7dafa214866f013042a388d66378f51a6182651e97b4646234d425b3e8142d23

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 05:04

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General

Target

2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe
Size

64KB
MD5

a7c0efc668be0a226969e2a1cd67501d
SHA1

89e6e71057f93c933f54006ecc788024ffc96b9e
SHA256

7dafa214866f013042a388d66378f51a6182651e97b4646234d425b3e8142d23
SHA512

4156206d5ecbc7874801151b85c1403a99f3ffcf4f3d1eca60cdfda16f3a8179ac0c81627972557009cf2df55321645f0c6f1de80aa3be5dc9c07c5c92ede831
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDSA96:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023200-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023200-12.dat	CryptoLocker_set1

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
2460	hurok.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 1584 wrote to memory of 2460	1584	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe	87
PID 1584 wrote to memory of 2460	1584	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe	87
PID 1584 wrote to memory of 2460	1584	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1584
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2460

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\hurok.exe

Filesize
64KB

MD5
faf4f6792b59bfe1799c7ef143ee0fd1

SHA1
11d9baa1ccd83b277fd9a76d6b281c2f237cbde2

SHA256
d7f130e855df9ecbfdade0d5c79b53ff394e1daf73f5b6e298b3958b54a5eade

SHA512
bde3769cf853118b82328fe1fb9c4c6f9dd0bd7f2e99db211e116dbe6512fc1ea12e7c612c317ac793300ba3a6abbb999e05e97394c3666e18563a3a3d1aad6c

Download Submit
memory/1584-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1584-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1584-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2460-21-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download