Analysis

  • max time kernel
    139s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    16-06-2024 21:44

General

  • Target

    b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe

  • Size

    4.3MB

  • MD5

    b559da7e61ee30cde08e8828e2da3ea8

  • SHA1

    02471973900935d54a56b2a4c274cc6be599ad74

  • SHA256

    247994f7482ea2b8f341b7a3b16d3b73fb60f3e7627053cf02fccc7d5148f514

  • SHA512

    aa1be37bcd4193848bf08985d03a9ff2ee15715b00c814e8dca38790024420733d761e1182816b71cef3e73785a9faf87e4c8d07dc52655c6836b385cc6017cb

  • 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
  • Downloads MZ/PE file
  • 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 system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Drops file in Windows directory
    • 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:1808
    • C:\ProgramData\Чистилка\Чистилка.exe
      C:\ProgramData\Чистилка\Чистилка.exe /srvcreate
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1152
    • C:\Users\Admin\AppData\Local\Temp\b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe" /test
      2⤵
      • Executes dropped EXE
      PID:3012
    • C:\Users\Admin\AppData\Local\Temp\b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\b559da7e61ee30cde08e8828e2da3ea8_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:2340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Чистилка\Чистилка Uninstall.lnk

    Filesize

    1KB

    MD5

    e4a793186c4b5c428d7a5e462e8e4765

    SHA1

    792d9d205e87178430412ccb683b0132b1fad4fa

    SHA256

    e630a3dbd50f1dc75b05a5944b328821219a75a6c5a4f5cac881e6a201100911

    SHA512

    222355b802704d9abfb0e65f4cec00fe0b4398649a45656da284287ea16b09145285e5ca187abd9819c8fb8b67085bc02568c751ba7fdd1624d86b348c048777

  • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Чистилка\Чистилка.lnk

    Filesize

    1KB

    MD5

    6625782e1f2807823a8a007e1b6371a9

    SHA1

    a7195164484abef3daf1264b883a9714136b7bf7

    SHA256

    6448aaa5f2fb1032d79d6c3927aaf406a6a5539254fe58222d123a695a2c8cdf

    SHA512

    7a689e0e81b7f35cfde7ef051497525e4bf49033f12896eda9f93703f8bf26c22fd5436d01b5617c9949842d26069c09617c06ef58fd876951c79808af415513

  • C:\ProgramData\Чистилка\config.dat

    Filesize

    476KB

    MD5

    27e5755f181ac8b18cceace3f478eb2f

    SHA1

    2bf34e1b90d9ec47b97853622b0cdac4e1eb6c55

    SHA256

    2c353a75d5c38753b60234073e1a4732c7dd28f06a4422d1c4c434ff98614326

    SHA512

    98d21ce9b0480562dbd42a010a644729a1eee366d6f17956b799f32f01b778468282b7a617e478ebbeaeffce2dc032ebe7a2944555e31c632b06b0f55f763482

  • C:\ProgramData\Чистилка\settings.json

    Filesize

    638B

    MD5

    7b1f4611fde318efe702102a65a7cf37

    SHA1

    3b6b25f7858135a903f06e4236d4d288179c32b8

    SHA256

    0fee7a989e4db82caa219cc5663e97678e1162267a7a170002755390716068f2

    SHA512

    d4e66fe6fb5265452ec3f66e36461c1707808881a6371a9caf6a074f0a17f3af3e89bb66db2ebc16fa9361d569afef6d3cf9287914728a86e7bc8800fad9fbbc

  • C:\Users\Admin\AppData\Local\Temp\b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe

    Filesize

    5.9MB

    MD5

    d7ebb78bf1f0e4a8278b2d63013b1134

    SHA1

    498b315dcba9bf4403d6748be61453d5d8991b61

    SHA256

    c5a685088c44b1fbd01f49587af753b6a0f8f793de8d3b3d7e170574fef27ba8

    SHA512

    ead20a19b5262ce34f13bae9c9d1082ce5bf740759ea82042d83600094e38de7aea87d7533fdd7660369ec5bb8549e107aff562fa477711515eb9c15c9c93312

  • C:\Users\Admin\AppData\Local\Temp\cln76D6.tmp

    Filesize

    49KB

    MD5

    abee4387ab69da821ed9397cc651597d

    SHA1

    5d14f4afdbe15448bf884b528ffffab874f920a7

    SHA256

    ac1dfd38d2fa61e28211e196cd3d754f6ccfb220e8c1beba52e54825cf615e22

    SHA512

    e014294cb60b66bd259f4a6ce262fc9eca30a30e7674dae178dbac6132ba464120e5d1076ee81c1210a2f42f819d94373733172cef9fda77c9effb4eed53a904

  • \ProgramData\Чистилка\Чистилка.exe

    Filesize

    4.3MB

    MD5

    b559da7e61ee30cde08e8828e2da3ea8

    SHA1

    02471973900935d54a56b2a4c274cc6be599ad74

    SHA256

    247994f7482ea2b8f341b7a3b16d3b73fb60f3e7627053cf02fccc7d5148f514

    SHA512

    aa1be37bcd4193848bf08985d03a9ff2ee15715b00c814e8dca38790024420733d761e1182816b71cef3e73785a9faf87e4c8d07dc52655c6836b385cc6017cb

  • memory/1808-39-0x0000000000A60000-0x0000000000A61000-memory.dmp

    Filesize

    4KB

  • memory/1808-56-0x0000000000B80000-0x0000000000FDE000-memory.dmp

    Filesize

    4.4MB