skuld | 3b37a4d1ca824ec8823897c2918855e94715723cfcec2aaedbf6c5225590b2ac

Analysis

max time kernel
150s
max time network
135s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
23/07/2026, 09:40

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-07-23_fcffee2aa36d519ced7397b04d24cfac_coinminer_dosia_frostygoop_glassworm_hive_knight_luca-st.exe
Size 10.4MB
Sample260723-lnjawsbc47
SHA256 3b37a4d1ca824ec8823897c2918855e94715723cfcec2aaedbf6c5225590b2ac
MD5 fcffee2aa36d519ced7397b04d24cfac
SHA1 d343f1e8627ac235c33cdcdbacb861c862692533
SHA512 ea0d0cc65bb50f81838c0cd04e2ca9e797594f0d91a23481c8b1f43a489fa54424e51f4b6fc22e90c4b1154eb58fd35b48ab3827708da3517782d315d8bc3878
SSDEEP 98304:QkPB2A0CzhjakJuw4JjXw+iypmkCZnkuCssiwCB1S8EAz:Q1A0CtjavN+A1CZnjCfpMS1Az
TLSH
T102B64A57ECA145E5C0AAD575CA269223BE713C884F3063E76B60F7242F72BD0AE79740
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion skuld persistence stealer

Malware Config

Extracted

Family

skuld

https://discord.com/api/webhooks/1529114396758905034/9MKCTI3Tc9Pe8hu9bpNeRJ1TpCxsD3z5dUm0SF7-29KY5jUwh6bNtDYQbK_hdNNS2ztZ

Signatures

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

Detects SkuldStealer 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c5bb-2.dat	family_skuld

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c5bb-2.dat	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c5bb-2.dat	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables Discord URL observed in first stage droppers 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c5bb-2.dat	INDICATOR_SUSPICIOUS_EXE_DiscordURL

Detects executables containing SQL queries to confidential data stores. Observed in infostealers 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c5bb-2.dat	INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore

Detects executables containing URLs to raw contents of a Github gist 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c5bb-2.dat	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL

Detects executables containing possible sandbox system UUIDs 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c5bb-2.dat	INDICATOR_SUSPICIOUS_EXE_SandboxSystemUUIDs

Detects executables referencing virtualization MAC addresses 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c5bb-2.dat	INDICATOR_SUSPICIOUS_VM_Evasion_MACAddrComb

Executes dropped EXE 1 IoCs

pid	Process
5904	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-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	2026-07-23_fcffee2aa36d519ced7397b04d24cfac_coinminer_dosia_frostygoop_glassworm_hive_knight_luca-st.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
3	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	11	Go-http-client/1.1

