Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23-12-2024 23:37

General

  • Target

    JaffaCakes118_da14cd2e1f896bcd043fce50c512500fa036a68be25bf744dbed94c78e971b87.exe

  • Size

    254KB

  • MD5

    e69ff98ea2f9d45fc961b31e8225dfff

  • SHA1

    0e30d3b1d5a120bef7d9ac10ec847c31dde82765

  • SHA256

    da14cd2e1f896bcd043fce50c512500fa036a68be25bf744dbed94c78e971b87

  • SHA512

    62d10ec5ba321c2f04587a1a4255e1c2395557ce46a39866823b807f4a7062c6bb7309c77bb82e08b89526e3fdce157b9d1df25c540d0e2ef3276e09be43bf58

  • SSDEEP

    3072:v0Dpf7yqdUqSSWixrhMMp5JvpmzI5RjRMF7wgBdOXCMueDbhacvPhEwrV56I/:YS3iIMpbpmz0jiFTdOXJu01dvZRN/

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.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\JaffaCakes118_da14cd2e1f896bcd043fce50c512500fa036a68be25bf744dbed94c78e971b87.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da14cd2e1f896bcd043fce50c512500fa036a68be25bf744dbed94c78e971b87.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2312
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dfzttnmb\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1200
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ivebchtg.exe" C:\Windows\SysWOW64\dfzttnmb\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2328
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create dfzttnmb binPath= "C:\Windows\SysWOW64\dfzttnmb\ivebchtg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da14cd2e1f896bcd043fce50c512500fa036a68be25bf744dbed94c78e971b87.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2036
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description dfzttnmb "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2684
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start dfzttnmb
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2808
    • 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:2668
  • C:\Windows\SysWOW64\dfzttnmb\ivebchtg.exe
    C:\Windows\SysWOW64\dfzttnmb\ivebchtg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da14cd2e1f896bcd043fce50c512500fa036a68be25bf744dbed94c78e971b87.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2792
    • 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:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.9MB

    MD5

    87ca8f8ca52a1966a4ef72c974da4854

    SHA1

    055c00d5f305c88e71e28feb53003ac5e7c91f26

    SHA256

    a16b0cb2d6d786697f55e3cb6a1907d6c3d6db22be8cc05932c47500d1f2d622

    SHA512

    348e8b11dcc1eebecc4f9643bbf3c4dabaea69459ad36378512c42ecc26a8c46ea16bc8ec4a3932965c2c6a3daf24c32ac07cbdff6694e792cbaad8de3431dd5

  • memory/2312-1-0x00000000011E0000-0x00000000012E0000-memory.dmp

    Filesize

    1024KB

  • memory/2312-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2312-4-0x0000000000400000-0x0000000001085000-memory.dmp

    Filesize

    12.5MB

  • memory/2312-8-0x0000000000400000-0x0000000001085000-memory.dmp

    Filesize

    12.5MB

  • memory/2312-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2568-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2568-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2568-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2568-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2568-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2792-16-0x0000000000400000-0x0000000001085000-memory.dmp

    Filesize

    12.5MB