06f9a6394765f5db3006ac7473588c7b009d7e773efe20bc90a35511e6ee887d

Analysis

max time kernel
150s
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
13/02/2024, 18:22

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General

Target

2024-02-13_ddf4952fb5b1802f25ff72fc5b7d8e8d_cryptolocker.exe
Size

39KB
MD5

ddf4952fb5b1802f25ff72fc5b7d8e8d
SHA1

9bb580de53fc7ce53e46d0ae3cdadfc4cc1f3c3c
SHA256

06f9a6394765f5db3006ac7473588c7b009d7e773efe20bc90a35511e6ee887d
SHA512

73189ca566121dbccd19c5f13156e98b12878b7c8a415e1343b2b23cc3eb76a8df8e1c8b60893e06d4596216ed14f183990fca766361b8150b2869f04fdc0c5e
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8Pt:bIDOw9a0Dwo3P1ojvUSDhV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023225-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-13_ddf4952fb5b1802f25ff72fc5b7d8e8d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1060	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 1528 wrote to memory of 1060	1528	2024-02-13_ddf4952fb5b1802f25ff72fc5b7d8e8d_cryptolocker.exe	84
PID 1528 wrote to memory of 1060	1528	2024-02-13_ddf4952fb5b1802f25ff72fc5b7d8e8d_cryptolocker.exe	84
PID 1528 wrote to memory of 1060	1528	2024-02-13_ddf4952fb5b1802f25ff72fc5b7d8e8d_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-13_ddf4952fb5b1802f25ff72fc5b7d8e8d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_ddf4952fb5b1802f25ff72fc5b7d8e8d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1060

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

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Downloads

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

Filesize
40KB

MD5
2d0d7a1fec4b8a646aa5d5c0cf2b78d8

SHA1
6fd12cf8fe4ddf91f31862a29e7310ef5f3f8aaa

SHA256
9013739fef4f42289254f066b6832b1d91d0de8dbb490630b42ed275623245f3

SHA512
7e3e8b06e28356f6912be8fc4f8b47dd9b37e4e1596d7b652568017b69b3c3c0fe151d109d4a869ff1420f84782b3587502737f480c4c28e9a10afedf1b68d71

Download Submit
memory/1060-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1060-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1528-0-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/1528-1-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/1528-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download