172e0e19d11945dc74b6a9e86c1f780c36a734baefef8b1d9fcc7dcd0094e102

Analysis

max time kernel
143s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/04/2024, 00:49

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General

Target

2024-04-25_546963be6711bbbbd5e0000766a7fcbf_cryptolocker.exe
Size

34KB
MD5

546963be6711bbbbd5e0000766a7fcbf
SHA1

1b48264243047b0e6c3f1a349e773fc487b2220f
SHA256

172e0e19d11945dc74b6a9e86c1f780c36a734baefef8b1d9fcc7dcd0094e102
SHA512

77f422da015adab6b621cdb28df9c52a9d86d8b3bceb07a50f49293d1c825b00fb0caadae76524fa8b416d1ae48c2693c2f617b5a748995b898558ebc4bf0fbf
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunvsY0j:bA74zYcgT/Ekd0ryfjPIunvsrj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002323e-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-04-25_546963be6711bbbbd5e0000766a7fcbf_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2528	hasfj.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 2528	2960	2024-04-25_546963be6711bbbbd5e0000766a7fcbf_cryptolocker.exe	90
PID 2960 wrote to memory of 2528	2960	2024-04-25_546963be6711bbbbd5e0000766a7fcbf_cryptolocker.exe	90
PID 2960 wrote to memory of 2528	2960	2024-04-25_546963be6711bbbbd5e0000766a7fcbf_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-04-25_546963be6711bbbbd5e0000766a7fcbf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_546963be6711bbbbd5e0000766a7fcbf_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2528

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4004 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
1⤵
PID:4148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
34KB

MD5
85eda008449924078d76aecfb3198271

SHA1
a6de38438d42016cbee37598d52103887a5991bd

SHA256
1e0b7a2689e338f09d1e9d935b1a54b6fce2c273815ab3b170229196a7b3a921

SHA512
57e0907db07efd92354bbaec7ee037c5b42fd5dc368cf3014b9621669a023c31cb7a99405608c424c2e76a2fcfa4bd7146809695a9f7eb800913ce99b2d7da9e

Download Submit
memory/2528-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2528-18-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/2960-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2960-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2960-2-0x0000000002400000-0x0000000002406000-memory.dmp

Filesize
24KB

Download