a79668a6d8127cb966c9979bb337c129984ada3b80abdf58e5c91675a053fbb0

Analysis

max time kernel
148s
max time network
152s
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 02:26

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General

Target

2024-05-23_33061337abdca9242ab0de2596275098_cryptolocker.exe
Size

46KB
MD5

33061337abdca9242ab0de2596275098
SHA1

c589e4d7eb4cab78f7607768fcdd690c5c09350f
SHA256

a79668a6d8127cb966c9979bb337c129984ada3b80abdf58e5c91675a053fbb0
SHA512

895ec61df3fd662c903dcecf300aaad29b695dc397699a55b58410ff9b57137e7cad6240b0709bb57620dc518359dd2612b21ed11759b60d93ee07a0b913949d
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsJp:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3M

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_33061337abdca9242ab0de2596275098_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-05-23_33061337abdca9242ab0de2596275098_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1284 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1284	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-23_33061337abdca9242ab0de2596275098_cryptolocker.exe

description	pid	process	target process
PID 932 wrote to memory of 1284	932	2024-05-23_33061337abdca9242ab0de2596275098_cryptolocker.exe	asih.exe
PID 932 wrote to memory of 1284	932	2024-05-23_33061337abdca9242ab0de2596275098_cryptolocker.exe	asih.exe
PID 932 wrote to memory of 1284	932	2024-05-23_33061337abdca9242ab0de2596275098_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_33061337abdca9242ab0de2596275098_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_33061337abdca9242ab0de2596275098_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:932

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1284

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
46KB

MD5
5af96bc6ee2dab0e6f06fd80731f417c

SHA1
8e3536d5106b785956a973d94cce8a39bd90b6b9

SHA256
155858089b50d47e3fa4c8bb2c50495fc020cd50a8021888553f3c1356aa4579

SHA512
d711373f12302f274a85eca237ffb21305040e9b511fcfd2d62c3859100db8fb4ea56589adbc5e7c0370cc58a02bf579063b5ab453de7c9e06d76fce7e1d1f27

Download Submit
memory/932-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/932-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/932-8-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1284-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1284-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download