4119b20c3b20fc4681e6bd8ce17b50589957d2f17840090003bc7174f9bdd040

Analysis

max time kernel
150s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 20:20

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General

Target

2024-03-08_98ee7b1cacce228dbdd293cc97f59ba5_cryptolocker.exe
Size

47KB
MD5

98ee7b1cacce228dbdd293cc97f59ba5
SHA1

36aef7b3ff47c0affc499aeeefee3180b09eeb57
SHA256

4119b20c3b20fc4681e6bd8ce17b50589957d2f17840090003bc7174f9bdd040
SHA512

ef8a21c7a344a55b1559b7ec8004b66c61920269241acefd2800e9e7bd7a01845dfdbb90ae7dc7590cce6b8a86d883fe5e47b68f51c6e74a3498954fe6a71de1
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/h4:bgGYcA/53GAA6y37nb4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023322-12.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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2024-03-08_98ee7b1cacce228dbdd293cc97f59ba5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1100	hasfj.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 4124 wrote to memory of 1100	4124	2024-03-08_98ee7b1cacce228dbdd293cc97f59ba5_cryptolocker.exe	96
PID 4124 wrote to memory of 1100	4124	2024-03-08_98ee7b1cacce228dbdd293cc97f59ba5_cryptolocker.exe	96
PID 4124 wrote to memory of 1100	4124	2024-03-08_98ee7b1cacce228dbdd293cc97f59ba5_cryptolocker.exe	96

C:\Users\Admin\AppData\Local\Temp\2024-03-08_98ee7b1cacce228dbdd293cc97f59ba5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_98ee7b1cacce228dbdd293cc97f59ba5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4124
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1100

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=4008 --field-trial-handle=3044,i,17059189006398306756,4247826696353232857,262144 --variations-seed-version /prefetch:8
1⤵
PID:3160

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\hasfj.exe

Filesize
47KB

MD5
c486d6e291553fadd44ac5dbe2b348c6

SHA1
8f3029c37715cc6c974013fd97769cf0f4861584

SHA256
93c06d349dd9c088c13b6e105e4048a003ab7498b5001d76ca641d5dce1a321e

SHA512
0ea3901512ece8437b4d175430dcb6c0faa2b0e598064a6e278c4b2a49c8691cf80b5af3d0c6140a2c0affce517c0d8261ff02a61a26eba80d3db9307b6d3ade

Download Submit
memory/1100-17-0x0000000002270000-0x0000000002276000-memory.dmp

Filesize
24KB

Download
memory/1100-18-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4124-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4124-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4124-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download