ba004a837e42c73abebf0cd5093230150aa8118e2cdcce994463cfc553775aa5

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
22-05-2024 02:52

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General

Target

2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe
Size

49KB
MD5

e6f19baa38ce28850f85c22994459045
SHA1

55f2dfe8a3d630d08793204e70127cf24778be09
SHA256

ba004a837e42c73abebf0cd5093230150aa8118e2cdcce994463cfc553775aa5
SHA512

c69dc45dfb152183c744856531b453022069cbb803bb7e7196acd0ea8f4074727cd127720d0de07f75d54daa4995a96e68425a90d4d0516422e6e6fb20641ccf
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfe:X6QFElP6n+gJBMOtEvwDpjBtEdXfe

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_e6f19baa38ce28850f85c22994459045_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

4916 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4916	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe

description	pid	process	target process
PID 3364 wrote to memory of 4916	3364	2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe	asih.exe
PID 3364 wrote to memory of 4916	3364	2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe	asih.exe
PID 3364 wrote to memory of 4916	3364	2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3364

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:4916

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
49KB

MD5
39d3d636e3ae7ba7503b47d16591aefc

SHA1
476c98ef24d2b793fe905ea727e3258277df7136

SHA256
b10f42ed678ebb98b9f9f4c5b436d6dfd08dccad3a6be7cdce0a7d9e75364aa8

SHA512
fc5388497217cd46afa18aa9164a89cfd4c43a21f10a53f2359c3dac8aa1b577b19bb00fa32c29c6ac38805a4c42f773e22fdc9b822db423fdce512dd8c058f0

Download Submit
memory/3364-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3364-1-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3364-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4916-23-0x0000000001F60000-0x0000000001F66000-memory.dmp

Filesize
24KB

Download
memory/4916-17-0x0000000001F80000-0x0000000001F86000-memory.dmp

Filesize
24KB

Download