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_06018f2b5fe00b5ffe5b259add2a7a3c_cryptolocker

  • Size

    91KB

  • Sample

    240523-ctw99saf45

  • MD5

    06018f2b5fe00b5ffe5b259add2a7a3c

  • SHA1

    f3b31481c42af2974fdccf83a47ade306a988993

  • SHA256

    d3b9e693480b2d2483cde9c395f4834ba020a39b2801174b0edb34b18b6ff937

  • SHA512

    86ca04fe5edb7a74ffdbb0eb352dfab7895a3abbbf779d8aa3226c55827197f49cf610fa7bb07525cc5f6fba8bab0ad0fdc720bfef5c5ad9d4ee92a8893fd26e

  • SSDEEP

    1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/D3:n6a+1SEOtEvwDpjYYvQd2P0

Score
10/10
upx

Malware Config

Targets

    • Target

      2024-05-23_06018f2b5fe00b5ffe5b259add2a7a3c_cryptolocker

    • Size

      91KB

    • MD5

      06018f2b5fe00b5ffe5b259add2a7a3c

    • SHA1

      f3b31481c42af2974fdccf83a47ade306a988993

    • SHA256

      d3b9e693480b2d2483cde9c395f4834ba020a39b2801174b0edb34b18b6ff937

    • SHA512

      86ca04fe5edb7a74ffdbb0eb352dfab7895a3abbbf779d8aa3226c55827197f49cf610fa7bb07525cc5f6fba8bab0ad0fdc720bfef5c5ad9d4ee92a8893fd26e

    • SSDEEP

      1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/D3:n6a+1SEOtEvwDpjYYvQd2P0

    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

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks