09f0cff1fea04800b65da84393aaac8f7c1d00f6614032f569af6230c145ffb6

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 07:24

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General

Target

2024-02-22_067bb7947ae4a6616e02847b4560db86_cryptolocker.exe
Size

62KB
MD5

067bb7947ae4a6616e02847b4560db86
SHA1

c49f1c647079d1047e03e0c6ecda77f1b117d848
SHA256

09f0cff1fea04800b65da84393aaac8f7c1d00f6614032f569af6230c145ffb6
SHA512

50d0e242e14735c644dce5f60abc80b2d67279ba01dbcc5cbab6c3bb0043a7d51b1623a7c3258275fed4adff2c8033c0104c9fdc5d254e8358708d9a9994a2ac
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDScGQ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7F

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000231ee-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000231ee-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-1-5-21-3054445511-921769590-4013668107-1000\Control Panel\International\Geo\Nation	2024-02-22_067bb7947ae4a6616e02847b4560db86_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3054445511-921769590-4013668107-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3000	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 2516 wrote to memory of 3000	2516	2024-02-22_067bb7947ae4a6616e02847b4560db86_cryptolocker.exe	87
PID 2516 wrote to memory of 3000	2516	2024-02-22_067bb7947ae4a6616e02847b4560db86_cryptolocker.exe	87
PID 2516 wrote to memory of 3000	2516	2024-02-22_067bb7947ae4a6616e02847b4560db86_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-22_067bb7947ae4a6616e02847b4560db86_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_067bb7947ae4a6616e02847b4560db86_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2516
- 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:3000

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
53a11c250d718f1170548842632194d1

SHA1
96357fc76a1c02238a00109b411b256492dcd570

SHA256
a7859171e21c5c4b3afbade7732ffce4c695fdfe2017bb1013161f2d611a8469

SHA512
a95d98ea749003bd36698547a910b9c70f062d70705b4639c75b9f0ef266a1c9c3eba1b9859b71e63292f5818c8412a205656e547b540daf3d76b112e1b7db07

Download Submit
memory/2516-0-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2516-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2516-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3000-21-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download