9c5ffc0f34db4bdb66898c2ea7e7c002d80e21910fb47ca95de7a683b3a36cb0

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
20/05/2024, 20:32

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General

Target

2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe
Size

41KB
MD5

d0e1f98d523b55f46232cce5abd6d9f3
SHA1

ef9297868eacf93ffe85969acc4cf85996f4c9bf
SHA256

9c5ffc0f34db4bdb66898c2ea7e7c002d80e21910fb47ca95de7a683b3a36cb0
SHA512

d2875eeee75a8a2c69790144c1ae62f83216079c49ae480da8c8007b0cbb6fdceb62ac121482a4dbb6d622305ace4fc7b6f4761913ccbfd1d24cc6c5dc201e6f
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9xgym:bIDOw9a0Dwo3P1ojvUSD79yym

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015cbd-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3020	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1776	2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_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 1776 wrote to memory of 3020	1776	2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe	28
PID 1776 wrote to memory of 3020	1776	2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe	28
PID 1776 wrote to memory of 3020	1776	2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe	28
PID 1776 wrote to memory of 3020	1776	2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-20_d0e1f98d523b55f46232cce5abd6d9f3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3020

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\lossy.exe

Filesize
41KB

MD5
a2e65aeba5b9965510e1b2062b242d55

SHA1
308867f7baae88a6533ff6e43eee36894f4c5fda

SHA256
c95ebf96ce742dbb910e2cb278a406bdcf74894481e4fae423201da9bbf6f143

SHA512
161e3d3be00ff471e3415f216b6eb138bab51723ec6ae2c306d0d379a0a5c823c8792997da022bd5559d9aebb0784c9cfd3bc286dee65b44f061bca2524d4cef

Download Submit
memory/1776-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1776-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1776-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3020-15-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download