Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 12:39

General

  • Target

    MSS32.dll

  • Size

    957KB

  • MD5

    01c14c4c2b8568a3e8d2004c5930fed7

  • SHA1

    57ca5229b6c233d407061ec1f038da34b07bdf8c

  • SHA256

    a0ef00858d423763fa4aec6d0afa6cc9d9ebccf15717d183419f850402f2b546

  • SHA512

    ba2395e97acf7acaf8d840b408901f0547b2c164a262e56767cea2422dd8948c6613193c3b109d776200d36d57a0f800cc0f6462d602a389ffced9e450ac4400

  • SSDEEP

    24576:5BBCQFgtnGyfZ1ybM0OPj9RFPGEHouQOnYsdW1CJEx3:PBCGgtGMgM/FPGa/vnYsdW1uEx3

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\MSS32.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\MSS32.dll,#1
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/956-0-0x0000000021100000-0x000000002133B000-memory.dmp

    Filesize

    2.2MB

  • memory/956-3-0x0000000021100000-0x000000002133B000-memory.dmp

    Filesize

    2.2MB

  • memory/956-2-0x0000000021100000-0x000000002133B000-memory.dmp

    Filesize

    2.2MB

  • memory/956-1-0x0000000021100000-0x000000002133B000-memory.dmp

    Filesize

    2.2MB

  • memory/956-12-0x0000000021101000-0x0000000021120000-memory.dmp

    Filesize

    124KB

  • memory/956-11-0x0000000000440000-0x0000000000441000-memory.dmp

    Filesize

    4KB

  • memory/956-10-0x00000000004A0000-0x00000000004A1000-memory.dmp

    Filesize

    4KB

  • memory/956-9-0x0000000000480000-0x0000000000481000-memory.dmp

    Filesize

    4KB

  • memory/956-8-0x0000000000320000-0x0000000000321000-memory.dmp

    Filesize

    4KB

  • memory/956-7-0x0000000000490000-0x0000000000492000-memory.dmp

    Filesize

    8KB

  • memory/956-6-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/956-5-0x0000000000470000-0x0000000000471000-memory.dmp

    Filesize

    4KB

  • memory/956-4-0x0000000077C60000-0x0000000077C62000-memory.dmp

    Filesize

    8KB