cdb1fb1bebf2676ef61ee2da70c1d65061ee73839ff6e883e85eb99ca14cf496

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 15:31

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General

Target

2024-03-11_188c261054604cff32d82eb39101b0fc_cryptolocker.exe
Size

48KB
MD5

188c261054604cff32d82eb39101b0fc
SHA1

8edb5ab16920c5f75a8d9a0f2c8285b4bb47787a
SHA256

cdb1fb1bebf2676ef61ee2da70c1d65061ee73839ff6e883e85eb99ca14cf496
SHA512

856d772f82c5c5a60b74ff1b8ab89f421cb2b41b30a38f463b2da8cf7660772d950c795ce10f8e1e5124828275c855c36b067ff69e9891406f52327869d944f3
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld2hJT:bgGYcA/53GAA6y37Q6dI+d2b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023270-12.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-11_188c261054604cff32d82eb39101b0fc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3884	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 1204 wrote to memory of 3884	1204	2024-03-11_188c261054604cff32d82eb39101b0fc_cryptolocker.exe	102
PID 1204 wrote to memory of 3884	1204	2024-03-11_188c261054604cff32d82eb39101b0fc_cryptolocker.exe	102
PID 1204 wrote to memory of 3884	1204	2024-03-11_188c261054604cff32d82eb39101b0fc_cryptolocker.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-03-11_188c261054604cff32d82eb39101b0fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_188c261054604cff32d82eb39101b0fc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3884

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=3996 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:1492

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
48KB

MD5
5ddf014b45b10d43627a07089986276a

SHA1
e64a8e1c019c3913f896bfeea7a8ae11ad0fc9d2

SHA256
20c5350b3cf04481707c9afb47f1215ed071e85c59ecd350a15349e6883023cb

SHA512
3e5cb6313e7b57d6e3882d80b576ce863860958118a1f080402584f7f92162aab03f43e83a1c0106e23575682139e1d7b5a5f4da730bca595b6eb0fbf4c96a5e

Download Submit
memory/1204-0-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/1204-1-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/1204-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3884-17-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3884-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download