Overview

overview

10

Static

static

10

2024-04-26...er.exe

windows7-x64

9

2024-04-26...er.exe

windows10-2004-x64

9

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General

  • Target

    2024-04-26_ff7c71b46c8d0db1be3c8f2397bf1609_cryptolocker

  • Size

    61KB

  • Sample

    240426-3hsqtafc3s

  • MD5

    ff7c71b46c8d0db1be3c8f2397bf1609

  • SHA1

    879e13544844c4c813e045180313bf5147b76393

  • SHA256

    99dd0cccd4d03c7460bdfe03ac4f8204614c235601593645fec1b83a49a63afe

  • SHA512

    5cb1186804afd8ec12aa3667968953af258db64ab0168ba6fddbe808d6ea26c25c6c12143b3698a267adc4a71d5ef3209d183380b89bc9cf6d05a08c5272ec2e

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHNMhm5:1nK6a+qdOOtEvwDpjW

Score
10/10
upx

Malware Config

Targets

    • Target

      2024-04-26_ff7c71b46c8d0db1be3c8f2397bf1609_cryptolocker

    • Size

      61KB

    • MD5

      ff7c71b46c8d0db1be3c8f2397bf1609

    • SHA1

      879e13544844c4c813e045180313bf5147b76393

    • SHA256

      99dd0cccd4d03c7460bdfe03ac4f8204614c235601593645fec1b83a49a63afe

    • SHA512

      5cb1186804afd8ec12aa3667968953af258db64ab0168ba6fddbe808d6ea26c25c6c12143b3698a267adc4a71d5ef3209d183380b89bc9cf6d05a08c5272ec2e

    • SSDEEP

      1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHNMhm5:1nK6a+qdOOtEvwDpjW

    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