Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2024 11:21

General

  • Target

    JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe

  • Size

    254KB

  • MD5

    3f97e25b571e5b39c46248482468af0b

  • SHA1

    7292c6503bb2f0315d9bd02fa03703222e845aa6

  • SHA256

    045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9

  • SHA512

    66ed5364cc36688f9bb176cc0f8ff90040de30ea24a90ed159416a0353278d9252fea5bfee9e847b21e5724b4e91677602fd50b7a054c3eb45866efd0cbdbfde

  • SSDEEP

    6144:e2HFrM+PL3nRZnvwnZFVyOIauHn4HhV24q:hM+DnbvwnZjyOvDHhM4q

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_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lwdqbuuc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2652
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qdmjkpbo.exe" C:\Windows\SysWOW64\lwdqbuuc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2668
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create lwdqbuuc binPath= "C:\Windows\SysWOW64\lwdqbuuc\qdmjkpbo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2748
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description lwdqbuuc "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2712
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start lwdqbuuc
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2676
    • 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:2920
  • C:\Windows\SysWOW64\lwdqbuuc\qdmjkpbo.exe
    C:\Windows\SysWOW64\lwdqbuuc\qdmjkpbo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2956
    • 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:2600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    12.2MB

    MD5

    ee7a6a12c72dfffdd8dc966916370e93

    SHA1

    f3c9a2c8c39da572fad7d7b0445879c3af06c977

    SHA256

    02bb01fd787353480b7dfe5afaee53d228597fc55d0a8ea0598d435f6558a2b6

    SHA512

    d9f76955148bc629e56a61674017b5fed231b3f8d87ee15649a452678678b287b81a36755f42e80c0321fe36362dfbd1fd356a3ba152ccec753efdd09115020c

  • memory/2084-7-0x0000000000400000-0x0000000001085000-memory.dmp

    Filesize

    12.5MB

  • memory/2084-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2084-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2084-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2084-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2084-1-0x0000000001220000-0x0000000001320000-memory.dmp

    Filesize

    1024KB

  • memory/2600-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2600-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2600-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2600-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2600-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2956-17-0x0000000000400000-0x0000000001085000-memory.dmp

    Filesize

    12.5MB