e7f5b9b582f9b330bcbadf060106d0d2289341f78a3237ec88f4be7eb8d2eaa6

Analysis

max time kernel
149s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
08/06/2024, 23:24

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General

Target

2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe
Size

55KB
MD5

24f6f3546f45447a614e32d1b72dd239
SHA1

2c5695eaf1bc425f0bf702f73ec32e2e7195dc87
SHA256

e7f5b9b582f9b330bcbadf060106d0d2289341f78a3237ec88f4be7eb8d2eaa6
SHA512

39c598cff7dfd1bbf617760487f3f9683e9fd84684cf6c91ddc8c851c3f7cc1abe0cec14943857bd67d8a023e573cf58ca4ded9df36b7fbcd60cd303f58f5bc9
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6EX:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7C

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023278-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023278-12.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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
2424	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 4788 wrote to memory of 2424	4788	2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe	82
PID 4788 wrote to memory of 2424	4788	2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe	82
PID 4788 wrote to memory of 2424	4788	2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4788
- 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:2424

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
55KB

MD5
46a18081ead666da915bd47286a3f394

SHA1
47e4e1a6f09bbfc89defb460b3a891715d782abc

SHA256
a53ce701b1678d91d247b98466d719208faabcc4c63bf601c7fc8b723183b1d0

SHA512
187b29413fa4186d2fef11cb12e547335b7c052a94fb55b3b3d23551a95a8d62fe3a4258af84bad6d9756ee9d47806b00bbfc02aa728a851465eee4f5b8cbc1e

Download Submit
memory/2424-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4788-0-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/4788-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4788-8-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download