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
    25-12-2024 20:23

General

  • Target

    JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe

  • Size

    284KB

  • MD5

    7f73ad66202a5d4689c977e9351b7cfa

  • SHA1

    e679d98251eedcc308068c1488908168aa82ce14

  • SHA256

    4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226

  • SHA512

    cbf6f9a7d262ce7623c8d8ddb6720d627c93c61ac63b711f9e55b3fcb95269ac9a00d171d630a9c1719c7ffaae9e1e969fbbe7f76c8813b4d73fbc70a29f6c79

  • SSDEEP

    6144:EKDTIWFp63IcFTbID2uzbgwu6L7ITsqSigaTwVf:FTIQp635h62unnn7s

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_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dggrahjc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1892
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uejwdyxm.exe" C:\Windows\SysWOW64\dggrahjc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2064
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create dggrahjc binPath= "C:\Windows\SysWOW64\dggrahjc\uejwdyxm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:292
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description dggrahjc "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2468
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start dggrahjc
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2948
    • 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:2764
  • C:\Windows\SysWOW64\dggrahjc\uejwdyxm.exe
    C:\Windows\SysWOW64\dggrahjc\uejwdyxm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2384
    • 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:2776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    14.5MB

    MD5

    e4ae1b813615cef85c494cb758e17fa1

    SHA1

    6b308c6bd723799be255dd8b05e7b7c50f7a702b

    SHA256

    6c970d06b924024f74974e8896407adf70f2e54b97dcc2e6f4d48fb5320180ae

    SHA512

    9ce5087318ddc729b62f103ce98b997cd1eb2c594f2a1576e05dff41b09bb7856eca9adfa95784066011677becd1a6be66374f2909df8fb4528bb221dcb431a8

  • memory/2036-7-0x00000000001B0000-0x00000000001BD000-memory.dmp

    Filesize

    52KB

  • memory/2036-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2036-1-0x00000000001C0000-0x00000000001D3000-memory.dmp

    Filesize

    76KB

  • memory/2036-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2036-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

    Filesize

    76KB

  • memory/2036-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

    Filesize

    52KB

  • memory/2036-6-0x0000000000400000-0x0000000000451000-memory.dmp

    Filesize

    324KB

  • memory/2384-16-0x0000000000400000-0x0000000000451000-memory.dmp

    Filesize

    324KB

  • memory/2776-10-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2776-13-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2776-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2776-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2776-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB