Overview

overview

10

Static

static

URLScan

urlscan

https://www.mediafir...

windows10_x64

10

Sharing

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General

  • Target

    https://www.mediafire.com/file/34cnh00obe1554x/Fiero.zip/file

  • Sample

    220113-q4vfbaafa5

Score
10/10
discoveryevasionpersistencethemidatrojan

Malware Config

Targets

    • Target

      https://www.mediafire.com/file/34cnh00obe1554x/Fiero.zip/file

    Score
    10/10
    discoveryevasionpersistencethemidatrojan

    • Modifies system executable filetype association

      persistence

    • Registers COM server for autorun

      persistence

    • Suspicious use of NtCreateProcessExOtherParentProcess

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

      evasion

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Checks whether UAC is enabled

      evasiontrojan

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks