b89afc9357b4129aef944863ddfd435d1b3bd413943405e30acea9bbf0a63fb4

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 05:15

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General

Target

2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe
Size

93KB
MD5

9130340694c4bbeebe37381f25bd71e9
SHA1

086460eda67d4649fd9b51abbf4d72d269bfb6fe
SHA256

b89afc9357b4129aef944863ddfd435d1b3bd413943405e30acea9bbf0a63fb4
SHA512

3bdc0f2ba6268754400496f279041567f56bc755556f1688873a08033bf6b1b7161a42e8f3eb9f431e84b494590bb56915ba337e09a547d6f61ca70b0c7d3b57
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgN6:V6a+pOtEvwDpjtzg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023b08-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023b08-12.dat	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2448	asih.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3664 wrote to memory of 2448	3664	2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe	84
PID 3664 wrote to memory of 2448	3664	2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe	84
PID 3664 wrote to memory of 2448	3664	2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3664
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2448

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\asih.exe

Filesize
93KB

MD5
23a63c579ece77869c1236690eb25e9a

SHA1
28b2c08a9f97a04e9485943ff8d27819270f702c

SHA256
8551ecfd4ab20db40b55c7185eba46798fce6ff8e52a54a80f9037159df86506

SHA512
9e1de4d7bb8b1960a1a2e1bdf39f637fd198e5012a54bdda86e6b737fb886de274ac0066f617376f0e00fc3a9416624e27a3a8578c2436f60732e86d247f718f

Download Submit
memory/2448-17-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/2448-23-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3664-0-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/3664-1-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/3664-8-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download