30a0be7e3e1e085ec075576119192555b8d8cf91d041474fcaa52e339b28c1ec

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 15:44

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General

Target

2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe
Size

62KB
MD5

9816dc8431e27f0c5de41c175df76993
SHA1

d91c0727710d9d2531aee2c8b3547390d0169f43
SHA256

30a0be7e3e1e085ec075576119192555b8d8cf91d041474fcaa52e339b28c1ec
SHA512

f9a278e5cc83ddc87910427066f65e55adbd990ed96eb6b42c3fe6a2f456748731fec7e031f429f38f431c0e5121173389c53e5671697fc5a6045696fb1b25d2
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299Q:aq7tdgI2MyzNORQtOflIwoHNV2XBFV74

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

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

Detection of Cryptolocker Samples 1 IoCs

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

3008 hurok.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe

pid process

2368 2024-01-25_9816dc8431e27f0c5de41c175df76993_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:

2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exehurok.exe

pid process

2368 2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe
3008 hurok.exe

pid	process
3008	hurok.exe

pid	process
2368	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe

pid	process
2368	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe
3008	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe

description	pid	process	target process
PID 2368 wrote to memory of 3008	2368	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe	hurok.exe
PID 2368 wrote to memory of 3008	2368	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe	hurok.exe
PID 2368 wrote to memory of 3008	2368	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe	hurok.exe
PID 2368 wrote to memory of 3008	2368	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2368

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:3008

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

\Users\Admin\AppData\Local\Temp\hurok.exe
Filesize
62KB

MD5
8c00cefbde14e300e47b8b37fea5e404

SHA1
452e06ad0ad2caf4763f05331987da187bc20c20

SHA256
826acae144fe1346900df317abb1c38e631989c1f3ae3209b03c88eaeea18e91

SHA512
b652f737beaacb78010380719a469eb62b61dee6baaf86afaf91bf40d992769815ae5b46031a74154efe4374d7701d4c853a6e051616b751341ba444382488b4

Download Submit
memory/2368-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2368-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2368-1-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download