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Analysis

  • max time kernel
    121s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 03:47

General

  • Target

    26de7dce5b03de18618ccffacb5e80b3.dll

  • Size

    2.2MB

  • MD5

    26de7dce5b03de18618ccffacb5e80b3

  • SHA1

    d60913ea70a875abff085c14be1a8297c1308941

  • SHA256

    f4bcf6c24b99666c523f2364ff26e23931e8e594af5b4527a0cdc98dbfe72b0f

  • SHA512

    1f78395a169e4d8f27aad962d386fd55b1d4c453ebd33fc3221b95afac5a7d44e54fa52e0f5719c561ab318dd72cad588017a8f3518db9c0f089da2b482b54db

  • SSDEEP

    49152:HReqHgVbX92fshlPs/T/ZKiWCwsLD06xQn+/F3Q1sBp1b9Mos1KM6J:HRRAdgkfs/A+pLPxQ+93QSBr9DJ

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.

  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\26de7dce5b03de18618ccffacb5e80b3.dll,#1
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:1892
  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\26de7dce5b03de18618ccffacb5e80b3.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1892-0-0x0000000010000000-0x00000000105F3000-memory.dmp

    Filesize

    5.9MB

  • memory/1892-1-0x0000000010000000-0x00000000105F3000-memory.dmp

    Filesize

    5.9MB

  • memory/1892-2-0x0000000010000000-0x00000000105F3000-memory.dmp

    Filesize

    5.9MB

  • memory/1892-4-0x0000000077120000-0x0000000077122000-memory.dmp

    Filesize

    8KB

  • memory/1892-3-0x0000000010000000-0x00000000105F3000-memory.dmp

    Filesize

    5.9MB