7ec668b75adf1ace751a3923e71677d1ca4b413cea8150148e1544c0dd410238

Analysis

max time kernel
139s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
24/04/2024, 03:37

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General

Target

2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe
Size

64KB
MD5

33ab1c2f1dda4877568da2a6b5be7ea5
SHA1

5a9e0087852040fa66b4ff96a904cbd4e4ee8bae
SHA256

7ec668b75adf1ace751a3923e71677d1ca4b413cea8150148e1544c0dd410238
SHA512

7aa4bee43ebaff1392325445039a0b100c5d694efa998aae762085b3f32279b4f4c83362f30a18a46fc4b91f27d25d1aee1c49fce574c5d4f2b06206f6dc3185
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293Civ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db0e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db0e-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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1192	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 2524 wrote to memory of 1192	2524	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe	86
PID 2524 wrote to memory of 1192	2524	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe	86
PID 2524 wrote to memory of 1192	2524	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2524
- 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:1192

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
64KB

MD5
dd3f366f0a1e51c8831f5319adc6e00f

SHA1
9b78485b40a3286a2231fd6909004c4d3c6e36aa

SHA256
02781b8d3eadbcee0b2e1c606c95ae3fb55e486827b423db236c21a685dc9a56

SHA512
2697637293cf1ad0e359a27e65861cb1155fef3ea0e349663290975b3445fd020a9e9a9297b9824bc69f755a94e2120c75c3222ee5db3fc1f6a0c08020839e64

Download Submit
memory/1192-21-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

Filesize
24KB

Download
memory/2524-0-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/2524-1-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/2524-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download