Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    07/05/2024, 03:24

General

  • Target

    1f4acc2840193a2b3093cec932eea7eb_JaffaCakes118.exe

  • Size

    4.3MB

  • MD5

    1f4acc2840193a2b3093cec932eea7eb

  • SHA1

    8dfa71b596d34b7281ea2533697957311822cf8b

  • SHA256

    818ddcd58e62b21749be9172cb7b8b1930c288961a40f74f79d32510da80a75b

  • SHA512

    cac08dc9777ab03950953f9db5fdca0e73b51d64f373973c0cd047bf68d616408679a2c99297ea5e44e9f95a4d0ac95e5247fcabc99b5b30f170bb29a5e7fa03

  • SSDEEP

    98304:aqSh5zRZwYeMMIV3PsU6Z8y6TaOphYLYSHinQpUt/YV5DyzFf:ajHYOpCm/s9y

Malware Config

Signatures

  • Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 12 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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.

  • Checks system information in the registry 2 TTPs 1 IoCs

    System information is often read in order to detect sandboxing environments.

  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f4acc2840193a2b3093cec932eea7eb_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1f4acc2840193a2b3093cec932eea7eb_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2392
    • C:\ProgramData\Чистилка\Чистилка.exe
      C:\ProgramData\Чистилка\Чистилка.exe /srvcreate
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2540
    • C:\Users\Admin\AppData\Local\Temp\1f4acc2840193a2b3093cec932eea7eb_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\1f4acc2840193a2b3093cec932eea7eb_JaffaCakes118.exe" /test
      2⤵
      • Executes dropped EXE
      PID:2964
    • C:\Users\Admin\AppData\Local\Temp\1f4acc2840193a2b3093cec932eea7eb_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\1f4acc2840193a2b3093cec932eea7eb_JaffaCakes118.exe" /restart /util
      2⤵
      • Enumerates VirtualBox registry keys
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Looks for VirtualBox Guest Additions in registry
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks system information in the registry
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:2412

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\Чистилка\config.dat

          Filesize

          476KB

          MD5

          beec2b93803d9876c69ecf76f02ea7a9

          SHA1

          171726abacd68f263cf6190f6bfd9d663a00a1df

          SHA256

          0a09959c3863b846394afd472d8357f7e42a70d51c6aa4049a4d9387aa91dcfe

          SHA512

          f2a683a4b2d56d2861cfa150c9c800e200e1f156fef32a578d5777541275b2c3fd8619b50c3b1937a1ac6e87ce0c0b61f7dc71559c1b95fe688434426af4eedb

        • C:\ProgramData\Чистилка\settings.json

          Filesize

          638B

          MD5

          7b1f4611fde318efe702102a65a7cf37

          SHA1

          3b6b25f7858135a903f06e4236d4d288179c32b8

          SHA256

          0fee7a989e4db82caa219cc5663e97678e1162267a7a170002755390716068f2

          SHA512

          d4e66fe6fb5265452ec3f66e36461c1707808881a6371a9caf6a074f0a17f3af3e89bb66db2ebc16fa9361d569afef6d3cf9287914728a86e7bc8800fad9fbbc

        • C:\Users\Admin\AppData\Local\Temp\cln1B22.tmp

          Filesize

          49KB

          MD5

          abee4387ab69da821ed9397cc651597d

          SHA1

          5d14f4afdbe15448bf884b528ffffab874f920a7

          SHA256

          ac1dfd38d2fa61e28211e196cd3d754f6ccfb220e8c1beba52e54825cf615e22

          SHA512

          e014294cb60b66bd259f4a6ce262fc9eca30a30e7674dae178dbac6132ba464120e5d1076ee81c1210a2f42f819d94373733172cef9fda77c9effb4eed53a904

        • C:\Windows\Fonts\pns.ttf

          Filesize

          127KB

          MD5

          df8c626474a73ab7a8b511655597c7c4

          SHA1

          5de28f387ea88553d195d1978286d43c33231969

          SHA256

          723091ba5a1b8e65164075516d69c00c71225c6dde61ffc32dd4047803ab42b5

          SHA512

          c8f7d1577cb70610c40b96c835faca6b916c4924b5061351c8a67287567556b2014efb7c73cdcc4fb6533829541cd0264b8a9e428d3c572e29c06b0d96633d59

        • \ProgramData\Чистилка\Чистилка.exe

          Filesize

          4.3MB

          MD5

          1f4acc2840193a2b3093cec932eea7eb

          SHA1

          8dfa71b596d34b7281ea2533697957311822cf8b

          SHA256

          818ddcd58e62b21749be9172cb7b8b1930c288961a40f74f79d32510da80a75b

          SHA512

          cac08dc9777ab03950953f9db5fdca0e73b51d64f373973c0cd047bf68d616408679a2c99297ea5e44e9f95a4d0ac95e5247fcabc99b5b30f170bb29a5e7fa03

        • \Users\Admin\AppData\Local\Temp\1f4acc2840193a2b3093cec932eea7eb_JaffaCakes118.exe

          Filesize

          5.9MB

          MD5

          d7ebb78bf1f0e4a8278b2d63013b1134

          SHA1

          498b315dcba9bf4403d6748be61453d5d8991b61

          SHA256

          c5a685088c44b1fbd01f49587af753b6a0f8f793de8d3b3d7e170574fef27ba8

          SHA512

          ead20a19b5262ce34f13bae9c9d1082ce5bf740759ea82042d83600094e38de7aea87d7533fdd7660369ec5bb8549e107aff562fa477711515eb9c15c9c93312

        • memory/2392-53-0x0000000000440000-0x0000000000441000-memory.dmp

          Filesize

          4KB

        • memory/2392-76-0x0000000000EC0000-0x000000000131E000-memory.dmp

          Filesize

          4.4MB