Overview

overview

10

Static

static

10

2024-05-23...er.exe

windows7-x64

9

2024-05-23...er.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    2024-05-23_cfff8ff2f822f99920d97ae94a8d3e87_cryptolocker

  • Size

    40KB

  • Sample

    240523-a89g2aff65

  • MD5

    cfff8ff2f822f99920d97ae94a8d3e87

  • SHA1

    37df2aa4d6d2caebfa443cf61f6db7628f3a916d

  • SHA256

    ae0c031d2ef7fc3d45398c0f06731471f87b9dfe18be8cd7f5ebde550c9f09cb

  • SHA512

    b83e5fa125523d571fb33fcf20e618b1a1d02a827bc7176b6df325f6c91742479f43523e09dc374a838db5cdfc93b2825b5e8a8b160c8f87fc2f59189598ba6b

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaBcF:qDdFJy3QMOtEvwDpjjWMl7Td+

Score
10/10
upx

Malware Config

Targets

    • Target

      2024-05-23_cfff8ff2f822f99920d97ae94a8d3e87_cryptolocker

    • Size

      40KB

    • MD5

      cfff8ff2f822f99920d97ae94a8d3e87

    • SHA1

      37df2aa4d6d2caebfa443cf61f6db7628f3a916d

    • SHA256

      ae0c031d2ef7fc3d45398c0f06731471f87b9dfe18be8cd7f5ebde550c9f09cb

    • SHA512

      b83e5fa125523d571fb33fcf20e618b1a1d02a827bc7176b6df325f6c91742479f43523e09dc374a838db5cdfc93b2825b5e8a8b160c8f87fc2f59189598ba6b

    • SSDEEP

      768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaBcF:qDdFJy3QMOtEvwDpjjWMl7Td+

    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