41c15ecb31738d3611258cd2ac804d9d8f92ab906845f4b409d40771fed6b735

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/03/2024, 19:42

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General

Target

2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe
Size

120KB
MD5

94f39a8244ba7bd972810d56fd4df188
SHA1

3f92a8f87525501636060d709a14f694208863bf
SHA256

41c15ecb31738d3611258cd2ac804d9d8f92ab906845f4b409d40771fed6b735
SHA512

8ceb03552c4337e4ca14d7efc17642ed419e5389a867510a5c2baf0a9783559125210b4c2e1da466671ed77f26782e71e5a8e1c5530b239525c5482f2bb45374
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgo:u6a++OtEvwDpj6zs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2072	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2284	2024-03-05_94f39a8244ba7bd972810d56fd4df188_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 2284 wrote to memory of 2072	2284	2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe	28
PID 2284 wrote to memory of 2072	2284	2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe	28
PID 2284 wrote to memory of 2072	2284	2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe	28
PID 2284 wrote to memory of 2072	2284	2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2072

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
121KB

MD5
d83a1c9b2d361e0766e5cc81bfc7840c

SHA1
71869fc686e346cdee99bee983249f30c8a9250b

SHA256
2cbddb8fed82f47900812e01aeb3d5d2ee19965494056547a74faec4e09483f3

SHA512
5b389c691602ccca57d5b09f75ca354236122341c8a296de78ac2f943fbc69d7e8ea6bd3dc906f7926079aabbd8ff623a55af686bdd012fb60b3bb7b3558ae59

Download Submit
memory/2072-15-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2072-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2284-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2284-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2284-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download