b220af136b7ca77b63be6614d19fad59b2321e422e16bc5114ee92a4d8a2bf46

Resubmissions

31/03/2024, 18:59

240331-xnh6nshc9x 3

24/08/2023, 18:04

230824-wnp4jsee63 10

Analysis

max time kernel
143s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
24/08/2023, 18:04

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General

Target

Karlson.exe
Size

635KB
MD5

883bffe32454c48a5881ece54d4b5b3c
SHA1

fd1b54f0104ee4b41484fd61834dac685ec71c18
SHA256

b220af136b7ca77b63be6614d19fad59b2321e422e16bc5114ee92a4d8a2bf46
SHA512

4e0d662b1dedff6b493126443b6c23cd84bb143cdbb367f05d236e154af6fdcbca2cc12b86def40ca010f5088d35ffd3e48e9302dd62f9fbfb9e702a97363c5e
SSDEEP

12288:57qTU6jXQDBJXDjBY07AYMMMMMFE3K/qO8:RqRjXMBJXDjBY07/MMMMMi+qO8

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "0"	SystemPropertiesPerformance.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	SystemPropertiesPerformance.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000_Classes\Local Settings	explorer.exe

C:\Users\Admin\AppData\Local\Temp\Karlson.exe
"C:\Users\Admin\AppData\Local\Temp\Karlson.exe"
1⤵
PID:4332

C:\Windows\system32\SystemPropertiesPerformance.exe
"C:\Windows\system32\SystemPropertiesPerformance.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
PID:1792

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3208

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
- Modifies registry class
PID:4496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads