7bbe95364f9e0cde34aa43a22f8bd74983bda83c58dd375c974fe43b7eb9ed4d

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 07:37

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General

Target

2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe
Size

46KB
MD5

7cd36f03d5d6243541629bc6d70a179a
SHA1

2b5df527a75e885eaef46f1a0efa2fc3da228037
SHA256

7bbe95364f9e0cde34aa43a22f8bd74983bda83c58dd375c974fe43b7eb9ed4d
SHA512

3ab5ccc04f9f85b935db8983189a858609bfafc41227242c153b5b7d1d648d56718764dd3d900e8d92984b387ee04e7322edb96f2a1b3322eabf5764e6bb2ece
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsi7:V6QFElP6n+gMQMOtEvwDpjyaYaFAh397

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023540-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023540-12.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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4672	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 3124 wrote to memory of 4672	3124	2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe	90
PID 3124 wrote to memory of 4672	3124	2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe	90
PID 3124 wrote to memory of 4672	3124	2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4672

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 --field-trial-handle=3980,i,13281073920029625837,8253721632651544158,262144 --variations-seed-version --mojo-platform-channel-handle=4488 /prefetch:8
1⤵
PID:3140

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
47KB

MD5
38fd2b9ac207ecc9699dc49c1306abdf

SHA1
e1506b4a0838122e54e90ad5c94b32e05b040e0a

SHA256
b43ebf788a89eacc20016d6a289e528fbc3b7bd0813fb73d99942676b22989e7

SHA512
e0467eaf158b0698489eba5fa8b9c68453a7b332d8476a823f52952db0df0304d110da50c9ed957e609e20c4ab1408974d0e727e3d0033bab7012d9bf71abae0

Download Submit
memory/3124-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3124-1-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3124-8-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4672-17-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/4672-23-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download