397c7de645377f00495220758be2c9c752912c6bdbcfd5fc895c2e1bfb08e560

Analysis

max time kernel
162s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-03-2024 19:57

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General

Target

2024-03-05_fcae6a4dab61508a7f3d63335b3f378b_cryptolocker.exe
Size

386KB
MD5

fcae6a4dab61508a7f3d63335b3f378b
SHA1

fc11a8b12bb546a1b4bf723d50db1632a6f13a59
SHA256

397c7de645377f00495220758be2c9c752912c6bdbcfd5fc895c2e1bfb08e560
SHA512

41c2866b219943f86038df50177d56984f09de6a79d3eef7ada36724e6cec9cc922f57771da48a885c75d46d2ee9709dff3d19095d8ffd96bcdad85a9e694ca4
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXy:nnOflT/ZFIjBz3xjTxynGUOUhXy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023257-12.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	2024-03-05_fcae6a4dab61508a7f3d63335b3f378b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4944	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 4912 wrote to memory of 4944	4912	2024-03-05_fcae6a4dab61508a7f3d63335b3f378b_cryptolocker.exe	98
PID 4912 wrote to memory of 4944	4912	2024-03-05_fcae6a4dab61508a7f3d63335b3f378b_cryptolocker.exe	98
PID 4912 wrote to memory of 4944	4912	2024-03-05_fcae6a4dab61508a7f3d63335b3f378b_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-05_fcae6a4dab61508a7f3d63335b3f378b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_fcae6a4dab61508a7f3d63335b3f378b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4912
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4944

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=3936 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:1808

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
386KB

MD5
7e8528799c6b45b780c82e1ab83f5b65

SHA1
f927ef46f5e1188467c55db092a7f45ecbb7f7e9

SHA256
179ebca2b4eac42bb8b654ddb1313712328ff3dce2bb0d83702516c22f63e951

SHA512
2f79715837115f34e2096c012e5da64d012ab2512d692bc0f662f311066de85711fa4e3a993dd970123cafdc57b4121a0379744ddbb8548aaf89b0ecf1461b87

Download Submit
memory/4912-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4912-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4912-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4944-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4944-19-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download