Overview

overview

10

Static

static

10

2024-02-12...er.exe

windows7-x64

9

2024-02-12...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    17s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    12-02-2024 19:57

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    2024-02-12_4b68ecab026c808b7b5336afa90fd5dd_cryptolocker.exe

  • Size

    40KB

  • MD5

    4b68ecab026c808b7b5336afa90fd5dd

  • SHA1

    d792149cb5acdb82ffaa9b98037f59034dcf8a8e

  • SHA256

    6dca2b7a8043247095ac7d05b4d8ba65defba73ff9939f0f1a54685dbcdca96d

  • SHA512

    4723b1212ea17f4110b5200b41f15862113561b94a2d01f5121badbfbd07e2f02bb65e6a3964998461cdd690247924e6bd811dd269e20ff5c431d514ad608fda

  • SSDEEP

    768:b/yC4GyNM01GuQMNXw2PSjHPbSuYlW8PAA:b/pYayGig5HjS3NPAA

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\2024-02-12_4b68ecab026c808b7b5336afa90fd5dd_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-12_4b68ecab026c808b7b5336afa90fd5dd_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2868
    • 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:3024

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

Loading Replay Monitor...

Downloads

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

    41KB

    MD5

    5b9869c1e89ac2966443163456f48e12

    SHA1

    42aa8649fcfa09a74722c8f725e404bae837cfe0

    SHA256

    160bad443607b4035a6394ae141e49b0f241dd21e32da913bca2400ee3f83aa7

    SHA512

    bbc158182cfd7892d8abd018498b050393b29987f4d147710877f0ca8796567d4004bf6c16f8a6e6360766b1675d61267013d2cc2896dff2796644a4c8ec9ee7

    Download Submit
  • memory/2868-0-0x0000000000210000-0x0000000000216000-memory.dmp
    Filesize

    24KB

    Download
  • memory/2868-1-0x0000000000400000-0x0000000000406000-memory.dmp
    Filesize

    24KB

    Download
  • memory/2868-8-0x0000000000210000-0x0000000000216000-memory.dmp
    Filesize

    24KB

    Download
  • memory/3024-23-0x00000000003F0000-0x00000000003F6000-memory.dmp
    Filesize

    24KB

    Download