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Analysis

  • max time kernel
    141s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2023, 07:08

General

  • Target

    291e91026dc87e8d85e4a25cdbdce09010c4a7f1b2492e23e3ec875a3370c7d7.dll

  • Size

    922KB

  • MD5

    22019e31ea6f7134c94358e9eb8516fe

  • SHA1

    51673f72f119b1fc391fcb8b0780c0077aac1e13

  • SHA256

    291e91026dc87e8d85e4a25cdbdce09010c4a7f1b2492e23e3ec875a3370c7d7

  • SHA512

    20d226aec3cc06aa2d62b555d144896fc6f7d575968f02997f96875640ba51801b9fd29925dd1e3ec092870a7696c5d14c1c0303f35607aa979f40a28ccc33d4

  • SSDEEP

    24576:pFQlHXEcOC4yQHNrJn46YoNP0jhqFRDxVgx9NbMMdh:8l3EcOJyKNl4kOj6DxoM

Malware Config

Signatures

  • FatalRat

    FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

  • Fatal Rat payload 18 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Blocklisted process makes network request 5 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\291e91026dc87e8d85e4a25cdbdce09010c4a7f1b2492e23e3ec875a3370c7d7.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\291e91026dc87e8d85e4a25cdbdce09010c4a7f1b2492e23e3ec875a3370c7d7.dll,#1
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Blocklisted process makes network request
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2856-0-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-1-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-2-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-3-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-4-0x0000000077A20000-0x0000000077A22000-memory.dmp

    Filesize

    8KB

  • memory/2856-5-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-6-0x0000000000450000-0x0000000000451000-memory.dmp

    Filesize

    4KB

  • memory/2856-7-0x0000000000960000-0x0000000000962000-memory.dmp

    Filesize

    8KB

  • memory/2856-8-0x0000000000950000-0x0000000000951000-memory.dmp

    Filesize

    4KB

  • memory/2856-9-0x0000000000A00000-0x0000000000A01000-memory.dmp

    Filesize

    4KB

  • memory/2856-10-0x0000000000670000-0x00000000006A6000-memory.dmp

    Filesize

    216KB

  • memory/2856-13-0x00000000006B0000-0x00000000006C0000-memory.dmp

    Filesize

    64KB

  • memory/2856-15-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-16-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-17-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-18-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-19-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-20-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-21-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-22-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-23-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-24-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-25-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-26-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-27-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-28-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-29-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-30-0x0000000010000000-0x0000000010209000-memory.dmp

    Filesize

    2.0MB