Overview

overview

10

Static

static

10

2024-05-23...er.exe

windows7-x64

9

2024-05-23...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    11s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 04:02

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General

  • Target

    2024-05-23_fada75264041135ca2259ed5ef364e16_cryptolocker.exe

  • Size

    31KB

  • MD5

    fada75264041135ca2259ed5ef364e16

  • SHA1

    653a0a297b7a3a0ca1f5263f0771090687d869bd

  • SHA256

    e52e8b17adaf6ce092801dedc45dc331dd67a3c312aa9904c253f356f47fd1d2

  • SHA512

    e086d9d4e26f747ea3239c97a906c0b5d8b3ac156876151f4d090f8e9d2a3e672687d539ef3ac392c96e688722449e825603f41297c040236db9eeef2bf814ff

  • SSDEEP

    384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zznum+U8Ss87vhN:b/yC4GyNM01GuQMNXum+NSnN

Score
9/10
discovery

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

    discovery
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-23_fada75264041135ca2259ed5ef364e16_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_fada75264041135ca2259ed5ef364e16_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1876
    • C:\Users\Admin\AppData\Local\Temp\retln.exe
      "C:\Users\Admin\AppData\Local\Temp\retln.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2056

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1
T1046

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\retln.exe
    Filesize

    31KB

    MD5

    ab2aa4c11872ef2cec1e0e74e2198441

    SHA1

    f64b01fc73c11460d306d8152696eddcc1452592

    SHA256

    9e8539c21f75c74dafdd2edf1f87b544ba2bdb803a9b882045be66c6f0c8fa2f

    SHA512

    106298da455b5cc3fc0e668ff2a7f0580fe78ec5a83b40f845f92cf1f635d5417ac523648e73625a4a252763189032dc8ce63b84e9ddb09a288cc6ed558e0ae2

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  • memory/1876-1-0x0000000000400000-0x0000000000406000-memory.dmp
    Filesize

    24KB

    Download
  • memory/1876-0-0x0000000000380000-0x0000000000386000-memory.dmp
    Filesize

    24KB

    Download
  • memory/1876-8-0x0000000000380000-0x0000000000386000-memory.dmp
    Filesize

    24KB

    Download
  • memory/2056-23-0x0000000000290000-0x0000000000296000-memory.dmp
    Filesize

    24KB

    Download