60258b124fa7cfb450e248c65e3da4f793255e40be4f7cdfca6fd37c081e1993

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-01-2024 15:29

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General

Target

2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe
Size

42KB
MD5

704a0b7b057ee3ba6dae8feba437d3a2
SHA1

4ee2d4bdb2f308c6f442a49fbfb4067b9480d23c
SHA256

60258b124fa7cfb450e248c65e3da4f793255e40be4f7cdfca6fd37c081e1993
SHA512

0c5aa9878ace0fff8fb2b47ff46ee985ec8d90e420f0b1283b73e25ef9588aa978f75a3b9b47e3ce0d526fff7222ec2ef9cf5161d88603159d576bcab27ddf45
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3KxV:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2296	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2120	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_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
2120	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe
2296	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2296	2120	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe	28
PID 2120 wrote to memory of 2296	2120	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe	28
PID 2120 wrote to memory of 2296	2120	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe	28
PID 2120 wrote to memory of 2296	2120	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2120
- 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:2296

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
42KB

MD5
31e25e72c41c3109230064b6e0ab92fe

SHA1
0b6cb603b9054cc98a8873debac2ae04a2ad13f6

SHA256
5991c6d180c0160d0bba944df86c5a805d1147e744cb387cba0960f2cbfae067

SHA512
7a3db095ca1ac49b72819c675ba09da1e11fe95a535f987600ea80f7c44c20ad95dca69fe8ce395c5f252ea4735b67e94c465a04a10163e02fd5ca66dd4e32e0

Download Submit
memory/2120-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2120-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2120-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2296-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download