Overview

overview

9

Static

static

7

NeptnExternalFree.exe

windows7-x64

9

NeptnExternalFree.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    NeptnExternalFree.exe

  • Size

    3.4MB

  • Sample

    230324-2nrj9shg89

  • MD5

    bbedbbb87552cceb179e196588684cbc

  • SHA1

    d1b7d2834140f503d7a7b92df30fadece473c29c

  • SHA256

    b30dfb8608adf0c39754145ed1e8e8cf391ef1a5cafeb207bdb53dbfe80a4a08

  • SHA512

    1e65d28aad644fc791a01eb55d3dc53d6f5c63c5fb5c9e52c96c384b5109499364a0ca433e09383972419b02e53662f15f9d238c4313aeb6842a4057be9429f3

  • SSDEEP

    98304:i1NGlQS2DA5FlCPfvJj2wmfXWjY9sz985D:i1N+QXAHlohyP/WsA98B

Score
9/10
evasionthemidatrojan

Malware Config

Targets

    • Target

      NeptnExternalFree.exe

    • Size

      3.4MB

    • MD5

      bbedbbb87552cceb179e196588684cbc

    • SHA1

      d1b7d2834140f503d7a7b92df30fadece473c29c

    • SHA256

      b30dfb8608adf0c39754145ed1e8e8cf391ef1a5cafeb207bdb53dbfe80a4a08

    • SHA512

      1e65d28aad644fc791a01eb55d3dc53d6f5c63c5fb5c9e52c96c384b5109499364a0ca433e09383972419b02e53662f15f9d238c4313aeb6842a4057be9429f3

    • SSDEEP

      98304:i1NGlQS2DA5FlCPfvJj2wmfXWjY9sz985D:i1N+QXAHlohyP/WsA98B

    Score
    9/10
    evasionthemidatrojan

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

      evasion

    • Downloads MZ/PE file

    • Stops running service(s)

      evasion

    • 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 whether UAC is enabled

      evasiontrojan

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Impair Defenses

1
T1562

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks