32c96bdad6ea30e0097377991cf8bc037538549cf8da24f42c269f681ead8408

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 15:02

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General

Target

2024-04-16_e4b09c0548b9d530b18a5b78d08d6461_cryptolocker.exe
Size

66KB
MD5

e4b09c0548b9d530b18a5b78d08d6461
SHA1

52e29a1955b0ad61a3191c9de4dc2b7eb395e93f
SHA256

32c96bdad6ea30e0097377991cf8bc037538549cf8da24f42c269f681ead8408
SHA512

441a5cc00a1174e03c975a31823faf0a4cb2e658b79e7ed7b68664c8b354247feedd06aac3c31f7abb1f1ffcd68d2b5e4ad08f6da004ce84fd42fb503fb86c16
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLN:aq7tdgI2MyzNORQtOflIwoHNV2XBFV70

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0005000000022a73-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0005000000022a73-12.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-1-5-21-776854024-226333264-2052258302-1000\Control Panel\International\Geo\Nation	2024-04-16_e4b09c0548b9d530b18a5b78d08d6461_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-776854024-226333264-2052258302-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	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 1032 wrote to memory of 2708	1032	2024-04-16_e4b09c0548b9d530b18a5b78d08d6461_cryptolocker.exe	85
PID 1032 wrote to memory of 2708	1032	2024-04-16_e4b09c0548b9d530b18a5b78d08d6461_cryptolocker.exe	85
PID 1032 wrote to memory of 2708	1032	2024-04-16_e4b09c0548b9d530b18a5b78d08d6461_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-16_e4b09c0548b9d530b18a5b78d08d6461_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_e4b09c0548b9d530b18a5b78d08d6461_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1032
- 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:2708

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
67KB

MD5
5d77bc26e2154d45c1709158f3ff95fa

SHA1
efadf2a0e7c0be58bc872b1c3b92eccc842ab351

SHA256
c0c87af564ccfa7ab9c9132f665e0a5849a33d137bee07edcb89c4310f9e2add

SHA512
a8b2a6f6fac9c21fb91aa291d63244b58ea33be529db0bcad1f7ab9f5c3e0bfe55468a251e31ae6c59e5cb275af1306c96ea2bedacb9fc00f22e96fe420b6ada

Download Submit
memory/1032-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1032-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1032-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2708-25-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download