Overview

overview

10

Static

static

10

2024-05-23...er.exe

windows7-x64

9

2024-05-23...er.exe

windows10-2004-x64

9

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General

  • Target

    2024-05-23_35a2e54986fb3441cc9e60399f592bab_cryptolocker

  • Size

    81KB

  • Sample

    240523-cxqa5aae7w

  • MD5

    35a2e54986fb3441cc9e60399f592bab

  • SHA1

    4136080a80d6f45c2ec773b23b6c7cd2b9afee3f

  • SHA256

    48b54903b620ebd27ac168f11b21b3917805535535c68d47276a05bdcc077e2b

  • SHA512

    5c91bff4d5fca935840a8c49c0b3192d6f50428f238957eb26a49415bb5a49b02f6ca31e94c4a143e128310a55d19cc51ef9c4d301532bbbb866f702eebdfc19

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7QpSxZ:zCsanOtEvwDpj0

Score
10/10
upx

Malware Config

Targets

    • Target

      2024-05-23_35a2e54986fb3441cc9e60399f592bab_cryptolocker

    • Size

      81KB

    • MD5

      35a2e54986fb3441cc9e60399f592bab

    • SHA1

      4136080a80d6f45c2ec773b23b6c7cd2b9afee3f

    • SHA256

      48b54903b620ebd27ac168f11b21b3917805535535c68d47276a05bdcc077e2b

    • SHA512

      5c91bff4d5fca935840a8c49c0b3192d6f50428f238957eb26a49415bb5a49b02f6ca31e94c4a143e128310a55d19cc51ef9c4d301532bbbb866f702eebdfc19

    • SSDEEP

      1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7QpSxZ:zCsanOtEvwDpj0

    Score
    9/10
    upx

    • Detection of CryptoLocker Variants

    • Detection of Cryptolocker Samples

    • 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

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks