Analysis

  • max time kernel
    147s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 12:37

General

  • Target

    JaffaCakes118_49dd8a16d3047c8a1d0b12f5179775e61bdf45b585e672a5b66bfab4dace0f89.exe

  • Size

    299KB

  • MD5

    2d2caed4cbe8b934b47006ea0afdae52

  • SHA1

    bfa6821af66ab22dcdcff90de4c0a1f20a0b6077

  • SHA256

    49dd8a16d3047c8a1d0b12f5179775e61bdf45b585e672a5b66bfab4dace0f89

  • SHA512

    fc27d1c30d7953d66c4f5dcc2a702e6780eb999fe7a9b2035696daf894c5549a9f52f89892c9b4f6708f36ffd87e0a1b05bf26790b5fa3213253b86233bc5de7

  • SSDEEP

    3072:IdvQC1KyeOzo/ujVI5Oc6sQO5V7UFHeosqUOZWssdglsnhOuShs9nthQIP5Ylryt:G3EupTDO5VIFLLZWsegl+hOFYnUtT

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

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\JaffaCakes118_49dd8a16d3047c8a1d0b12f5179775e61bdf45b585e672a5b66bfab4dace0f89.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_49dd8a16d3047c8a1d0b12f5179775e61bdf45b585e672a5b66bfab4dace0f89.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:576
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nzhwfhck\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:484
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dophuskv.exe" C:\Windows\SysWOW64\nzhwfhck\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:944
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create nzhwfhck binPath= "C:\Windows\SysWOW64\nzhwfhck\dophuskv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_49dd8a16d3047c8a1d0b12f5179775e61bdf45b585e672a5b66bfab4dace0f89.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2388
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description nzhwfhck "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2332
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start nzhwfhck
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2848
    • 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:2792
  • C:\Windows\SysWOW64\nzhwfhck\dophuskv.exe
    C:\Windows\SysWOW64\nzhwfhck\dophuskv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_49dd8a16d3047c8a1d0b12f5179775e61bdf45b585e672a5b66bfab4dace0f89.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2864
    • 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:2856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.3MB

    MD5

    13563a654e5d78a03564f62bf56afa3b

    SHA1

    3e2d554cdd1c854397fb94c2d934830c2d4e93b1

    SHA256

    d37830bd01f3b32d39190db5bbc23cba1e243f90dc96a90caea3c16ee5d5dde5

    SHA512

    2927474afb09bce30f0671a5e8990702016c30fa52ab239d11223b223f766d8d593a9ba7978e7d9f1d7b85c2ba198a3398276905d8d02d7d26986b0d7b68c960

  • memory/576-7-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/576-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/576-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/576-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/576-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/576-1-0x0000000000600000-0x0000000000700000-memory.dmp

    Filesize

    1024KB

  • memory/2856-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2856-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2856-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2856-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2856-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2864-17-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB