= "C:\Windows\SysWOW64\tinfqdmq\jzugamqi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3cac8d9e28a92e9d0d5b598b7f5f204b770ed4c05c12dd62e320bf480fc67ea1.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1168
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description tinfqdmq "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4452
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start tinfqdmq
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1212
    • 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:3076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 1048
      2⤵
      • Program crash
      PID:1900
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 1276
      2⤵
      • Program crash
      PID:3544
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 1288
      2⤵
      • Program crash
      PID:2248
  • C:\Windows\SysWOW64\tinfqdmq\jzugamqi.exe
    C:\Windows\SysWOW64\tinfqdmq\jzugamqi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3cac8d9e28a92e9d0d5b598b7f5f204b770ed4c05c12dd62e320bf480fc67ea1.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:4496
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 516
      2⤵
      • Program crash
      PID:3892
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 524
      2⤵
      • Program crash
      PID:2596
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 536
      2⤵
      • Program crash
      PID:5096
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 1932 -ip 1932
    1⤵
      PID:3028
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1932 -ip 1932
      1⤵
        PID:1004
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1932 -ip 1932
        1⤵
          PID:2480
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1712 -ip 1712
          1⤵
            PID:3688
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 1712 -ip 1712
            1⤵
              PID:1556
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1712 -ip 1712
              1⤵
                PID:1512

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

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

                Filesize

                13.9MB

                MD5

                e4cfe25605f7ccf066000316b6cca5a8

                SHA1

                5b5dfd9ec49347494ad12e9ef7a7076110d4d047

                SHA256

                e79a5a33e24a72c3ea23ab952864ebeaa311744bfe673e289c26c8737d700a9e

                SHA512

                fe59a9a0c451aa3acb2ab1b86865aa39bec0fd7e87b7b5af8f12b8ceec271120adfcb7e4ea11d16155323645ed8e84691470bcbd3d601eb882b2f9b31e2c9486

              • memory/1712-8-0x0000000000400000-0x000000000086B000-memory.dmp

                Filesize

                4.4MB

              • memory/1712-12-0x0000000000400000-0x000000000086B000-memory.dmp

                Filesize

                4.4MB

              • memory/1712-9-0x0000000000400000-0x000000000086B000-memory.dmp

                Filesize

                4.4MB

              • memory/1932-13-0x0000000000400000-0x000000000086B000-memory.dmp

                Filesize

                4.4MB

              • memory/1932-3-0x0000000000400000-0x0000000000415000-memory.dmp

                Filesize

                84KB

              • memory/1932-15-0x0000000000400000-0x0000000000415000-memory.dmp

                Filesize

                84KB

              • memory/1932-14-0x00000000008A0000-0x00000000008B3000-memory.dmp

                Filesize

                76KB

              • memory/1932-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp

                Filesize

                1024KB

              • memory/1932-2-0x00000000008A0000-0x00000000008B3000-memory.dmp

                Filesize

                76KB

              • memory/4496-10-0x0000000000F80000-0x0000000000F95000-memory.dmp

                Filesize

                84KB

              • memory/4496-17-0x0000000000F80000-0x0000000000F95000-memory.dmp

                Filesize

                84KB

              • memory/4496-18-0x0000000000F80000-0x0000000000F95000-memory.dmp

                Filesize

                84KB