514618f298a8d6dd40d54a2a4d3d498f1e369738b53bde424ca5948f07b36c76

Analysis

max time kernel
89s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 20:06

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General

Target

2024-02-12_892fdb6b0dc45821790637e49ea314d9_cryptolocker.exe
Size

60KB
MD5

892fdb6b0dc45821790637e49ea314d9
SHA1

3648c1f8a36245145a22061d2bdf9ed9affb3ed4
SHA256

514618f298a8d6dd40d54a2a4d3d498f1e369738b53bde424ca5948f07b36c76
SHA512

04cbf26893ec78da023b935b82c94da19ef720ad137929fe2e0507d1e5a6fffabd671efe61e78b32678e6f962b88f9cdfe502b367a922d10a74ffd1fd1a42a74
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lBO+:ZVxkGOtEvwDpjS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-02-12_892fdb6b0dc45821790637e49ea314d9_cryptolocker.exemisid.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-12_892fdb6b0dc45821790637e49ea314d9_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

3936 misid.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3936	misid.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-02-12_892fdb6b0dc45821790637e49ea314d9_cryptolocker.exe

description	pid	process	target process
PID 3696 wrote to memory of 3936	3696	2024-02-12_892fdb6b0dc45821790637e49ea314d9_cryptolocker.exe	misid.exe
PID 3696 wrote to memory of 3936	3696	2024-02-12_892fdb6b0dc45821790637e49ea314d9_cryptolocker.exe	misid.exe
PID 3696 wrote to memory of 3936	3696	2024-02-12_892fdb6b0dc45821790637e49ea314d9_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_892fdb6b0dc45821790637e49ea314d9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_892fdb6b0dc45821790637e49ea314d9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3696

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Checks computer location settings
- Executes dropped EXE
PID:3936

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\misid.exe

Filesize
60KB

MD5
45ceb3735200253c7b234d54858a1d1c

SHA1
8438254149ccd63ac7ba974ca24290659eba24e0

SHA256
9725415072ef65116608e1e180acfa330127c3d8036d2c8b71b31cd8ed4ac8fa

SHA512
fa957f130dc7ed7b52ec44cd1c7bd2ed7692ef74cdf6429ed0860872aa72cbd589dd68c3ccb53b96943be8e19696d785ea31b9d9b3a6ccddf4a8fab02e4e10fa

Download Submit
memory/3696-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3696-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3696-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3696-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3696-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3936-18-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3936-20-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/3936-25-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download