Overview

overview

10

Static

static

7

Legacy IV - V1.1.exe

windows7-x64

10

Legacy IV - V1.1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Legacy IV - V1.1.exe

  • Size

    6.1MB

  • Sample

    240727-a83pgsygpe

  • MD5

    80d067daa15cf171657c489d7f68d09b

  • SHA1

    e975906cee540584cb9f578fceecfb69a0033bdf

  • SHA256

    4b00df9227e8b12fb3d48dddf07b649a3f1e55910e4b1d6267eaecb2ec711558

  • SHA512

    2c52986fd56d534c99a217f222829082ea59fea9643abac44db027fa49f324ca7e48136effc46a2156524f3c8d9e7f1b31c9ac37e925e036a526ab9ff792bbc1

  • SSDEEP

    98304:R9MsBy2TA+QjoTGRouTWV8K7nqe4Jpzz68j2UUEnQqKUK4DyNDPVzFcWCTi:HMCA+QMTGRovhqw4U3U0DZFcWCT

Score
10/10
agenttesladiscoveryevasionkeyloggerpersistenceprivilege_escalationspywarestealerthemidatrojan

Malware Config

Targets

    • Target

      Legacy IV - V1.1.exe

    • Size

      6.1MB

    • MD5

      80d067daa15cf171657c489d7f68d09b

    • SHA1

      e975906cee540584cb9f578fceecfb69a0033bdf

    • SHA256

      4b00df9227e8b12fb3d48dddf07b649a3f1e55910e4b1d6267eaecb2ec711558

    • SHA512

      2c52986fd56d534c99a217f222829082ea59fea9643abac44db027fa49f324ca7e48136effc46a2156524f3c8d9e7f1b31c9ac37e925e036a526ab9ff792bbc1

    • SSDEEP

      98304:R9MsBy2TA+QjoTGRouTWV8K7nqe4Jpzz68j2UUEnQqKUK4DyNDPVzFcWCTi:HMCA+QMTGRovhqw4U3U0DZFcWCT

    Score
    10/10
    agenttesladiscoveryevasionkeyloggerpersistenceprivilege_escalationspywarestealerthemidatrojan

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

      keyloggertrojanstealerspywareagenttesla

    • AgentTesla payload

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

      evasion

    • Downloads MZ/PE file

    • Sets service image path in registry

      persistence

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks