ec74faf149f1d56bbf825e6d7868f96c5fbdba22ab9bd7767113fbefc8abdc80

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 11:35

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General

Target

2024-01-27_8c3f82e727e434aba5baf0c8fe603ea9_cryptolocker.exe
Size

131KB
MD5

8c3f82e727e434aba5baf0c8fe603ea9
SHA1

cebbb33f0101190e3b77c16fefd438a7b00eab40
SHA256

ec74faf149f1d56bbf825e6d7868f96c5fbdba22ab9bd7767113fbefc8abdc80
SHA512

5135d1371886094d2e374ed8f351dd65d4e3ff671196ddd59a95d5b9381bb835bd0262f4ad2499382d9837eeb435c87e3ca8bf7b070ff2d897204cc297c9b668
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbD:V6a+pOtEvwDpjt22H

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015d70-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015d70-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2088	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2372	2024-01-27_8c3f82e727e434aba5baf0c8fe603ea9_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 2372 wrote to memory of 2088	2372	2024-01-27_8c3f82e727e434aba5baf0c8fe603ea9_cryptolocker.exe	28
PID 2372 wrote to memory of 2088	2372	2024-01-27_8c3f82e727e434aba5baf0c8fe603ea9_cryptolocker.exe	28
PID 2372 wrote to memory of 2088	2372	2024-01-27_8c3f82e727e434aba5baf0c8fe603ea9_cryptolocker.exe	28
PID 2372 wrote to memory of 2088	2372	2024-01-27_8c3f82e727e434aba5baf0c8fe603ea9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_8c3f82e727e434aba5baf0c8fe603ea9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_8c3f82e727e434aba5baf0c8fe603ea9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2088

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
131KB

MD5
bfb0ea625a759efe87c607aec0e7eef1

SHA1
464aef3b90abce18b2ff44047e70e7ff64c4b462

SHA256
fba87bb057883631c168680f741712638dadbb5acc9bb433b7b939ef03ed81b2

SHA512
12cb4aab0560a2a72fd8a611624fdc633dd9e7b31896801024c04e0938287157c59f68022fe998abd9527be4bfa2a4bf25a6bf8a2116feb382622229efa7c436

Download Submit
memory/2088-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2088-17-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2372-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2372-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2372-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download