Overview

overview

9

Static

static

7

taskhostw.exe

windows7-x64

9

taskhostw.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    147s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-08-2022 20:54

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General

  • Target

    taskhostw.exe

  • Size

    44.5MB

  • MD5

    c80de2166e297418ceac6dd1e3733f09

  • SHA1

    e4bd7d38e3dc7ca0d9b85d2b20b7a9f012ea1a82

  • SHA256

    4116562a1ee0fa7fc1119971b1c73afca0bb4e45104948d3b61303fbbab64660

  • SHA512

    27a85b4e16953fc83160cc76557855624e1780ac62aeae46d98a6b0a117772122c60e08d707ed29ad6e2d7a66f47eec45abc03634efd5cf555834df423866f85

  • SSDEEP

    786432:cgJ9RzMFawRf0ac415LIzsW0w/+bm+5qGwMEeBkmM3g6F388qkEfEs8Ne7Ctwy:cGMYO+4hw/+r03MEeBNIT388va5WWy

Score
9/10
evasionpersistencethemidatrojan

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
    evasion
  • Drops file in Drivers directory 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 10 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • AutoIT Executable 8 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 61 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\taskhostw.exe
    "C:\Users\Admin\AppData\Local\Temp\taskhostw.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Drops file in Drivers directory
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    PID:1480

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

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/1480-54-0x000007FEFC0D1000-0x000007FEFC0D3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1480-56-0x0000000077850000-0x00000000779F9000-memory.dmp
    Filesize

    1.7MB

    Download
  • memory/1480-55-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download
  • memory/1480-57-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download
  • memory/1480-58-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download
  • memory/1480-59-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download
  • memory/1480-60-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download
  • memory/1480-61-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download
  • memory/1480-62-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download
  • memory/1480-63-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download
  • memory/1480-64-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download
  • memory/1480-66-0x0000000077850000-0x00000000779F9000-memory.dmp
    Filesize

    1.7MB

    Download
  • memory/1480-65-0x000000013FAC0000-0x000000014302D000-memory.dmp
    Filesize

    53.4MB

    Download