a0592ae63ebf93d1b5df845581b8b4912e7e7d706bc934d7a67dc2fe17839467

Analysis

max time kernel
136s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
25/05/2024, 11:43

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General

Target

2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe
Size

68KB
MD5

8277c853d43fa9179ad9202cd2cb3af5
SHA1

b2d3ed4e1184b082e4ac5a5ce8aecf3338d95dc5
SHA256

a0592ae63ebf93d1b5df845581b8b4912e7e7d706bc934d7a67dc2fe17839467
SHA512

bb7b7a6b084fe9166eb1cb017474102e46901c3d246d38cc1ea8512b726ffa029ece88a6fc981d47ea4749b5398f9fe6fd6b2857f67f7dbfc893ae528360ade9
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEV:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023305-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023305-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
2032	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 116 wrote to memory of 2032	116	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe	83
PID 116 wrote to memory of 2032	116	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe	83
PID 116 wrote to memory of 2032	116	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:116
- 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:2032

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
165c5960cf02f3b3775df3bccc507d1c

SHA1
8ba8b10169fb41c3470b2e860e662c8417bf74e3

SHA256
376928fe6002aabe177a256599637e1af7c57362957e580b766740c1e7281a42

SHA512
5a95723fba213bd4914b243335211a76dd6bdc4ba8f62c710775ee7ffbb3109c25f42584de72721166d64f1d267be74b2c066958dedb1e60fa6b5742a3aab52b

Download Submit
memory/116-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/116-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/116-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2032-25-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download