Overview

overview

10

Static

static

10

74bcb753f4...4e.exe

windows7-x64

10

74bcb753f4...4e.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    74bcb753f4da68f4147e2d78753f0b229787a62b8c998c9d3c893599413f5c4e

  • Size

    1.1MB

  • Sample

    240522-bhy42sfe73

  • MD5

    56e31b6e96239c162131733f6118c8e2

  • SHA1

    9fd012f3120dffcfecf22f01bc01cdd73fbe0b05

  • SHA256

    74bcb753f4da68f4147e2d78753f0b229787a62b8c998c9d3c893599413f5c4e

  • SHA512

    b367d8a0ede24061b46433fa81a49f4a4a97806d1baa261476566916ad87137529c6830716cf83643f22715e1c73f9cdbe3a2b99eb9e9a633c0a34783f50f938

  • SSDEEP

    24576:dMMpXS0hN0V0HiS3WSrD5PDZb7oWo0KB/Ay+aZK:Gwi0L0qX3drD5PtnoPB/t+aZK

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      74bcb753f4da68f4147e2d78753f0b229787a62b8c998c9d3c893599413f5c4e

    • Size

      1.1MB

    • MD5

      56e31b6e96239c162131733f6118c8e2

    • SHA1

      9fd012f3120dffcfecf22f01bc01cdd73fbe0b05

    • SHA256

      74bcb753f4da68f4147e2d78753f0b229787a62b8c998c9d3c893599413f5c4e

    • SHA512

      b367d8a0ede24061b46433fa81a49f4a4a97806d1baa261476566916ad87137529c6830716cf83643f22715e1c73f9cdbe3a2b99eb9e9a633c0a34783f50f938

    • SSDEEP

      24576:dMMpXS0hN0V0HiS3WSrD5PDZb7oWo0KB/Ay+aZK:Gwi0L0qX3drD5PtnoPB/t+aZK

    Score
    10/10
    aspackv2persistenceransomware

    • Modifies WinLogon for persistence

      persistence

    • Detects executables packed with ASPack

    • Renames multiple (91) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks