d3ba497ce73ef2c512bd1962955e1868cc4b31872926914c078b717fce621c5b

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2024, 03:57

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General

Target

2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe
Size

38KB
MD5

899f3ceff1bd844b1424024d7d3124ba
SHA1

d9e4996008e7d7c1dee6707263d1bc2f73d47ba7
SHA256

d3ba497ce73ef2c512bd1962955e1868cc4b31872926914c078b717fce621c5b
SHA512

c6e8c6b08f84a25e40f878fa50b123fb557f3fce6812052d718236fae3ab82212115727dc5288e49192a7e40250cf4cc5380d0f66d0e5477a4bccc377dab4a2b
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyHmYvV8Z3:btB9g/WItCSsAGjX7e9N0hunRvGIV8Z3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000235f4-12.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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2952	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 4616 wrote to memory of 2952	4616	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe	89
PID 4616 wrote to memory of 2952	4616	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe	89
PID 4616 wrote to memory of 2952	4616	2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_899f3ceff1bd844b1424024d7d3124ba_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4616
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  PID:2952

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=4092,i,14221647728265121051,6840906015709541562,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:8
1⤵
PID:3568

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
39KB

MD5
ad5e307bee1403b4ebf78b1ceba6ef5a

SHA1
9dcee4f01a68762f4e345aeefe80cae2910c07ed

SHA256
4b859fa26e7179208963dbe4cd55800a7ebd67651e697bf7b7c4af0270ad8f07

SHA512
3160f5f7f5fa379d3be38659932aaca4bfa639e31f05a2adad1e1cb11e2e1c7f68a4c3b3b0b858c58187f259bb08dc8868ac42bc7da01093eb5f7c85b87c3066

Download Submit
memory/2952-25-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4616-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4616-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4616-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download