Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2024 21:40

General

  • Target

    JaffaCakes118_a76073552688bcc6ca3de18c2e7e2394bfb2b3808f8a7d66f51e331373d332f3.exe

  • Size

    238KB

  • MD5

    1854bf09896c03053dbc0a9bb214d346

  • SHA1

    7b5744d026e9a5f7965f1ebf3625070c638ea2ef

  • SHA256

    a76073552688bcc6ca3de18c2e7e2394bfb2b3808f8a7d66f51e331373d332f3

  • SHA512

    d261cd4150e913e7944df01592b255b021a51ecd2f6054f1db326acdd31b4b85989ae09221509e03977320d44e8f94dd2e05f9c3af48bbc009d93f9e6cde4cc4

  • SSDEEP

    6144:pNeWb3UACOZBOzSc1OItX7ITsq7igavwVf:pN9b37tZBkvnX79

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_a76073552688bcc6ca3de18c2e7e2394bfb2b3808f8a7d66f51e331373d332f3.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a76073552688bcc6ca3de18c2e7e2394bfb2b3808f8a7d66f51e331373d332f3.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\wlbllxiq\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2348
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fgeorkpa.exe" C:\Windows\SysWOW64\wlbllxiq\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1948
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create wlbllxiq binPath= "C:\Windows\SysWOW64\wlbllxiq\fgeorkpa.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a76073552688bcc6ca3de18c2e7e2394bfb2b3808f8a7d66f51e331373d332f3.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1084
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description wlbllxiq "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1256
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start wlbllxiq
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1816
    • 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:2776
  • C:\Windows\SysWOW64\wlbllxiq\fgeorkpa.exe
    C:\Windows\SysWOW64\wlbllxiq\fgeorkpa.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a76073552688bcc6ca3de18c2e7e2394bfb2b3808f8a7d66f51e331373d332f3.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2228
    • 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:2132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    12.1MB

    MD5

    9bd594a57f1cf1e8a747d88fc82c730b

    SHA1

    fadb13bd79f6557d642a2407b84ec978462e9fe4

    SHA256

    2569f0a51376d0c977099cbeb060ee0307cc7b45b59f7d9b4cadd70f5f5d48b6

    SHA512

    ca52f29a28c8b211378a101a4365fc63e34d0a1e71d53eb2dadd836539f1a87bc65d66a9d454ff29c7eb6dc52241f4045c95d1f3a3b5028a5669a0f701faa060

  • memory/2132-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2132-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2132-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2132-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2132-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2228-16-0x0000000000400000-0x0000000000445000-memory.dmp

    Filesize

    276KB

  • memory/2312-7-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

  • memory/2312-8-0x0000000000230000-0x0000000000243000-memory.dmp

    Filesize

    76KB

  • memory/2312-0-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

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

    Filesize

    84KB

  • memory/2312-6-0x0000000000400000-0x0000000000445000-memory.dmp

    Filesize

    276KB

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

    Filesize

    84KB

  • memory/2312-1-0x0000000000230000-0x0000000000243000-memory.dmp

    Filesize

    76KB