ebc7296fc3b719245e0784b5772725708be4b91cce69253eb0cfb0d365ca33b4

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 02:45

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General

Target

2024-05-22_b608eb7d7fe3abc9ae95a8bbd9429cd8_cryptolocker.exe
Size

52KB
MD5

b608eb7d7fe3abc9ae95a8bbd9429cd8
SHA1

36fe02d23642bdcc37521cd30cffa5dd41806043
SHA256

ebc7296fc3b719245e0784b5772725708be4b91cce69253eb0cfb0d365ca33b4
SHA512

c99f0482b849d1d49741d09a65bdffb453667905f29a8776adf57040eb0333c119f81c1c17b42e248342edbb5c2c1bb9ee131458440e2669c1a8278196427ea8
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaT6:X6QFElP6n+gJBMOtEvwDpjBtExmlu

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:

2024-05-22_b608eb7d7fe3abc9ae95a8bbd9429cd8_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-22_b608eb7d7fe3abc9ae95a8bbd9429cd8_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

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

System Information Discovery
T1082

pid	process
648	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_b608eb7d7fe3abc9ae95a8bbd9429cd8_cryptolocker.exe

description	pid	process	target process
PID 1248 wrote to memory of 648	1248	2024-05-22_b608eb7d7fe3abc9ae95a8bbd9429cd8_cryptolocker.exe	asih.exe
PID 1248 wrote to memory of 648	1248	2024-05-22_b608eb7d7fe3abc9ae95a8bbd9429cd8_cryptolocker.exe	asih.exe
PID 1248 wrote to memory of 648	1248	2024-05-22_b608eb7d7fe3abc9ae95a8bbd9429cd8_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_b608eb7d7fe3abc9ae95a8bbd9429cd8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_b608eb7d7fe3abc9ae95a8bbd9429cd8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1248

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:648

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
52KB

MD5
267622256605edc77f00cee3670c31c2

SHA1
ee3e5fdb8853975bce3df3a41ed308c637127fe8

SHA256
ce7f6603a71e843b910a054440d6fea8e72f42f4723253e45e8045b82dcc8864

SHA512
7820c730db96f1869e628ee13fc5a4e1e7334f11229b9ceb1197944bd5649439c4b49277ab5166f628bb7788c5ec30f32a34b04e418fa9d48df724621c11fefc

Download Submit
memory/648-18-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/648-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1248-0-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/1248-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1248-8-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download