Overview

overview

10

Static

static

10

2024-05-22...er.exe

windows7-x64

9

2024-05-22...er.exe

windows10-2004-x64

9

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General

  • Target

    2024-05-22_a07fb3a814698d1d2aac2e85f216f6d6_cryptolocker

  • Size

    55KB

  • Sample

    240522-c7r8gahg72

  • MD5

    a07fb3a814698d1d2aac2e85f216f6d6

  • SHA1

    0a3fb8f3cf80889df45a3776adb45c971892b427

  • SHA256

    02c93346144a41330282f2221eec48f37eb21a08022986a40aa0a06be33022f2

  • SHA512

    271b75953a6ce2e41c5a4ae8caecb813e6270b00e744fc593e560ff6757fd1fa7f1a756f3ff57d69aed5599fe9e09196cf0943800b4c6ae23da99bb4252fdfea

  • SSDEEP

    768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjlu:bP9g/xtCS3Dxx0h

Score
10/10
upx

Malware Config

Targets

    • Target

      2024-05-22_a07fb3a814698d1d2aac2e85f216f6d6_cryptolocker

    • Size

      55KB

    • MD5

      a07fb3a814698d1d2aac2e85f216f6d6

    • SHA1

      0a3fb8f3cf80889df45a3776adb45c971892b427

    • SHA256

      02c93346144a41330282f2221eec48f37eb21a08022986a40aa0a06be33022f2

    • SHA512

      271b75953a6ce2e41c5a4ae8caecb813e6270b00e744fc593e560ff6757fd1fa7f1a756f3ff57d69aed5599fe9e09196cf0943800b4c6ae23da99bb4252fdfea

    • SSDEEP

      768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjlu:bP9g/xtCS3Dxx0h

    Score
    9/10
    upx

    • Detection of CryptoLocker Variants

    • UPX dump on OEP (original entry point)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks