6e5035dfa361e9141bc5f4056029d44641bde905c930ed1c36d41fbc82f18023

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
21/04/2024, 07:31

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General

Target

2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe
Size

84KB
MD5

6aef214bc091152a20e102dd81259ca2
SHA1

76cf533ea46c58df6d8ae3487dbdcf5d18c9f06d
SHA256

6e5035dfa361e9141bc5f4056029d44641bde905c930ed1c36d41fbc82f18023
SHA512

df518998ac10fd5e0cf6a7ca4bd3b40f47e8b6f06530b25997de6d8165aae1e5638407b791c76082ba4b281f5e0fef6f8b8edb2cd128aa39a70979a9291b6755
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnYZ:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000022f7b-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000022f7b-12.dat	CryptoLocker_set1

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	2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3280	asih.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 4744 wrote to memory of 3280	4744	2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe	90
PID 4744 wrote to memory of 3280	4744	2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe	90
PID 4744 wrote to memory of 3280	4744	2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3280

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=2200 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8
1⤵
PID:4572

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\asih.exe

Filesize
85KB

MD5
29e73636708ffeafc0bf62ff5b7cee7c

SHA1
58503f8e8e11c84e7647ea4285101be9a196fb96

SHA256
8de3f18b4682eea0e939821f2d4f80bf2714abcb977088edc97e328673d2ee92

SHA512
179f4c814c8b5e4d7dd14244eb70bb4de56220dceea82c7edd714cce10f70765b7638167015aa2b6c2816bc5c22ee4322d660e8aa89c09480e3bac5972608af9

Download Submit
memory/3280-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3280-20-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4744-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4744-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4744-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download