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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2024, 14:43

General

  • Target

    JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe

  • Size

    188KB

  • MD5

    1f855ad0630354c9b8e575d15d289fad

  • SHA1

    6baaa9ce196472a74463d7dbe2a05a4433c81146

  • SHA256

    d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917

  • SHA512

    d2b3068c3f75897dd4952b8ea6634c0079f298c3dd93f4a0e539603314e089bd12c7ef8f93308c53031c3352afdbb91cc2ad7508672b23701262a3f6ad4ddaf6

  • SSDEEP

    3072:xE7PxL7B9burFSv5ucLkCI6Hyxo1+d9RDpZa9uD6Vdyhkx:x0L7BRc65JYCdyNDwVf

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_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mvrpiwzc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2316
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\djehqzzu.exe" C:\Windows\SysWOW64\mvrpiwzc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1076
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create mvrpiwzc binPath= "C:\Windows\SysWOW64\mvrpiwzc\djehqzzu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2096
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description mvrpiwzc "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1752
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start mvrpiwzc
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2532
    • 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:2172
  • C:\Windows\SysWOW64\mvrpiwzc\djehqzzu.exe
    C:\Windows\SysWOW64\mvrpiwzc\djehqzzu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1992
    • 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:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.5MB

    MD5

    b89a7e464260e0c65f1c58082367f905

    SHA1

    0c25ce9df526149113b09c704dd127d4ae5ac2c4

    SHA256

    d1364857ee0158b0ae3720e802b8e1af618fda1795879b06e5cce3bce1c3a936

    SHA512

    a376cd2c4b304343ddb65861f32d4f76cc81e903484fab1e7eb2236078fbe59a3e8b58cd8d2542b4306b5ce87b17fa9989fcd82fd712efc3c7c2c0c06e49bdff

  • memory/1992-15-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2484-7-0x00000000001B0000-0x00000000001BD000-memory.dmp

    Filesize

    52KB

  • memory/2484-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2484-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2484-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

    Filesize

    76KB

  • memory/2484-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

    Filesize

    52KB

  • memory/2484-6-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2484-1-0x00000000001C0000-0x00000000001D3000-memory.dmp

    Filesize

    76KB

  • memory/2716-13-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2716-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2716-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2716-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2716-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB