Analysis

  • max time kernel
    92s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 20:54

General

  • Target

    a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe

  • Size

    4.4MB

  • MD5

    a251ab42e6336d564b858cdeefc2678b

  • SHA1

    660beae5f5312471029cc1393f1477408cbf6697

  • SHA256

    fd12ad7d9ac7ea5d0719ee1e9c1693e8aa55777ab695e87e1286474bad5b476b

  • SHA512

    ce9f82087e3e0625afc44e586f53c4363208c871314c93978699f256bcd835b492d3ff19cc7fbfe43c9f7b2533cfb123d1769e9090bb9c3068f3e5addaf13094

  • SSDEEP

    98304:tNwEf0x018aUP9GndDTFLx4FejNMaDje4Cq67QfguIPPt9oEW:tNwE8wUEn9T9mejXFM7QYZtlW

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 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 1 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.

  • UPX packed file 3 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4660
    • C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe
      C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe
      2⤵
      • Executes dropped EXE
      PID:2872
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 264
        3⤵
        • Program crash
        PID:744
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2872 -ip 2872
    1⤵
      PID:1608

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Discovery

    Query Registry

    3
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe
      Filesize

      106KB

      MD5

      7dc51d67dba12402674baf7e67bfc89d

      SHA1

      94b2e12ec5f4258bf8727d53276331457a558edb

      SHA256

      ebaf815f84fd4fb931265e7c92119d2ad540620dfe9f8883a4f08b6796318f87

      SHA512

      5d76770e6fab626f6b7de2126ef8af39bb2e49162dc0c14d06a074653a68ecb6bc381d930ce974ebc2f8c4dfcfa7502f8699a426cd837230d497165ddbf6c901

    • memory/2872-4-0x0000000000400000-0x0000000000462000-memory.dmp
      Filesize

      392KB

    • memory/2872-6-0x00000000005B0000-0x00000000005B1000-memory.dmp
      Filesize

      4KB

    • memory/2872-8-0x0000000000400000-0x0000000000462000-memory.dmp
      Filesize

      392KB

    • memory/4660-3-0x0000000000400000-0x0000000000E9A000-memory.dmp
      Filesize

      10.6MB

    • memory/4660-7-0x0000000000400000-0x0000000000E9A000-memory.dmp
      Filesize

      10.6MB

    • memory/4660-9-0x0000000000400000-0x0000000000E9A000-memory.dmp
      Filesize

      10.6MB