ed07abf6c48e1e4972d7a05a8b91f32f8d23170863f0e1db15016c13211062a1

Analysis

max time kernel
147s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
19-03-2024 21:23

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General

Target

2024-03-19_01bae834316b61a55bfc55ea15611e99_cryptolocker.exe
Size

40KB
MD5

01bae834316b61a55bfc55ea15611e99
SHA1

4af1e99574b3cd5465ec443f1fe2679f265d09ac
SHA256

ed07abf6c48e1e4972d7a05a8b91f32f8d23170863f0e1db15016c13211062a1
SHA512

35fbf3374fd620d020e295b3a90320ad4864f707012bee51b29c993f4e91039bee83a7b9f6e6fab17dd1a642a837c0f9609ecc971870d96885cbf99bd84f462f
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66q:vj+jsMQMOtEvwDpj5HW5B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002332c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002332c-12.dat	CryptoLocker_set1

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-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation	2024-03-19_01bae834316b61a55bfc55ea15611e99_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	misid.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 4060 wrote to memory of 2744	4060	2024-03-19_01bae834316b61a55bfc55ea15611e99_cryptolocker.exe	86
PID 4060 wrote to memory of 2744	4060	2024-03-19_01bae834316b61a55bfc55ea15611e99_cryptolocker.exe	86
PID 4060 wrote to memory of 2744	4060	2024-03-19_01bae834316b61a55bfc55ea15611e99_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-03-19_01bae834316b61a55bfc55ea15611e99_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_01bae834316b61a55bfc55ea15611e99_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2744

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=3860 --field-trial-handle=2264,i,7994609493164365963,13212734413040148104,262144 --variations-seed-version /prefetch:8
1⤵
PID:4056

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\misid.exe

Filesize
40KB

MD5
37a5af92eab9586c4b8a868b5a1edcaa

SHA1
bf424845d04273fb19f55020d213a6c455cbe16a

SHA256
86d9dd913d42da468c3f6a42fdeab2333cf0d62341a7178de91c64ff1971e554

SHA512
3258adaaac81d9ad9a6170d99782e8839255ae04874918574ff98288a85a5058a107d4708bb0d9843456d11f77d2e33f9e194e21f04aee20386175e8955dc399

Download Submit
memory/2744-17-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/2744-23-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4060-0-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/4060-1-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/4060-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download