f425e9b2e08f7b3eb69a0e3ab5f1720dc9d05892a23b098ce0da223f9bd3bae8

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 17:33

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General

Target

2024-03-29_378de56cf11c350b899c60718b345554_cryptolocker.exe
Size

52KB
MD5

378de56cf11c350b899c60718b345554
SHA1

bb46a709749c4ff6774d9c97e9a15fb0a100e851
SHA256

f425e9b2e08f7b3eb69a0e3ab5f1720dc9d05892a23b098ce0da223f9bd3bae8
SHA512

a12ec3bc0f840ece29610f7c1344ed6172d25d4c6e2d43021c56cfb4ffd1274dbb5d95da523dd834be535992a3e4bb642a524fdf8deb6f7189fe460c65a92431
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5Skz:ZVxkGOtEvwDpjcP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3032	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1992	2024-03-29_378de56cf11c350b899c60718b345554_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 1992 wrote to memory of 3032	1992	2024-03-29_378de56cf11c350b899c60718b345554_cryptolocker.exe	28
PID 1992 wrote to memory of 3032	1992	2024-03-29_378de56cf11c350b899c60718b345554_cryptolocker.exe	28
PID 1992 wrote to memory of 3032	1992	2024-03-29_378de56cf11c350b899c60718b345554_cryptolocker.exe	28
PID 1992 wrote to memory of 3032	1992	2024-03-29_378de56cf11c350b899c60718b345554_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_378de56cf11c350b899c60718b345554_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_378de56cf11c350b899c60718b345554_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3032

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\misid.exe

Filesize
52KB

MD5
a5c7cf8159658487a82a84d083650e9b

SHA1
5535a07bf87db4735d3ffe14c2a0bcc59d081eb5

SHA256
791e550662bc8080b4109c40d83ed61686c293322ad5d0d34a60fc5da0deea0c

SHA512
cefa6af8371a3ceef417c0ec33b08ade4b2574cee76af0c25380c2fe78db0998b11673fbd07e8ccd9399927b7baf1ca956997e7819061140a71d5cf9cdc9ec04

Download Submit
memory/1992-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1992-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1992-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/3032-16-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/3032-15-0x0000000000240000-0x0000000000243000-memory.dmp

Filesize
12KB

Download
memory/3032-18-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download