9ab0c9d967ed0d3addffd1b2f50b4ef13f94079349b456b78332ec9387259afd

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 00:55

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General

Target

2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe
Size

53KB
MD5

d446af70b5751d00ff269f605e5420a7
SHA1

65dc828044ef457d87b12c6fa2b9684b520436d9
SHA256

9ab0c9d967ed0d3addffd1b2f50b4ef13f94079349b456b78332ec9387259afd
SHA512

906bdfd69325a7a754957def4faa8992227c82dbdbeaf696d6700465a401aeb7cd70fb80ebb1956f9f452064c4438da7400c4fb3393425b2e83a546d50f5fc19
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIKx6D:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7o

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hurok.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hurok.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

2208 hurok.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe

pid process

1300 2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of UnmapMainImage 2 IoCs

Processes:

2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exehurok.exe

pid process

1300 2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe
2208 hurok.exe

pid	process
2208	hurok.exe

pid	process
1300	2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe

pid	process
1300	2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe
2208	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe

description	pid	process	target process
PID 1300 wrote to memory of 2208	1300	2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe	hurok.exe
PID 1300 wrote to memory of 2208	1300	2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe	hurok.exe
PID 1300 wrote to memory of 2208	1300	2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe	hurok.exe
PID 1300 wrote to memory of 2208	1300	2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_d446af70b5751d00ff269f605e5420a7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1300

C:\Users\Admin\AppData\Local\Temp\hurok.exe
"C:\Users\Admin\AppData\Local\Temp\hurok.exe"
2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:2208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
53KB

MD5
12e154d6130ec2c63cd88e8c7a20a48c

SHA1
c96c679f1456617272199b505e84ee15774a47f5

SHA256
05e583a8b2ea8e6d9598a8f74f0698b453b6de69d57ccf28cbed28cdc912c77f

SHA512
f072abadc760375f4400f9b4140d7c2c4735cbddb718854851c7e4319831cb491277b1f2374e6f25fbc054320e68251551108f6b89e94ae13e9ca9f6e02528c7

Download Submit
memory/1300-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1300-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1300-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2208-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download