069d653a02ae5d5b793d5b652d6cf8160d0eb22ea9531a1be2c9a3f463ce8517

Analysis

max time kernel
92s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20240220-en
resource tags

arch:x64arch:x86image:win10v2004-20240220-enlocale:en-usos:windows10-2004-x64system
submitted
21/02/2024, 12:46

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General

Target

2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe
Size

31KB
MD5

241a6d68091d2325dffab935869ed622
SHA1

5298f146eca20e890db59b114ca0034d7fe24d48
SHA256

069d653a02ae5d5b793d5b652d6cf8160d0eb22ea9531a1be2c9a3f463ce8517
SHA512

3dbf1f33098411bb5e4fc94982d9c4b8e1ce2b6c6f96403b6f8d80ea6f6ed37168138a93dff0c7cf0612a24adb018a951066f578d8c210a1788fdbc806b73394
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm77J:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000001e6a8-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000001e6a8-12.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-1-5-21-4023562663-3911442808-1494947993-1000\Control Panel\International\Geo\Nation	2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4023562663-3911442808-1494947993-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
5100	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 4560 wrote to memory of 5100	4560	2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe	88
PID 4560 wrote to memory of 5100	4560	2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe	88
PID 4560 wrote to memory of 5100	4560	2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4560
- 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: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\hurok.exe

Filesize
31KB

MD5
0a34264ec1f21e9dde45fee9f88f47cd

SHA1
1f386e22b52beaf4b4ea0b6f7c13040103097f54

SHA256
24d70c0283764a4db5341a2a0d2838a917503dcf62599c35a3ad2cb40425bfb4

SHA512
c83f561e17f5234f5f253a3f71c8e20e2b84cce40d87d2e92c8c33330aaab6a4196e7028d2851ed3498547f9d7f43949d48ea96e71fefd61b136b762a20353db

Download Submit
memory/4560-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4560-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4560-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5100-25-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download