da606f675980885b875eff6e4ac14f2f7189051b022ee9cf17bc73c7800b2f62

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 21:50

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General

Target

2024-03-09_b75ebe90199ddd3ab0020655a6d63a64_cryptolocker.exe
Size

50KB
MD5

b75ebe90199ddd3ab0020655a6d63a64
SHA1

e0c18af35c2a2cbb65fad79fabfab564ab596989
SHA256

da606f675980885b875eff6e4ac14f2f7189051b022ee9cf17bc73c7800b2f62
SHA512

4fde6191b68456b0031affe57c0fca8903a85de7c561bf342d6c8293cf39accecf4a733a9d4f47dab1bdc12985d472b2df726dced5eb9bffdc4ad6ceaf78fb04
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIKxm:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7K

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012329-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012329-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3032	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2012	2024-03-09_b75ebe90199ddd3ab0020655a6d63a64_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
2012	2024-03-09_b75ebe90199ddd3ab0020655a6d63a64_cryptolocker.exe
3032	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 3032	2012	2024-03-09_b75ebe90199ddd3ab0020655a6d63a64_cryptolocker.exe	28
PID 2012 wrote to memory of 3032	2012	2024-03-09_b75ebe90199ddd3ab0020655a6d63a64_cryptolocker.exe	28
PID 2012 wrote to memory of 3032	2012	2024-03-09_b75ebe90199ddd3ab0020655a6d63a64_cryptolocker.exe	28
PID 2012 wrote to memory of 3032	2012	2024-03-09_b75ebe90199ddd3ab0020655a6d63a64_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_b75ebe90199ddd3ab0020655a6d63a64_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_b75ebe90199ddd3ab0020655a6d63a64_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2012
- 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:3032

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
50KB

MD5
790f16c01d6a19e43f65df94dde983ed

SHA1
c96be31d754b348e805d79c655b0cb1e3869b618

SHA256
8b9a8100d97503b6667a605d43e38af530c7b504e3791369c235b1c0e2001401

SHA512
b00a9998497576275f01ace400b72c814dacda46c5d5c61f6a58ccae2c7930a45986443288d6c45eeef5325a7428f79b603c849d2873e5f4567c744c46af9a63

Download Submit
memory/2012-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2012-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2012-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3032-17-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download