Overview

overview

10

Static

static

7

03851a2a3e...6d.exe

windows7_x64

10

03851a2a3e...6d.exe

windows10-2004_x64

9

Sharing

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General

  • Target

    03851a2a3ee21b1d36e1917e4596bf6d

  • Size

    3.1MB

  • Sample

    220205-tkm4nsddan

  • MD5

    03851a2a3ee21b1d36e1917e4596bf6d

  • SHA1

    74bcfd6ff268a2a5be55442fd87e405d15915378

  • SHA256

    c41d9c68c367fdf7651d35bc0d85b950681ac26df3f65a05bfbf9af19d3dd368

  • SHA512

    15b62e840f348065fda30bf0152c7dd0493597d14ab9feac6be33d63f257f7509d0c68cbbb83e5a2de4b18fb5cb6ff714484f005194f924b603ce3a0c5dd8fb2

Score
10/10
evasionpersistencesuricatathemidatrojan

Malware Config

Targets

    • Target

      03851a2a3ee21b1d36e1917e4596bf6d

    • Size

      3.1MB

    • MD5

      03851a2a3ee21b1d36e1917e4596bf6d

    • SHA1

      74bcfd6ff268a2a5be55442fd87e405d15915378

    • SHA256

      c41d9c68c367fdf7651d35bc0d85b950681ac26df3f65a05bfbf9af19d3dd368

    • SHA512

      15b62e840f348065fda30bf0152c7dd0493597d14ab9feac6be33d63f257f7509d0c68cbbb83e5a2de4b18fb5cb6ff714484f005194f924b603ce3a0c5dd8fb2

    Score
    10/10
    evasionpersistencesuricatathemidatrojan

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • suricata: ET MALWARE DCRAT Activity (GET)

      suricata: ET MALWARE DCRAT Activity (GET)

      suricata

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

      evasion

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks