Analysis

  • max time kernel
    95s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2024 23:10

General

  • Target

    aa082fb51ba61505b2dbef4a7d947b75_JaffaCakes118.exe

  • Size

    108KB

  • MD5

    aa082fb51ba61505b2dbef4a7d947b75

  • SHA1

    4ad3dfa13341665657615208dcca7777208f5fe1

  • SHA256

    ef04ff83df983f65de4195c93ab319de6130e93ce25b9ec9719dc0268612ad2d

  • SHA512

    e31769357ec47c160231569c4a888e9f3780969755530f6088655ced7d0bb292bf2c88034a7a20160bd56443ed0288699c18800340b0aa9df26b1ca3f6b68ebb

  • SSDEEP

    1536:kxqjQ+P04wsZLnDrCwHGAC66Ro/4iq3jZR:Rr8WDrCrP6pAiCr

Malware Config

Signatures

  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Kills process with taskkill 1 IoCs
  • Modifies registry class 1 IoCs
  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa082fb51ba61505b2dbef4a7d947b75_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\aa082fb51ba61505b2dbef4a7d947b75_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Users\Admin\AppData\Local\Temp\3582-490\aa082fb51ba61505b2dbef4a7d947b75_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\aa082fb51ba61505b2dbef4a7d947b75_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2960
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\B3FE.tmp\NEWbxAIM.BAT" "
        3⤵
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4820
        • C:\Windows\SysWOW64\reg.exe
          reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoDesktop /t REG_DWORD /d 1 /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:3268
        • C:\Windows\SysWOW64\reg.exe
          reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\RestrictRun /v 1 /t REG_DWORD /d C:\Windows\explorer.exe /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:2100
        • C:\Windows\SysWOW64\reg.exe
          reg add HKCUSoftwareMicrosoftWindowsCurrentVersionPoliciesSystem /v DisableTaskMgr /t REG_DWORD /d 1 /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:2428
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Filel" /t REG_SZ /d "C:\Windows\system32\explorerr.exe" /f
          4⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:4424
        • C:\Windows\SysWOW64\reg.exe
          reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoControlPanel /t REG_DWORD /d 1 /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:312
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im explorer.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

    Filesize

    2.4MB

    MD5

    644fd42f8199d1e407d58785a9c8c7d1

    SHA1

    e9302e4de73124554a63e96b1bc078819fd5c7e5

    SHA256

    859dd22745d751ba2e9a199e538c7e868b93374a63544e2feab24fb07607607e

    SHA512

    b49b2aec01371be504dd8eb7fcb1cbd31ce52cce7a8d5923ed2c48c89530d83dde65c96a54ab40be5f017f6a7b1ce051bbb2940978d8073a34b9ccaaaadb0bb2

  • C:\Users\Admin\AppData\Local\Temp\3582-490\aa082fb51ba61505b2dbef4a7d947b75_JaffaCakes118.exe

    Filesize

    67KB

    MD5

    4cda2dd37404f434aac2a73714e2bcfb

    SHA1

    e8e42f8a4ec316feb1227a9905b9ea2eca4cbc7c

    SHA256

    0519ac1ea4371e137a3a97ab8d91e0c6c02950716f5d0b593926fb46a3425c58

    SHA512

    783e6d1528ee4b2b1667849358644dad00954041f0fc03eb8950ac8252c5d1a8db8992668fc989ab4bdd4f122a4867766dd867e1f823df778f1b3132ae15310c

  • C:\Users\Admin\AppData\Local\Temp\B3FE.tmp\NEWbxAIM.BAT

    Filesize

    27KB

    MD5

    ab1a10dbb485aa830585754845a8f961

    SHA1

    67e93271a28f584d346ed1cd830ad2ce88e483ad

    SHA256

    beba78e23ef00edae6ae998c45e7d68e4409de3ba68e336f84ec085419633f7e

    SHA512

    aefdf129400ff8129b95997f2b6469525c7fc55155ae3c32b54ffa9b433eaecdc384f21c7fbfab74f566050bcbe506aa80016a4ca1a57d327f65d8a783521f27

  • memory/4048-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4048-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4048-102-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB