848ed379006a7098fed09bbd34ada7a76829fde12a3f0a204e6fbed2dd202929

Analysis

max time kernel
103s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2024 18:32

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General

Target

2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe
Size

63KB
MD5

2acfc20d9c89e96958bc719aa57cfa03
SHA1

3f795696505c841f0bd3a4e84943a7169920e180
SHA256

848ed379006a7098fed09bbd34ada7a76829fde12a3f0a204e6fbed2dd202929
SHA512

b433b39a236374eff53d8be7d260892e77cab497b095dde4e4cb7cfeeef995ac5f59c9b23091c4a36543c6394b85b8f157a5bb4b929304026ca819789056a363
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293B83:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7G

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002320e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002320e-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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1196	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 2692 wrote to memory of 1196	2692	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe	90
PID 2692 wrote to memory of 1196	2692	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe	90
PID 2692 wrote to memory of 1196	2692	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2692
- 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:1196

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
63KB

MD5
95ad407a9959a8ecff19978cec4a61bf

SHA1
777cbf0bf5cefc07f464808d669b79c054902d90

SHA256
d906a7178da41d071f377ecf561fab5801ce0c34fd15449a29046f021f9fee07

SHA512
502cf594eb30d3c05010b88ca6778411e915fdb07693cbbef19916570fda8babd81d0be824f51eac295d53dd1cac4aefe07d99a66f79723e1b2a3dc269f64641

Download Submit
memory/1196-25-0x0000000001F00000-0x0000000001F06000-memory.dmp

Filesize
24KB

Download
memory/2692-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2692-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2692-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download