c9102bae3b88cdefa51261c5481b23665fe6706a5683ce190593273bc692fbdf

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/03/2024, 12:44

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General

Target

2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe
Size

53KB
MD5

175b0dba2d451e21bf42f6c1d62590e1
SHA1

ca95f0f0a02836b5a479ab729b454053db71caf5
SHA256

c9102bae3b88cdefa51261c5481b23665fe6706a5683ce190593273bc692fbdf
SHA512

ded1a239288bd06b5996556519d7e960be8da51c2594ef7c0033496153e0c89fcbf38bb430b943eba056da35ecf6ddfd47e5188abfe82361428ee39f6ca8ce7f
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8puY:bIDOw9a0DwitDZzcTLY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023236-12.dat	CryptoLocker_rule2

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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5100	lossy.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 4464 wrote to memory of 5100	4464	2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe	91
PID 4464 wrote to memory of 5100	4464	2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe	91
PID 4464 wrote to memory of 5100	4464	2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4464
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:5100

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\lossy.exe

Filesize
53KB

MD5
67b271269c0b0d224bf1d8e00fefb747

SHA1
fb8890bb4178d2d8b1b7714fca6412001c2bb0b3

SHA256
3d7f4e48da18faf9d84b2cea3477511e390773f5209ecbbe49d3707d4741a377

SHA512
f441f0480e5bbe5b2ee28cbce4031ebe2a22a219d7f5fb2dce35df342fcec04ddb2384d026a1a272c26dfbcc3f581ba3a7bfcdb4697d07bd839ca23c6b9ea77c

Download Submit
memory/4464-0-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4464-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4464-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/5100-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/5100-20-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download