031f10cbf44a49a9b60f16d7226a790338989e8721bc69bf6d4cd3df9977aed4

Resubmissions

07-11-2024 00:26

241107-arhyratlfj 10

30-10-2024 02:55

241030-desh7svenf 10

30-10-2024 02:16

241030-cqmxessrgz 10

Analysis

max time kernel
91s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2024 00:26

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Report Analysis Logs

General

Target

skuld.exe
Size

9.9MB
MD5

b5274b22a9ec286fc42f9518bee6534d
SHA1

f667990c5edb8a0f7b92ec0c914180f31bdbadf4
SHA256

031f10cbf44a49a9b60f16d7226a790338989e8721bc69bf6d4cd3df9977aed4
SHA512

93cc0060d962944f49829a54ab011ec09fbf5528cf84020d6322a1d67734eca0b263e0b2733b93218374187dd636112b5df30240e2272d6ee35fe9625eddf075
SSDEEP

98304:rE/ZGHc/8ieXK0QbbUuMouRRo0OdpEsfEeB2v/ZmqzO:rmIvieXBE6RRo0MpEs8BnzO

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

skuld.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	skuld.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

skuld.exe

description pid process

Token: SeDebugPrivilege 2700 skuld.exe
Suspicious use of WriteProcessMemory 2 IoCs

Processes:

skuld.exe

description pid process target process

PID 2700 wrote to memory of 2052 2700 skuld.exe attrib.exe
PID 2700 wrote to memory of 2052 2700 skuld.exe attrib.exe
Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exe

pid process

2052 attrib.exe

description	pid	process
Token: SeDebugPrivilege	2700	skuld.exe

description	pid	process	target process
PID 2700 wrote to memory of 2052	2700	skuld.exe	attrib.exe
PID 2700 wrote to memory of 2052	2700	skuld.exe	attrib.exe

pid	process
2052	attrib.exe

C:\Users\Admin\AppData\Local\Temp\skuld.exe
"C:\Users\Admin\AppData\Local\Temp\skuld.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\skuld.exe
  2⤵
  - Views/modifies file attributes
  PID:2052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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