Analysis

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

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    23-07-2024 17:15

General

  • Target

    687caf067849f388fbe442a4c2650765_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    687caf067849f388fbe442a4c2650765

  • SHA1

    1e80d2bd0005f4a2f43c7ebf246a6922c667898e

  • SHA256

    fe755742c5e65ce96b1c21e84bec688153d7bae1a89d4e3299a5802fec5805da

  • SHA512

    e823441bdf42099ff521ebbf5187733801e79eb447f6ee55d6fc333066313881ed2404d1a53b8db469d5be7c4f37e10bf21ae307d8824e314c0b3da0c238685f

  • SSDEEP

    24576:0E2hlP2AQ94zrk0TjO0duGNHbQXGR50393DsJgWRV:REPYV0G47Q2R50tzsBRV

Malware Config

Extracted

Family

latentbot

C2

diretoriawow.zapto.org

Signatures

  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 3 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 9 IoCs
  • UPX packed file 22 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 7 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\687caf067849f388fbe442a4c2650765_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\687caf067849f388fbe442a4c2650765_JaffaCakes118.exe"
    1⤵
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Adds policy Run key to start application
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies WinLogon
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2920
      • C:\Windows\SysWOW64\fservice.exe
        C:\Windows\system32\fservice.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2728
        • C:\Windows\services.exe
          C:\Windows\services.exe -XP
          4⤵
          • Modifies WinLogon for persistence
          • Adds policy Run key to start application
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • Loads dropped DLL
          • Modifies WinLogon
          • Drops file in System32 directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2336
          • C:\Windows\SysWOW64\NET.exe
            NET STOP srservice
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:340
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 STOP srservice
              6⤵
              • System Location Discovery: System Language Discovery
              PID:2916
          • C:\Windows\SysWOW64\NET.exe
            NET STOP navapsvc
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2892
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 STOP navapsvc
              6⤵
              • System Location Discovery: System Language Discovery
              PID:2860
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\Users\Admin\AppData\Local\Temp\server.exe.bat
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2008
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    PID:2856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Z1fvcfsf321321.jpg

    Filesize

    8KB

    MD5

    05c097baf25ef268e4393b1419c548d0

    SHA1

    fe5c2e3cb7f6f40eb7fa5caec23a55e78c419cc1

    SHA256

    730f73801eb303b20475d6aaef0615d0c713438946d07eeacc9581531b6d3c1d

    SHA512

    7f5a4a71ca82145c238a67fcdb0d741afb7ceb24237ca77a6a915a26498fb7a9f74b1c2c5836db9c9c8e0685e095fe5e1527e6b0f727cb9187c02e0e3df337c5

  • C:\Users\Admin\AppData\Local\Temp\server.exe.bat

    Filesize

    129B

    MD5

    4f73a47eadc64c971ad4a3e09cceef9b

    SHA1

    7e782f6c004bfeb885ac5e05968ff8725a7a53bb

    SHA256

    b6f7c895d22726f59e43964ef4140ed8ee4f5b298dbafcdca2a01a40f7bf3c6c

    SHA512

    6332bffc816601e37217ad3111bf6658e8602857d92c97599cef1605c8ccb3c6e1fac7867be835f9fd26122a7d1ec34296ecfe9ca3a57cd47117036131c3f4d1

  • \Users\Admin\AppData\Local\Temp\server.exe

    Filesize

    339KB

    MD5

    b9bd61e5d4ed80c8dd06e6a7874175e0

    SHA1

    e2321705b04cbbc4d4dcefb661230d49a9c92ed9

    SHA256

    b8267b2de073317bd1625bcb28aaa8acebd874da9266d88ecd59e730f971826a

    SHA512

    51a5af8cc78196f79df196bb69ecabaf3c0b63bd203e1f3be3f66c9ed522e44da4f394af231af53f8343387ea5a42d86236e32fe925c8826d6549d7d3d3713a8

  • \Windows\SysWOW64\reginv.dll

    Filesize

    36KB

    MD5

    d4a3f90e159ffbcbc4f9740de4b7f171

    SHA1

    0542f5d1e2c23dca8d90766b3a8537dc3880e5c9

    SHA256

    2200dd5f83d2fb8c5d3994206a4fa9ff34b4cbfe56ed39a9a03c954cf45d8f77

    SHA512

    5493beb50b5f7d8ec52f32718d01696916ae173456005d0c1294ce695161ce5004aff58ee3892bf5db0f9b23720146a6d3ae8ffbcbbd81f84d894fdc8cf75a94

  • \Windows\SysWOW64\winkey.dll

    Filesize

    24KB

    MD5

    43e7d9b875c921ba6be38d45540fb9dd

    SHA1

    f22a73fc0d4aa3ea6c0b8f61d974b028f308acc4

    SHA256

    f1b2b0abe844e6ba812c7f8709a463a7f6c56fa6ac38d376a0739cc3469f795b

    SHA512

    2e74e23c0875b69b82319391c392132f28f4eb45aa412805130382498ae48969a06a2b3a7528b626fa7d7ddb6b006f19f0ef8d73cf73cb9a0c0df44a21077622

  • memory/2336-90-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-80-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-82-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-81-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-89-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-88-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-87-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-84-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-86-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-79-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-78-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-54-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-77-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-83-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2336-85-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2532-0-0x0000000000400000-0x00000000005C2000-memory.dmp

    Filesize

    1.8MB

  • memory/2532-5-0x0000000000400000-0x00000000005C2000-memory.dmp

    Filesize

    1.8MB

  • memory/2532-6-0x0000000000400000-0x00000000005C2000-memory.dmp

    Filesize

    1.8MB

  • memory/2532-11-0x00000000061A0000-0x000000000639E000-memory.dmp

    Filesize

    2.0MB

  • memory/2532-2-0x0000000000401000-0x0000000000403000-memory.dmp

    Filesize

    8KB

  • memory/2532-8-0x00000000056E0000-0x00000000056F0000-memory.dmp

    Filesize

    64KB

  • memory/2532-41-0x0000000000400000-0x00000000005C2000-memory.dmp

    Filesize

    1.8MB

  • memory/2532-42-0x0000000000400000-0x00000000005C2000-memory.dmp

    Filesize

    1.8MB

  • memory/2532-35-0x0000000005750000-0x0000000005752000-memory.dmp

    Filesize

    8KB

  • memory/2532-18-0x00000000061A0000-0x000000000639E000-memory.dmp

    Filesize

    2.0MB

  • memory/2728-51-0x00000000032E0000-0x00000000034DE000-memory.dmp

    Filesize

    2.0MB

  • memory/2728-69-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2728-49-0x00000000032E0000-0x00000000034DE000-memory.dmp

    Filesize

    2.0MB

  • memory/2728-34-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-36-0x0000000000220000-0x0000000000222000-memory.dmp

    Filesize

    8KB

  • memory/2920-72-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2920-30-0x0000000003280000-0x000000000347E000-memory.dmp

    Filesize

    2.0MB

  • memory/2920-25-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/2920-19-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB