bd11954004f55f07e910931d0e94503d033789244b7496b90204196d7b9a65ac

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/05/2024, 00:41

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General

Target

2024-05-25_65dadadb8ad6f4817eca90dcb827c8ac_cryptolocker.exe
Size

43KB
MD5

65dadadb8ad6f4817eca90dcb827c8ac
SHA1

dc3f4469e90c68566a8d1962e65e67bb89b74566
SHA256

bd11954004f55f07e910931d0e94503d033789244b7496b90204196d7b9a65ac
SHA512

ab7c1c193809df9dbb5da5302feb86d068a657d6f42656e2318244938c6e079d525ccdc3a55b60909003ea3ae6e464857e68d2b4a200b8fc3d04ae28d15ed312
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3fz:bIDOw9a0Dwo3P1ojvUSD79RL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x001000000002323e-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	2024-05-25_65dadadb8ad6f4817eca90dcb827c8ac_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2920	lossy.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 1804 wrote to memory of 2920	1804	2024-05-25_65dadadb8ad6f4817eca90dcb827c8ac_cryptolocker.exe	91
PID 1804 wrote to memory of 2920	1804	2024-05-25_65dadadb8ad6f4817eca90dcb827c8ac_cryptolocker.exe	91
PID 1804 wrote to memory of 2920	1804	2024-05-25_65dadadb8ad6f4817eca90dcb827c8ac_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-05-25_65dadadb8ad6f4817eca90dcb827c8ac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_65dadadb8ad6f4817eca90dcb827c8ac_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2920

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=3976 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
1⤵
PID:2520

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\lossy.exe

Filesize
43KB

MD5
a386d31826ed575b585fe402d0978efb

SHA1
f5fe2c85a7f9222e2d743c64473e15cf5914e405

SHA256
3505a3726342ff6c99629f4b0162a213a1e0852b3a13ad8c5a600238c4094621

SHA512
f699f3f1d4bc35d7f76694cfb9cdf48756300183ad59dc4e9ed311caa600da13cd940db1aa26ae6954a00b21207ec4d5c620acd1416afa3e1cf29a9300c1b04c

Download Submit
memory/1804-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1804-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1804-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/2920-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2920-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download