c007da949c3fb75ebc64dc5f1845a98fad80220a0ce7522a345b3cb25bc6bb32

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12-05-2024 05:27

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General

Target

2024-05-12_61870e78e62a15111cdc239bae6a3b92_cryptolocker.exe
Size

51KB
MD5

61870e78e62a15111cdc239bae6a3b92
SHA1

faf234bfba6b93693fa891824b92e5595d07ae2a
SHA256

c007da949c3fb75ebc64dc5f1845a98fad80220a0ce7522a345b3cb25bc6bb32
SHA512

24c6c0ee537030b84af22f7f3aaafd0220713f6de417c57321c32c9c7a2569d6db59e013f41ae7b921f60a749121fb497b288fafece07f12e7293aaa122e7acb
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZp8o:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000235bb-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000235bb-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	2024-05-12_61870e78e62a15111cdc239bae6a3b92_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3968	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 4508 wrote to memory of 3968	4508	2024-05-12_61870e78e62a15111cdc239bae6a3b92_cryptolocker.exe	89
PID 4508 wrote to memory of 3968	4508	2024-05-12_61870e78e62a15111cdc239bae6a3b92_cryptolocker.exe	89
PID 4508 wrote to memory of 3968	4508	2024-05-12_61870e78e62a15111cdc239bae6a3b92_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-05-12_61870e78e62a15111cdc239bae6a3b92_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_61870e78e62a15111cdc239bae6a3b92_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3968

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=3804,i,15140928051103392835,1612840580898364401,262144 --variations-seed-version --mojo-platform-channel-handle=4120 /prefetch:8
1⤵
PID:3376

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
51KB

MD5
eece0b9137e2dd6666ae97625495bb72

SHA1
c8ce0529e2526bbbd5612ac1e3e5757e2e506d3d

SHA256
e8b246a3458e4cb5fa8123d65186ef204d97176e27b4ba6e57df0e5d2a10c8c7

SHA512
957dddb38b3a5503c940fad068f8c8a4f37f8aada2f42c768c1b575c091c23296a137bee7b8b0331bd80cda8e59e3a74a74384ca6c222d7b448f5fcb62df81a0

Download Submit
memory/3968-17-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/3968-23-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/4508-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4508-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4508-8-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download