f5808217513031338d8b92e6959c1b0252d332a907a32d77d3640d60bae21898

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 00:57

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe
Size

96KB
MD5

e91d203ab3f0343063ecea12d1476535
SHA1

cc3dae17cb193d99e92650e7b39d9945a9b7e8e3
SHA256

f5808217513031338d8b92e6959c1b0252d332a907a32d77d3640d60bae21898
SHA512

cd2ac5ce1e64c08b198504e8cd24f7c5083d76e37993b6651902d09c627f32a3315471c68b09243b50e0d54a502f3bcbfc6003460cb0986a032c9339d84aad19
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpJ:V6a+pOtEvwDpjtzW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	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

Processes:

2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1556 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1556	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe

description	pid	process	target process
PID 4700 wrote to memory of 1556	4700	2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe	asih.exe
PID 4700 wrote to memory of 1556	4700	2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe	asih.exe
PID 4700 wrote to memory of 1556	4700	2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4700

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1556

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
96KB

MD5
22b7938c64fb3f52974d1193e82fe688

SHA1
909ab4a4ff645090d71e1c946c1284fb0bec80d1

SHA256
59f266e2b31be8eee7cc54edcf5108e41187510ddd1652c498f19528840853d4

SHA512
9b2c1597597ad0a14943544240f9f1bf511f5b485161719b24b49a3d02b50a76722d6628512608fee3365b362a6a14bb6caa5427aad5b61774f2b19f2fdf8685

Download Submit
memory/1556-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1556-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4700-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4700-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4700-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download