bd7ea11316122af8bf826b2f3a719cc95289a7bb1025bab8fbb480cf5b736ef5

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2024, 20:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe
Size

38KB
MD5

1f8f81d6129c5923b7a0d935befa7844
SHA1

6b7b34142fb4f9054a38acc8caca2c1d6f98f024
SHA256

bd7ea11316122af8bf826b2f3a719cc95289a7bb1025bab8fbb480cf5b736ef5
SHA512

72325c400bc3c3ab14cb3cbb9f97d4ecf07cc24d04af5d3cb192a829f38fa4f4799a165e19a048d231ecfa3c023437c7fd11bae517a32ed6370aef1bb7476eda
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8Pc:bIDOw9a0Dwo3P1ojvUSDh0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023222-14.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4564	lossy.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3080 wrote to memory of 4564	3080	2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe	86
PID 3080 wrote to memory of 4564	3080	2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe	86
PID 3080 wrote to memory of 4564	3080	2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3080
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:4564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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
7f662b1c8c4350b3e33a2dc6a9708478

SHA1
09326003b09e1293a05e15ea6d05acab5e0256e2

SHA256
1ef6d1c2bbb20689ebb485e520bece43fccfb745dbb23612f426b7c163109e13

SHA512
254673e3e72c03ab6370d40935abfde752c1d2ba5b4fe28c5676391bd2dc8ca1ba84317dcad6a1cad9dc5a4aa72ac814354b629e8df5e28340a4798925e605c3

Download Submit
memory/3080-0-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/3080-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/3080-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4564-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4564-23-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download