9c634b3ae831e3d8078a840014a118db01b646b79849f121a4ed817fd09a61a1

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 05:35

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General

Target

2024-04-30_d221099c03da774bea21255a2e8c5346_cryptolocker.exe
Size

53KB
MD5

d221099c03da774bea21255a2e8c5346
SHA1

965865649fbdc1b750cd267275354ac6d62cedb0
SHA256

9c634b3ae831e3d8078a840014a118db01b646b79849f121a4ed817fd09a61a1
SHA512

50bda3eca6d84efda9c96a4793999eba031f5a170884d7a0f9a59165d9afac2f20bb040a2b0b240534edc8eff3c84442e9e2f89182fe0c7b02b922765ba346fc
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIKxp:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014323-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014323-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2752	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2416	2024-04-30_d221099c03da774bea21255a2e8c5346_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

pid	Process
2416	2024-04-30_d221099c03da774bea21255a2e8c5346_cryptolocker.exe
2752	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2752	2416	2024-04-30_d221099c03da774bea21255a2e8c5346_cryptolocker.exe	28
PID 2416 wrote to memory of 2752	2416	2024-04-30_d221099c03da774bea21255a2e8c5346_cryptolocker.exe	28
PID 2416 wrote to memory of 2752	2416	2024-04-30_d221099c03da774bea21255a2e8c5346_cryptolocker.exe	28
PID 2416 wrote to memory of 2752	2416	2024-04-30_d221099c03da774bea21255a2e8c5346_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_d221099c03da774bea21255a2e8c5346_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_d221099c03da774bea21255a2e8c5346_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2416
- 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:2752

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
53KB

MD5
dfce36358a878008516af6d33f64920e

SHA1
c6b9fc1f0ee18ac1a423094c2b52e164b1ac26ca

SHA256
c0d1eb4c6e63827fe0a806e1f424adb924f86657d1206ba6a81f83f99e7b40cf

SHA512
2614a7ee743b87107c09ca2e86c4e3843a819b8ee6336610254bb4d8f88e6c4fda1f5041e9543c08410b306a2c9a2e2b510b86ce23e2e18b886705d7d16e8f47

Download Submit
memory/2416-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2416-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2416-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2752-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download