skuld | 9030098c9b2ecabe713d76727ccc2be79663d55716644446bb1482d948697e17

Analysis

max time kernel
70s
max time network
75s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2024 05:28

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General

Target

_protected.exe
Size

15.3MB
MD5

5bc9c103742fa7e457e906e07832c395
SHA1

142c19a8f1dd419ce9c2f251cbc263b8abf476de
SHA256

9030098c9b2ecabe713d76727ccc2be79663d55716644446bb1482d948697e17
SHA512

1633349abd47715ed0804cb08798e9b12c862fe4239953de21481a07de502d13be74879e8ce7a962c1c68e1c967b47337095cc7458c40e702023d6f241536221
SSDEEP

196608:/tp+pRF2L2DOMpQJ7c/9VI33COUkbHIHfE6wO0vEuM3Op9MnYQcHh/fT+X2DjL:SpRVhpQVc1SnzUkYE8SEb3gHpDjL

Score

10^/10

skuld evasion stealer trojan

Malware Config

Extracted

Family

skuld

https://discord.com/api/webhooks/1279552508578238534/-lGdkw-tDuy6Wd-I7APMhPnY3Tp2Oh3ZxzkvZFiG36eu6-pHpBKf4a2y4W0ZpaNYzcmk

Signatures

Skuld stealer
An info stealer written in Go lang.
stealer skuld
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

_protected.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ _protected.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	_protected.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

_protected.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	_protected.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	_protected.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

_protected.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA _protected.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

_protected.exe

pid process

3296 _protected.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	_protected.exe

pid	process
3296	_protected.exe

C:\Users\Admin\AppData\Local\Temp\_protected.exe
"C:\Users\Admin\AppData\Local\Temp\_protected.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:3296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3296-0-0x00007FFC28EF0000-0x00007FFC28EF2000-memory.dmp

Filesize
8KB

Download
memory/3296-1-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-2-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-4-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-7-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-8-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-9-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-6-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-3-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-5-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-10-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-11-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download
memory/3296-12-0x0000000000400000-0x00000000019DB000-memory.dmp

Filesize
21.9MB

Download