0984d523b7e9d5d5eee74fad5cb567e50844481dcce1c7808b4a111bd15c6452

Analysis

max time kernel
0s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 05:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-06_9b1af847dba5ce7e7b071c196c28b6f7_cryptolocker.exe
Size

48KB
MD5

9b1af847dba5ce7e7b071c196c28b6f7
SHA1

ce13441e15586dda67ed6b0e5b411731ed6affeb
SHA256

0984d523b7e9d5d5eee74fad5cb567e50844481dcce1c7808b4a111bd15c6452
SHA512

b6298f0a6dd2d58c66fbbd837b9cf9b073fc5dd6f5a19429117c24b42e31bcbcc18ed66b9e1ebc87db1bcab91b31f79cc7147d5c0524db87fa88175889ae6304
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9UnuDLlD+z:bIDOw9a0Dwo3P1ojvUSD4PInyDi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000022fa8-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-06-06_9b1af847dba5ce7e7b071c196c28b6f7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4100	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 3884 wrote to memory of 4100	3884	2024-06-06_9b1af847dba5ce7e7b071c196c28b6f7_cryptolocker.exe	83
PID 3884 wrote to memory of 4100	3884	2024-06-06_9b1af847dba5ce7e7b071c196c28b6f7_cryptolocker.exe	83
PID 3884 wrote to memory of 4100	3884	2024-06-06_9b1af847dba5ce7e7b071c196c28b6f7_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-06_9b1af847dba5ce7e7b071c196c28b6f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_9b1af847dba5ce7e7b071c196c28b6f7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3884
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:4100

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
48KB

MD5
1ba3e3a2b93756a305f63156f7e58cb7

SHA1
df23f446ae3960221d09ec859f97e3583bac187e

SHA256
26e8cd04d8a88af225128319695fd4cfb4c9795f78fdd9592b6cf97c4b7a73b5

SHA512
faa141f9281d42de4b0449e229a10c9f259649ff725107af42943d2f4948ad7492f7536ae4d454ee27a256c683924ca446ea3f588764b89e7f252aff4c1a17a0

Download Submit
memory/3884-0-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3884-8-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3884-1-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4100-18-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4100-17-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download