0038b7d77474df2a3a0090d6b5c5731a6e5d598a13682024db5f9928f6accafb

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 19:55

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General

Target

2024-03-15_850018de82e922667407c97cab4d6404_cryptolocker.exe
Size

48KB
MD5

850018de82e922667407c97cab4d6404
SHA1

3093d09031cc11dc27294da800e88df08ca13dbe
SHA256

0038b7d77474df2a3a0090d6b5c5731a6e5d598a13682024db5f9928f6accafb
SHA512

ac22615fc3bdc2e9ba6b07a07043eabb9e5129c8acf8abd2523ece53135b8fb5cab2c1f7e5f9cd88dc6b2d3fce5c5b5a6fc2849446e2e01b742722cebf565663
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvvkB:bgGYcA/53GAA6y37nb4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-15_850018de82e922667407c97cab4d6404_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4456	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 3720 wrote to memory of 4456	3720	2024-03-15_850018de82e922667407c97cab4d6404_cryptolocker.exe	90
PID 3720 wrote to memory of 4456	3720	2024-03-15_850018de82e922667407c97cab4d6404_cryptolocker.exe	90
PID 3720 wrote to memory of 4456	3720	2024-03-15_850018de82e922667407c97cab4d6404_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-15_850018de82e922667407c97cab4d6404_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_850018de82e922667407c97cab4d6404_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4456

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
b6a82d5715538d47f3c7a377ac0050bc

SHA1
7023c4d1e94336702c934331e80c6a259713429c

SHA256
9989e89c8a8d1e30a19ac9cc4c587b05d240be150b096501e4c8e78edb01e4df

SHA512
f8f4e6bd9e05368666f085286b64afdfdf1dd5830c90c838327062f2a44e51febad44103f0cc5abaa665843e6fda727928823035493e5a157aee6b0630dac4b6

Download Submit
memory/3720-0-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/3720-1-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/3720-2-0x0000000003140000-0x0000000003146000-memory.dmp

Filesize
24KB

Download
memory/4456-17-0x0000000003000000-0x0000000003006000-memory.dmp

Filesize
24KB

Download
memory/4456-23-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download