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1524	wmic.exe
1524	wmic.exe
1524	wmic.exe
1524	wmic.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	2452	2026-07-23_fcffee2aa36d519ced7397b04d24cfac_coinminer_dosia_frostygoop_glassworm_hive_knight_luca-st.exe
Token: SeDebugPrivilege	5904	SecurityHealthSystray.exe
Token: SeIncreaseQuotaPrivilege	1524	wmic.exe
Token: SeSecurityPrivilege	1524	wmic.exe
Token: SeTakeOwnershipPrivilege	1524	wmic.exe
Token: SeLoadDriverPrivilege	1524	wmic.exe
Token: SeSystemProfilePrivilege	1524	wmic.exe
Token: SeSystemtimePrivilege	1524	wmic.exe
Token: SeProfSingleProcessPrivilege	1524	wmic.exe
Token: SeIncBasePriorityPrivilege	1524	wmic.exe
Token: SeCreatePagefilePrivilege	1524	wmic.exe
Token: SeBackupPrivilege	1524	wmic.exe
Token: SeRestorePrivilege	1524	wmic.exe
Token: SeShutdownPrivilege	1524	wmic.exe
Token: SeDebugPrivilege	1524	wmic.exe
Token: SeSystemEnvironmentPrivilege	1524	wmic.exe
Token: SeRemoteShutdownPrivilege	1524	wmic.exe
Token: SeUndockPrivilege	1524	wmic.exe
Token: SeManageVolumePrivilege	1524	wmic.exe
Token: 33	1524	wmic.exe
Token: 34	1524	wmic.exe
Token: 35	1524	wmic.exe
Token: 36	1524	wmic.exe
Token: SeIncreaseQuotaPrivilege	1524	wmic.exe
Token: SeSecurityPrivilege	1524	wmic.exe
Token: SeTakeOwnershipPrivilege	1524	wmic.exe
Token: SeLoadDriverPrivilege	1524	wmic.exe
Token: SeSystemProfilePrivilege	1524	wmic.exe
Token: SeSystemtimePrivilege	1524	wmic.exe
Token: SeProfSingleProcessPrivilege	1524	wmic.exe
Token: SeIncBasePriorityPrivilege	1524	wmic.exe
Token: SeCreatePagefilePrivilege	1524	wmic.exe
Token: SeBackupPrivilege	1524	wmic.exe
Token: SeRestorePrivilege	1524	wmic.exe
Token: SeShutdownPrivilege	1524	wmic.exe
Token: SeDebugPrivilege	1524	wmic.exe
Token: SeSystemEnvironmentPrivilege	1524	wmic.exe
Token: SeRemoteShutdownPrivilege	1524	wmic.exe
Token: SeUndockPrivilege	1524	wmic.exe
Token: SeManageVolumePrivilege	1524	wmic.exe
Token: 33	1524	wmic.exe
Token: 34	1524	wmic.exe
Token: 35	1524	wmic.exe
Token: 36	1524	wmic.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 5672	2452	2026-07-23_fcffee2aa36d519ced7397b04d24cfac_coinminer_dosia_frostygoop_glassworm_hive_knight_luca-st.exe	90
PID 2452 wrote to memory of 5092	2452	2026-07-23_fcffee2aa36d519ced7397b04d24cfac_coinminer_dosia_frostygoop_glassworm_hive_knight_luca-st.exe	91
PID 2452 wrote to memory of 1524	2452	2026-07-23_fcffee2aa36d519ced7397b04d24cfac_coinminer_dosia_frostygoop_glassworm_hive_knight_luca-st.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
5672	attrib.exe
5092	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2026-07-23_fcffee2aa36d519ced7397b04d24cfac_coinminer_dosia_frostygoop_glassworm_hive_knight_luca-st.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-23_fcffee2aa36d519ced7397b04d24cfac_coinminer_dosia_frostygoop_glassworm_hive_knight_luca-st.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\2026-07-23_fcffee2aa36d519ced7397b04d24cfac_coinminer_dosia_frostygoop_glassworm_hive_knight_luca-st.exe
  2⤵
  - Views/modifies file attributes
  PID:5672
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
  2⤵
  - Views/modifies file attributes
  PID:5092
- C:\Windows\System32\Wbem\wmic.exe
  wmic csproduct get UUID
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1524

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:5904

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

Replay Monitor

Loading Replay Monitor...

Downloads

SecurityHealthSystray.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
Size 10.4MB
SHA256 3b37a4d1ca824ec8823897c2918855e94715723cfcec2aaedbf6c5225590b2ac
MD5 fcffee2aa36d519ced7397b04d24cfac
SHA1 d343f1e8627ac235c33cdcdbacb861c862692533
SHA512 ea0d0cc65bb50f81838c0cd04e2ca9e797594f0d91a23481c8b1f43a489fa54424e51f4b6fc22e90c4b1154eb58fd35b48ab3827708da3517782d315d8bc3878
SSDEEP 98304:QkPB2A0CzhjakJuw4JjXw+iypmkCZnkuCssiwCB1S8EAz:Q1A0CtjavN+A1CZnjCfpMS1Az
TLSH
T102B64A57ECA145E5C0AAD575CA269223BE713C884F3063E76B60F7242F72BD0AE79740
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download