Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 01:25

General

  • Target

    JaffaCakes118_488dd7508bcba135c824c79e64f40cb6a4dbc150097999290b570b04fc68e919.exe

  • Size

    337KB

  • MD5

    2488336d76b57d7a3e72980a209d3a0a

  • SHA1

    09c54507231eff98d169ee13a080727e4c31144c

  • SHA256

    488dd7508bcba135c824c79e64f40cb6a4dbc150097999290b570b04fc68e919

  • SHA512

    93fccad60a145216754473ef9da8309b9c2450eba2ceb21af4bd25d4e8db2c729e5adcbb050b603d8921341f732094929ce78bd8519ec18f3aac7a98de40b917

  • SSDEEP

    6144:39Gu9W43Ah8//SqtsaHlgYnOyLGFx6qv4:Do43AhEKqtsaHCDyLGF3v4

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_488dd7508bcba135c824c79e64f40cb6a4dbc150097999290b570b04fc68e919.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_488dd7508bcba135c824c79e64f40cb6a4dbc150097999290b570b04fc68e919.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\awpqizr\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3040
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fyjzkhat.exe" C:\Windows\SysWOW64\awpqizr\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:552
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create awpqizr binPath= "C:\Windows\SysWOW64\awpqizr\fyjzkhat.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_488dd7508bcba135c824c79e64f40cb6a4dbc150097999290b570b04fc68e919.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2572
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description awpqizr "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1632
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start awpqizr
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2740
    • 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:2608
  • C:\Windows\SysWOW64\awpqizr\fyjzkhat.exe
    C:\Windows\SysWOW64\awpqizr\fyjzkhat.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_488dd7508bcba135c824c79e64f40cb6a4dbc150097999290b570b04fc68e919.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2560
    • 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:2532

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.4MB

    MD5

    f22aead79ef658501c47d58e12b9ae25

    SHA1

    1acc9a4904a30d5b52f84a462f50ed19783a9b92

    SHA256

    ae82405fd4bc5444ec8fe3e8cf48135a44191ff345e1c2fe759915921f9b9d91

    SHA512

    bc7cd297caeae817692a2ff49ee7c99946ea8e4ec5e6f2772b3c5f7773452227f1946b555e37a001f1de7b33997c36970363201350f08803ed92f0590b89d80e

  • memory/2532-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2532-19-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2532-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2532-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2532-12-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2560-18-0x0000000000400000-0x0000000002B4C000-memory.dmp

    Filesize

    39.3MB

  • memory/2648-4-0x0000000000400000-0x0000000002B4C000-memory.dmp

    Filesize

    39.3MB

  • memory/2648-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2648-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2648-8-0x0000000000400000-0x0000000002B4C000-memory.dmp

    Filesize

    39.3MB

  • memory/2648-10-0x0000000002D20000-0x0000000002E20000-memory.dmp

    Filesize

    1024KB

  • memory/2648-1-0x0000000002D20000-0x0000000002E20000-memory.dmp

    Filesize

    1024KB