f36da05cbfe4b17d97ed63b5a716a691e3b086af8323026dfbd976e3512b6e00

Analysis

max time kernel
142s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
02/05/2024, 15:28

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General

Target

2024-05-02_cd5690044c2c0eff0d0073cdf751e282_cryptolocker.exe
Size

85KB
MD5

cd5690044c2c0eff0d0073cdf751e282
SHA1

de20c35dc718ca630e27f396738fbb652921d166
SHA256

f36da05cbfe4b17d97ed63b5a716a691e3b086af8323026dfbd976e3512b6e00
SHA512

8c7b2e9d212173b2d07fe369c25beda4b8928353537d68b216f8d075eeccf416608e99c18d4b88630130faa7ea4238560100f2b141a430a86c3e16035131fbdd
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnY4:V6QFElP6n+gMQMOtEvwDpjyaLccVNl64

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023225-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023225-12.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	2024-05-02_cd5690044c2c0eff0d0073cdf751e282_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1412	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 2412 wrote to memory of 1412	2412	2024-05-02_cd5690044c2c0eff0d0073cdf751e282_cryptolocker.exe	92
PID 2412 wrote to memory of 1412	2412	2024-05-02_cd5690044c2c0eff0d0073cdf751e282_cryptolocker.exe	92
PID 2412 wrote to memory of 1412	2412	2024-05-02_cd5690044c2c0eff0d0073cdf751e282_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-05-02_cd5690044c2c0eff0d0073cdf751e282_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-02_cd5690044c2c0eff0d0073cdf751e282_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1412

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=4120 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
1⤵
PID:2764

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
9ec62a2767e35067c32f9d4ad435dd01

SHA1
c58c3fd810fd2e562d7e7ba193834424acc2d443

SHA256
147e4b3785be20ae47c1388e8f1b4751a1139663176e0787279d484bd4d6406f

SHA512
28fa38925248955ff06c6f253e77ba5d646c391d9a65689c11194181b1ee8e72bc2bc65d6ae772a3b12a0575cda7c3728b2a5fc391b10039459ceeb8062610b5

Download Submit
memory/1412-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1412-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2412-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2412-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2412-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download