Overview

overview

10

Static

static

7

aInjector ...32.exe

windows7_x64

9

aInjector ...32.exe

windows10_x64

10

Analysis

  • max time kernel
    29s
  • max time network
    31s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    12-12-2021 12:50

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General

  • Target

    aInjector Win64_x32.exe

  • Size

    3.6MB

  • MD5

    45539053a6c4a180b590a7af970fc3ab

  • SHA1

    8a091f013cdbe5b0f7308692a75bd95c544a7e5a

  • SHA256

    e341a13e9d2d6974d68018a8d8f28f4a40ef8b1fe063384eda97ebbbad7ab80a

  • SHA512

    498c61bb0949ef48e1bf834e3fce02ddc7b857e794ce02d97c615f03d2c93420799cd7476bdd4bb15768396cd28668060da0c6e9914039d6bc010f32ddafea85

Score
10/10
evasionthemidatrojan

Malware Config

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • 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 1 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aInjector Win64_x32.exe
    "C:\Users\Admin\AppData\Local\Temp\aInjector Win64_x32.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:3732
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3732 -s 114008
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:884

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

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/3732-118-0x0000000077A60000-0x0000000077BEE000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/3732-119-0x0000000000070000-0x0000000000071000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3732-121-0x00000000054C0000-0x000000000551A000-memory.dmp
    Filesize

    360KB

    Download
  • memory/3732-122-0x00000000031D0000-0x00000000031D1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3732-123-0x0000000005700000-0x0000000005701000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3732-124-0x0000000005780000-0x0000000005781000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3732-125-0x0000000006D40000-0x0000000006D41000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3732-126-0x00000000064F0000-0x00000000064F1000-memory.dmp
    Filesize

    4KB

    Download