Overview

overview

9

Static

static

7

固定用æ...¼‰.exe

windows7_x64

9

固定用æ...¼‰.exe

windows10-2004_x64

9

Analysis

  • max time kernel
    4265058s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    17-01-2022 15:35

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General

  • Target

    固定用户é”V2（去除è“å±å…³æœºä¹‹ç±»çš„所有暗装）.exe

  • Size

    3.9MB

  • MD5

    3ca0a601129170828f89a70f63dec5b8

  • SHA1

    8e1f1ac711133e37026468c75f554c56d8441531

  • SHA256

    bb831434dada721f000a29589a4a2354e15b4c1c73191c8bac8638d91481dc8b

  • SHA512

    7958d5da3964f53a18e1c0c13ecf309384cd88441a611f69a378dd478fcd48107847b62e6b8947a8544920c6d9e58e2a3bd01ea0ffc7f62165a9f25297033849

Score
9/10
evasionthemidatrojan

Malware Config

Signatures

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

    themida
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\固定用户é”V2（去除è“å±å…³æœºä¹‹ç±»çš„所有暗装）.exe
    "C:\Users\Admin\AppData\Local\Temp\固定用户é”V2（去除è“å±å…³æœºä¹‹ç±»çš„所有暗装）.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetWindowsHookEx
    PID:2788
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2788 -s 1076
      2⤵
      • Program crash
      PID:2644
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2788 -ip 2788
    1⤵
      PID:2856
    • C:\Windows\system32\MusNotification.exe
      C:\Windows\system32\MusNotification.exe
      1⤵
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:1528

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Credential Access

    Discovery

    Query Registry

    3
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    System Information Discovery

    4
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/2788-130-0x0000000000400000-0x0000000000D07000-memory.dmp
      Filesize

      9.0MB

      Download
    • memory/2788-131-0x0000000000400000-0x0000000000D07000-memory.dmp
      Filesize

      9.0MB

      Download
    • memory/2788-132-0x0000000000400000-0x0000000000D07000-memory.dmp
      Filesize

      9.0MB

      Download
    • memory/2788-133-0x0000000000400000-0x0000000000D07000-memory.dmp
      Filesize

      9.0MB

      Download