ea86622acb529322f5843bb7f80b7b3f2a933211ae7e510e6a26b902fac7e14d

Analysis

max time kernel
134s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
03-05-2024 15:26

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General

Target

2024-05-03_5c63d06cdbe5b00181d4eebe1b543f40_cryptolocker.exe
Size

68KB
MD5

5c63d06cdbe5b00181d4eebe1b543f40
SHA1

d2be3caffa50c1ad71e2d6f2e21e2071ba90832a
SHA256

ea86622acb529322f5843bb7f80b7b3f2a933211ae7e510e6a26b902fac7e14d
SHA512

3805272f41d711c23b4e24417022e94685112147418e28803f55db81e79764b8e3fc3e89e445c1b0917bc4d94185853f8d9f203beeca5c2ad2c16ea0139565de
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLq:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7f

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023bcf-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023bcf-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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	2024-05-03_5c63d06cdbe5b00181d4eebe1b543f40_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
2120	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 4140 wrote to memory of 2120	4140	2024-05-03_5c63d06cdbe5b00181d4eebe1b543f40_cryptolocker.exe	83
PID 4140 wrote to memory of 2120	4140	2024-05-03_5c63d06cdbe5b00181d4eebe1b543f40_cryptolocker.exe	83
PID 4140 wrote to memory of 2120	4140	2024-05-03_5c63d06cdbe5b00181d4eebe1b543f40_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-03_5c63d06cdbe5b00181d4eebe1b543f40_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-03_5c63d06cdbe5b00181d4eebe1b543f40_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4140
- 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:2120

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
68KB

MD5
377f9f0e5e6fac713cad42075c63dd14

SHA1
f9f8401fb55946f6b1f29084a02c2a9b05051d3f

SHA256
5bc2d288b515a51af9d525d25bdf12a9b5ab76109bbe881feebcecf6c86b29b6

SHA512
d397a1eae6a009a64e8be78ed3bda5d51f05b8ed87512972b47193e2ae1a84741b0c380a75ba99008325e548641f4b33dc86343d567d789efe7e1b7216bd7c38

Download Submit
memory/2120-25-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download
memory/4140-0-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/4140-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/4140-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download