e47b8740904e9583137a0ad4fd922639d24ada1412df70dd1f7a45513be8744b

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2023, 11:27

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General

Target

2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe
Size

59KB
MD5

a94c942d4a76c2c3ada89f1b7e8b3a8c
SHA1

c1a82efbbfa6f138ed74a1d5047665a151cfbc95
SHA256

e47b8740904e9583137a0ad4fd922639d24ada1412df70dd1f7a45513be8744b
SHA512

202c18b6f7f2ce84c6fe5a7f7e49a3d117ccd1150225ce10da1312a964472ab11c8df20fc681a1d12c6bf38c314795ff7ef2a59a0190d28c23447477f3ed8944
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF29B:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7j

Score

7^/10

Malware Config

Signatures

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-1-5-21-2415528079-3794552930-4264847036-1000\Control Panel\International\Geo\Nation	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2415528079-3794552930-4264847036-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4712	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 3888 wrote to memory of 4712	3888	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe	85
PID 3888 wrote to memory of 4712	3888	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe	85
PID 3888 wrote to memory of 4712	3888	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe	85

C:\Users\Admin\AppData\Local\Temp\2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3888
- 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:4712

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
59KB

MD5
9cf6bfc61745ff822f8f3ba77fd4178e

SHA1
15e83ad6c3977ebdc71425d15042b0b6005f7294

SHA256
4d463618a7161d20327772c22b86d6e77fe95fe785bf5b945682ff33e887bffb

SHA512
427e5dd1c866785f85b7a32ec821f6495ce7e1c94095fd96ef6d9288e2f27f314338f3cf4348cb53cc16807617d19dc9b6fc2f5aa9bc3edbe91ea9c9f24802e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
59KB

MD5
9cf6bfc61745ff822f8f3ba77fd4178e

SHA1
15e83ad6c3977ebdc71425d15042b0b6005f7294

SHA256
4d463618a7161d20327772c22b86d6e77fe95fe785bf5b945682ff33e887bffb

SHA512
427e5dd1c866785f85b7a32ec821f6495ce7e1c94095fd96ef6d9288e2f27f314338f3cf4348cb53cc16807617d19dc9b6fc2f5aa9bc3edbe91ea9c9f24802e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
59KB

MD5
9cf6bfc61745ff822f8f3ba77fd4178e

SHA1
15e83ad6c3977ebdc71425d15042b0b6005f7294

SHA256
4d463618a7161d20327772c22b86d6e77fe95fe785bf5b945682ff33e887bffb

SHA512
427e5dd1c866785f85b7a32ec821f6495ce7e1c94095fd96ef6d9288e2f27f314338f3cf4348cb53cc16807617d19dc9b6fc2f5aa9bc3edbe91ea9c9f24802e2

Download Submit
memory/3888-0-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3888-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3888-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4712-20-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download