Overview

overview

10

Static

static

a3a1f1bee1...64.exe

windows7-x64

10

a3a1f1bee1...64.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a3a1f1bee14b0e117ca9698ca7d4a964.exe

  • Size

    2.7MB

  • Sample

    230201-r5vyxaca71

  • MD5

    a3a1f1bee14b0e117ca9698ca7d4a964

  • SHA1

    c69838ade96ae8c914093516975929b84a86f098

  • SHA256

    e5a5e82935acb5bf1706cd0e04a9bee5b0d995c4bf19ee3c363ceb9e6855ecab

  • SHA512

    deaba5ffd966efaaabb864ac5886ebbb1c45f5286fb9a1897338d6fb6dcd733cd2f76ac769ca6795d3f7d1122c349879a339de1f8af9391853f3e2d448950773

  • SSDEEP

    49152:dKfd3LCcCAwvevqw6m4OHoP45KBNu20Rt3CNuiO:ed3m06m4OIP45wN10Ro+

Score
10/10
purecrypterdownloaderloaderpersistence

Malware Config

Targets

    • Target

      a3a1f1bee14b0e117ca9698ca7d4a964.exe

    • Size

      2.7MB

    • MD5

      a3a1f1bee14b0e117ca9698ca7d4a964

    • SHA1

      c69838ade96ae8c914093516975929b84a86f098

    • SHA256

      e5a5e82935acb5bf1706cd0e04a9bee5b0d995c4bf19ee3c363ceb9e6855ecab

    • SHA512

      deaba5ffd966efaaabb864ac5886ebbb1c45f5286fb9a1897338d6fb6dcd733cd2f76ac769ca6795d3f7d1122c349879a339de1f8af9391853f3e2d448950773

    • SSDEEP

      49152:dKfd3LCcCAwvevqw6m4OHoP45KBNu20Rt3CNuiO:ed3m06m4OIP45wN10Ro+

    Score
    10/10
    purecrypterdownloaderloaderpersistence

    • Detect PureCrypter injector

      loader

    • Modifies WinLogon for persistence

      persistence

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

      loaderdownloaderpurecrypter

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks