02645962975f00ecac1c094773b9b8a970061e954d9e4e48b3a8eb08959356d6

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/02/2024, 03:39

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-02-24_b5e9dfd9e17f1f0c200d7f7ccc5767a9_cryptolocker.exe
Size

39KB
MD5

b5e9dfd9e17f1f0c200d7f7ccc5767a9
SHA1

aa646009c2d9371f91741f6b734e8b8ac74b1505
SHA256

02645962975f00ecac1c094773b9b8a970061e954d9e4e48b3a8eb08959356d6
SHA512

310fc8afdcf108e4e740f806ac34aa7738dc2a6ca164f194e65561c37e27ce08f138321e09679f548eac18b541c46b33ceb1a8d39473b90b44020cfa1b6b6e02
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dyzt:bIDOw9a0Dwo3P1ojvUSDq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2480	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2008	2024-02-24_b5e9dfd9e17f1f0c200d7f7ccc5767a9_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 2008 wrote to memory of 2480	2008	2024-02-24_b5e9dfd9e17f1f0c200d7f7ccc5767a9_cryptolocker.exe	28
PID 2008 wrote to memory of 2480	2008	2024-02-24_b5e9dfd9e17f1f0c200d7f7ccc5767a9_cryptolocker.exe	28
PID 2008 wrote to memory of 2480	2008	2024-02-24_b5e9dfd9e17f1f0c200d7f7ccc5767a9_cryptolocker.exe	28
PID 2008 wrote to memory of 2480	2008	2024-02-24_b5e9dfd9e17f1f0c200d7f7ccc5767a9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-24_b5e9dfd9e17f1f0c200d7f7ccc5767a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_b5e9dfd9e17f1f0c200d7f7ccc5767a9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2480

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
39KB

MD5
fea86c008f89911b04ceaf23b59a5e70

SHA1
271500a3f1ee285f553060dbb756cb628adcc0da

SHA256
38d864cc517b87537b2879973100155bbdb2884897ab063e616700e0ac630020

SHA512
c1d8f70859782f1334b7bb563726c53c9e04df438f635bf5e8aabfe1074f758322a5bbd5469b4ec2159fd00db4f3226a821313baab003b3f5c1071405ada2d85

Download Submit
memory/2008-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2008-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2008-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2480-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2480-16-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download