skuld | 16bf5db830978df824132273d27bf534df482eb2d870b14c8192d36f8860a335

Analysis

geolocation tags

asiadelhiinindia
max time kernel
149s
max time network
132s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
11/05/2026, 14:19

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General

Target
luscent.exe
Size 10.6MB
Sample260511-rm7vrafw5k
SHA256 16bf5db830978df824132273d27bf534df482eb2d870b14c8192d36f8860a335
MD5 ede9cbedd39c375b297b3dde27a2b9f8
SHA1 90f567e7a64fa7d4586de014b30cba1093201c48
SHA512 9cb53ad05eee7d40f68edcf8ae81a21d482e17789b9495f9dc5b2a7b445fac29527e0d4b2feb52495b6783136be93b8a37c123537f74ab944208cf948135c072
SSDEEP 98304:H02E5gAIcjAHw45iq9Ar14Gg2PRvaURfozMrPxE07bi:HIO7w554GgkRvaUGHAbi
TLSH
T1B6B64A57E9B551E8C0AE9175CA329522BB713C894F3463D36B50F6242F33BD0AEBA740
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion skuld persistence stealer

Malware Config

Extracted

Family

skuld

https://discord.com/api/webhooks/1503394862580629505/BPQR_9B91QqKlnwuqLaP8xNkolr5HvjQcpgpeNKT1NyYuFTQi7FoUv8k-fYIu4DcIATe

Signatures

Family: Skuld stealer
An info stealer written in Go lang.
stealer skuld

Detects SkuldStealer 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002a648-2.dat	family_skuld

Executes dropped EXE 1 IoCs

pid	Process
2144	SecurityHealthSystray.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-650218026-1419908266-2856590055-1000\Software\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	luscent.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	api.ipify.org
1	ip-api.com
2	api.ipify.org

GoLang User-Agent 1 IoCs

Uses default user-agent string defined by GoLang HTTP packages.

description	flow	ioc
HTTP User-Agent header	3	Go-http-client/1.1

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	2884	luscent.exe
Token: SeDebugPrivilege	2144	SecurityHealthSystray.exe
Token: SeIncreaseQuotaPrivilege	2892	wmic.exe
Token: SeSecurityPrivilege	2892	wmic.exe
Token: SeTakeOwnershipPrivilege	2892	wmic.exe
Token: SeLoadDriverPrivilege	2892	wmic.exe
Token: SeSystemProfilePrivilege	2892	wmic.exe
Token: SeSystemtimePrivilege	2892	wmic.exe
Token: SeProfSingleProcessPrivilege	2892	wmic.exe
Token: SeIncBasePriorityPrivilege	2892	wmic.exe
Token: SeCreatePagefilePrivilege	2892	wmic.exe
Token: SeBackupPrivilege	2892	wmic.exe
Token: SeRestorePrivilege	2892	wmic.exe
Token: SeShutdownPrivilege	2892	wmic.exe
Token: SeDebugPrivilege	2892	wmic.exe
Token: SeSystemEnvironmentPrivilege	2892	wmic.exe
Token: SeRemoteShutdownPrivilege	2892	wmic.exe
Token: SeUndockPrivilege	2892	wmic.exe
Token: SeManageVolumePrivilege	2892	wmic.exe
Token: 33	2892	wmic.exe
Token: 34	2892	wmic.exe
Token: 35	2892	wmic.exe
Token: 36	2892	wmic.exe
Token: SeIncreaseQuotaPrivilege	2892	wmic.exe
Token: SeSecurityPrivilege	2892	wmic.exe
Token: SeTakeOwnershipPrivilege	2892	wmic.exe
Token: SeLoadDriverPrivilege	2892	wmic.exe
Token: SeSystemProfilePrivilege	2892	wmic.exe
Token: SeSystemtimePrivilege	2892	wmic.exe
Token: SeProfSingleProcessPrivilege	2892	wmic.exe
Token: SeIncBasePriorityPrivilege	2892	wmic.exe
Token: SeCreatePagefilePrivilege	2892	wmic.exe
Token: SeBackupPrivilege	2892	wmic.exe
Token: SeRestorePrivilege	2892	wmic.exe
Token: SeShutdownPrivilege	2892	wmic.exe
Token: SeDebugPrivilege	2892	wmic.exe
Token: SeSystemEnvironmentPrivilege	2892	wmic.exe
Token: SeRemoteShutdownPrivilege	2892	wmic.exe
Token: SeUndockPrivilege	2892	wmic.exe
Token: SeManageVolumePrivilege	2892	wmic.exe
Token: 33	2892	wmic.exe
Token: 34	2892	wmic.exe
Token: 35	2892	wmic.exe
Token: 36	2892	wmic.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 3976	2884	luscent.exe	79
PID 2884 wrote to memory of 4184	2884	luscent.exe	81
PID 2884 wrote to memory of 2892	2884	luscent.exe	85

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
3976	attrib.exe
4184	attrib.exe

C:\Users\Admin\AppData\Local\Temp\luscent.exe
"C:\Users\Admin\AppData\Local\Temp\luscent.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\luscent.exe
  2⤵
  - Views/modifies file attributes
  PID:3976
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
  2⤵
  - Views/modifies file attributes
  PID:4184
- C:\Windows\System32\Wbem\wmic.exe
  wmic csproduct get UUID
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2892

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2144

Network

MITRE ATT&CK Enterprise v16

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

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Downloads

SecurityHealthSystray.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
Size 10.6MB
SHA256 16bf5db830978df824132273d27bf534df482eb2d870b14c8192d36f8860a335
MD5 ede9cbedd39c375b297b3dde27a2b9f8
SHA1 90f567e7a64fa7d4586de014b30cba1093201c48
SHA512 9cb53ad05eee7d40f68edcf8ae81a21d482e17789b9495f9dc5b2a7b445fac29527e0d4b2feb52495b6783136be93b8a37c123537f74ab944208cf948135c072
SSDEEP 98304:H02E5gAIcjAHw45iq9Ar14Gg2PRvaURfozMrPxE07bi:HIO7w554GgkRvaUGHAbi
TLSH
T1B6B64A57E9B551E8C0AE9175CA329522BB713C894F3463D36B50F6242F33BD0AEBA740
MD5 SHA1 SHA512 SSDEEP TLSH

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads