577539a472cff9c914049012b79319002212aac48c556a02eb2b042940c42d5a

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 00:49

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General

Target

2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe
Size

32KB
MD5

ead8c90434a9403000d62d30ed969bce
SHA1

b3c4c24aefa173b9b9a88476dbfcd4bd0319026d
SHA256

577539a472cff9c914049012b79319002212aac48c556a02eb2b042940c42d5a
SHA512

0147b3b04466886b10dcf23843717d09bf67981a92361f759bc122811fe6110c37eb27f5811925c7c60f9a321eee5e5bfedd425f996e7cad8b628e0f8726dfd9
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2BoRjm:btB9g/WItCSsAGjX7r3Bo4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023217-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3592	gewos.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 3200 wrote to memory of 3592	3200	2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe	84
PID 3200 wrote to memory of 3592	3200	2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe	84
PID 3200 wrote to memory of 3592	3200	2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3200
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:3592

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\gewos.exe

Filesize
32KB

MD5
1efccfe886efc07e42341f681a78f282

SHA1
0674b9a2524f8ccf45106c8d231b3f072afd501f

SHA256
f057ca84627a8179cbad49fcfafd12aa7966493286594ba5b2343cbed1aa694e

SHA512
455e1e923dcad7188188ef10f54785b1b21017f958d3255e7651be15dc8fd48ad602555b0f85e6f84fdeadc7521465ca5c2c5c0c6ccdabcf8e83d80fa3c098ad

Download Submit
memory/3200-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3200-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3200-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3592-23-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download