26e85b15a5e1b51791fecf70001f1e55aa3cab22ac81e65476d3357392066ddb

Analysis

max time kernel
148s
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 18:35

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General

Target

2024-01-22_31244b59200641cc228645a596d6a957_cryptolocker.exe
Size

39KB
MD5

31244b59200641cc228645a596d6a957
SHA1

4afbeb4e60f90f3c6275e5a1db83f31868cbc018
SHA256

26e85b15a5e1b51791fecf70001f1e55aa3cab22ac81e65476d3357392066ddb
SHA512

250a0bb4b2f9b43925499ba68e12d7bcf538c42eb0ab93370d48407fe8bc30ff39069d4b1e5a2e6c34228cd474e77820bd5bbaca9c6a8d0cdff16d3cda02b78b
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+rc5vVcF0:bgGYcA/53GADw8ClrcTcF0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e0000000122e1-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2468	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1736	2024-01-22_31244b59200641cc228645a596d6a957_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2468	1736	2024-01-22_31244b59200641cc228645a596d6a957_cryptolocker.exe	28
PID 1736 wrote to memory of 2468	1736	2024-01-22_31244b59200641cc228645a596d6a957_cryptolocker.exe	28
PID 1736 wrote to memory of 2468	1736	2024-01-22_31244b59200641cc228645a596d6a957_cryptolocker.exe	28
PID 1736 wrote to memory of 2468	1736	2024-01-22_31244b59200641cc228645a596d6a957_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-22_31244b59200641cc228645a596d6a957_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-22_31244b59200641cc228645a596d6a957_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2468

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\hasfj.exe

Filesize
39KB

MD5
23c2963264d0975a8eac0d935b05d470

SHA1
14d5a03f8eb86369b42316278a6fc3dd01d8b6fd

SHA256
053cbe6514a8db47d861e21851a0c1ddf528d5e9df0f962f126a5d75132215e6

SHA512
716f0f78ad15e73c1ffa8470d12b44ac4dcae72a0543cf81cd7156f102ccfdbee7ced96017ff591e7a71a86a70dbd691cc356c0809ad0bab4a31f2752b23745b

Download Submit
memory/1736-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1736-1-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/1736-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2468-18-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2468-15-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download