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_11615aae212a57fccd1618f26eda33a9_cryptolocker

  • Size

    38KB

  • Sample

    240523-cvcl9aad7s

  • MD5

    11615aae212a57fccd1618f26eda33a9

  • SHA1

    1c5a5d21d810f760494c1c99b4b80d394cb6ae04

  • SHA256

    a6e1845f3497b83dc5ef327943996f40ad295a2dc11e7beb0742364d1f6c4d75

  • SHA512

    4a766494a41cad26e91cce186acdd590e00729cca2bee5f3f1e908136885e3e382c3a2dab43e39cf45c16d9d6d7b265f92779e55b23c2681d0f24f84c032f200

  • SSDEEP

    768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5axK38nk:qUmnpomddpMOtEvwDpjjaYaQ8k

Score
10/10
upx

Malware Config

Targets

    • Target

      2024-05-23_11615aae212a57fccd1618f26eda33a9_cryptolocker

    • Size

      38KB

    • MD5

      11615aae212a57fccd1618f26eda33a9

    • SHA1

      1c5a5d21d810f760494c1c99b4b80d394cb6ae04

    • SHA256

      a6e1845f3497b83dc5ef327943996f40ad295a2dc11e7beb0742364d1f6c4d75

    • SHA512

      4a766494a41cad26e91cce186acdd590e00729cca2bee5f3f1e908136885e3e382c3a2dab43e39cf45c16d9d6d7b265f92779e55b23c2681d0f24f84c032f200

    • SSDEEP

      768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5axK38nk:qUmnpomddpMOtEvwDpjjaYaQ8k

    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