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_4835275efe7d6a1c433b4dc5ab7a3636_cryptolocker

  • Size

    33KB

  • Sample

    240523-cylz4aaf2v

  • MD5

    4835275efe7d6a1c433b4dc5ab7a3636

  • SHA1

    ba1362861bc7184dab7e21c2d59b1cf295bca118

  • SHA256

    44755ecc736dc068d712388a28cc962d2416ad69ba9a5291f8ad44d1a4daa1b0

  • SHA512

    0ed12a41f7ff6382ea250ec8f419321349eec2457d5a4a54932005d4aa37d032ebea2224932891defa07d46ae877323f0b7bafb313c6eb67901d4b58eb789ecc

  • SSDEEP

    768:bFPm5zusFUB2preAr+Ofjg0S16avdrQFiLjJvtXm:bFPmpiif/oc+vXm

Score
10/10
upx

Malware Config

Targets

    • Target

      2024-05-23_4835275efe7d6a1c433b4dc5ab7a3636_cryptolocker

    • Size

      33KB

    • MD5

      4835275efe7d6a1c433b4dc5ab7a3636

    • SHA1

      ba1362861bc7184dab7e21c2d59b1cf295bca118

    • SHA256

      44755ecc736dc068d712388a28cc962d2416ad69ba9a5291f8ad44d1a4daa1b0

    • SHA512

      0ed12a41f7ff6382ea250ec8f419321349eec2457d5a4a54932005d4aa37d032ebea2224932891defa07d46ae877323f0b7bafb313c6eb67901d4b58eb789ecc

    • SSDEEP

      768:bFPm5zusFUB2preAr+Ofjg0S16avdrQFiLjJvtXm:bFPmpiif/oc+vXm

    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