69007b4b37e566904f79d94cf46536490fa9dec937d34a446aa5818d91babaca

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-05-2024 11:52

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General

Target

2024-05-09_f37a2c81a877bf377a321f3240d7ed84_cryptolocker.exe
Size

76KB
MD5

f37a2c81a877bf377a321f3240d7ed84
SHA1

d1b48ced20e68e0cad28907678ac960e1f7cbd14
SHA256

69007b4b37e566904f79d94cf46536490fa9dec937d34a446aa5818d91babaca
SHA512

424573baf5a85b41c82de6f7020c674dd0bf424859aa107e53bf8f8b300f074bf7d4cd959603d9f0a979b7982ad4a0be292b633b1917b9349c06d2513f32216a
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1siC:X6a+SOtEvwDpjBZYvQd28

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001445e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001445e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2908	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-05-09_f37a2c81a877bf377a321f3240d7ed84_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 1720 wrote to memory of 2908	1720	2024-05-09_f37a2c81a877bf377a321f3240d7ed84_cryptolocker.exe	28
PID 1720 wrote to memory of 2908	1720	2024-05-09_f37a2c81a877bf377a321f3240d7ed84_cryptolocker.exe	28
PID 1720 wrote to memory of 2908	1720	2024-05-09_f37a2c81a877bf377a321f3240d7ed84_cryptolocker.exe	28
PID 1720 wrote to memory of 2908	1720	2024-05-09_f37a2c81a877bf377a321f3240d7ed84_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_f37a2c81a877bf377a321f3240d7ed84_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_f37a2c81a877bf377a321f3240d7ed84_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2908

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\asih.exe

Filesize
76KB

MD5
291ce9fa11696597b6e3b8b237043a3f

SHA1
146e97eec0e35ec0e0b1f597eaf205b40eb25bf0

SHA256
64835e5fe5d898ccf1cf29d733f125df5c2e95f0089cc04b9e8d2462bddcb1ef

SHA512
696e5524b60527717f1516e34b201a5f4c1587f6b25bc0de7ccaf593a3f6f01053ba7ab2c3e6ecdec219dcba75a06ab83e9218523ce95886112d11bb9dd6a96b

Download Submit
memory/1720-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1720-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2908-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download