c61721a5d9855c58be0756d6fd0b2e6b033b9c4ccd92b9ce8b275c792722e426

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:40

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General

Target

2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe
Size

46KB
MD5

91a949ca1ce9bfc5e81464ecb5efbf55
SHA1

8ca7a43f9784c3a71ae5bdb26a886f69e1047901
SHA256

c61721a5d9855c58be0756d6fd0b2e6b033b9c4ccd92b9ce8b275c792722e426
SHA512

c0fa14a7f57a56e24da0f7d1a162aa1e14dfd6a83c95a597a881caf786a0c251b95e72574a1f4b124174bcf3493727c4e06786d6d581556063572f30cb4b8aeb
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsJmZ3:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3B5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1232 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe

pid process

1632 2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1232	asih.exe

pid	process
1632	2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe

description	pid	process	target process
PID 1632 wrote to memory of 1232	1632	2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe	asih.exe
PID 1632 wrote to memory of 1232	1632	2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe	asih.exe
PID 1632 wrote to memory of 1232	1632	2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe	asih.exe
PID 1632 wrote to memory of 1232	1632	2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_91a949ca1ce9bfc5e81464ecb5efbf55_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1632

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1232

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
46KB

MD5
36ac6b5190d6da1d5d47bd427e6963ac

SHA1
6d721091368135a8abed07a197e7f8ec516064d2

SHA256
a8c4fe7ab98d5314050b5103d92dd6daf2dc380988c7877ded17671ce8dc6353

SHA512
188ed412f22b74c6fc14cbad6601aaaec993f44d2aebe44b7da7647cbef7c5a4841101e22f668ecadc8b4bcc72ec730a83517304e1cfe9a9793981d6c2225e9c

Download Submit
memory/1232-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1232-22-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1632-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1632-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1632-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download