skuld | 0939d0feb44f3cd7ce0d18ad8bf5ab589aeeff42f43b2a2a4fb43bb6666a8485

Analysis

max time kernel
95s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20250211-en
resource tags

arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
submitted
16-02-2025 19:04

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General

Target

2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Size

14.8MB
MD5

0e26fb260ff03a040563a9e959169dcb
SHA1

959f06bdd27f26de50fa62cecae90cd9d2abc0e8
SHA256

0939d0feb44f3cd7ce0d18ad8bf5ab589aeeff42f43b2a2a4fb43bb6666a8485
SHA512

52c0fcc56aac61f98ed8e65fe15753f0c35ae5881afcc87a45b5f0c90e9958cf3be1f181cf3ace9efafead91fa5594b53b9799dc9ddc73bb2cab57bc9d753f5f
SSDEEP

196608:4qZ4f/oCqKqc/3h4Po95Xx+29GAB7ob73mrVGwYdNE2vfUWc:TZ4XoBKH59AuM73gQDvfUWc

Score

10^/10

skuld discovery persistence stealer

Malware Config

Extracted

Family

skuld

https://ptb.discord.com/api/webhooks/1331762319012659321/iwnBhcdBis01WFBWpqJG9rYThk7-WhDDTh6m7jXrOXbNEJKcRQ9UVmGerYdicCteoenN

Signatures

Skuld family
skuld
Skuld stealer
An info stealer written in Go lang.
stealer skuld

Downloads MZ/PE file 1 IoCs

flow	pid	Process
52	3132	Process not Found

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-1-5-21-1318997816-2171176372-1451785247-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.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
6	api.ipify.org
8	ip-api.com

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3060	MicrosoftEdgeUpdate.exe

GoLang User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	9	Go-http-client/1.1

Modifies system certificate store 2 TTPs 3 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4640	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Token: SeIncreaseQuotaPrivilege	1952	wmic.exe
Token: SeSecurityPrivilege	1952	wmic.exe
Token: SeTakeOwnershipPrivilege	1952	wmic.exe
Token: SeLoadDriverPrivilege	1952	wmic.exe
Token: SeSystemProfilePrivilege	1952	wmic.exe
Token: SeSystemtimePrivilege	1952	wmic.exe
Token: SeProfSingleProcessPrivilege	1952	wmic.exe
Token: SeIncBasePriorityPrivilege	1952	wmic.exe
Token: SeCreatePagefilePrivilege	1952	wmic.exe
Token: SeBackupPrivilege	1952	wmic.exe
Token: SeRestorePrivilege	1952	wmic.exe
Token: SeShutdownPrivilege	1952	wmic.exe
Token: SeDebugPrivilege	1952	wmic.exe
Token: SeSystemEnvironmentPrivilege	1952	wmic.exe
Token: SeRemoteShutdownPrivilege	1952	wmic.exe
Token: SeUndockPrivilege	1952	wmic.exe
Token: SeManageVolumePrivilege	1952	wmic.exe
Token: 33	1952	wmic.exe
Token: 34	1952	wmic.exe
Token: 35	1952	wmic.exe
Token: 36	1952	wmic.exe
Token: SeIncreaseQuotaPrivilege	1952	wmic.exe
Token: SeSecurityPrivilege	1952	wmic.exe
Token: SeTakeOwnershipPrivilege	1952	wmic.exe
Token: SeLoadDriverPrivilege	1952	wmic.exe
Token: SeSystemProfilePrivilege	1952	wmic.exe
Token: SeSystemtimePrivilege	1952	wmic.exe
Token: SeProfSingleProcessPrivilege	1952	wmic.exe
Token: SeIncBasePriorityPrivilege	1952	wmic.exe
Token: SeCreatePagefilePrivilege	1952	wmic.exe
Token: SeBackupPrivilege	1952	wmic.exe
Token: SeRestorePrivilege	1952	wmic.exe
Token: SeShutdownPrivilege	1952	wmic.exe
Token: SeDebugPrivilege	1952	wmic.exe
Token: SeSystemEnvironmentPrivilege	1952	wmic.exe
Token: SeRemoteShutdownPrivilege	1952	wmic.exe
Token: SeUndockPrivilege	1952	wmic.exe
Token: SeManageVolumePrivilege	1952	wmic.exe
Token: 33	1952	wmic.exe
Token: 34	1952	wmic.exe
Token: 35	1952	wmic.exe
Token: 36	1952	wmic.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4640 wrote to memory of 1840	4640	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	88
PID 4640 wrote to memory of 1840	4640	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	88
PID 4640 wrote to memory of 2500	4640	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	89
PID 4640 wrote to memory of 2500	4640	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	89
PID 4640 wrote to memory of 1952	4640	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	92
PID 4640 wrote to memory of 1952	4640	2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	92

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2500	attrib.exe
1840	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe"
1⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4640
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\2025-02-16_0e26fb260ff03a040563a9e959169dcb_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
  2⤵
  - Views/modifies file attributes
  PID:1840
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
  2⤵
  - Views/modifies file attributes
  PID:2500
- C:\Windows\System32\Wbem\wmic.exe
  wmic csproduct get UUID
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1952

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI1IiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMzNzEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDE5Mjc1MzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDM0NTQxNTM5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3060

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

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe

Filesize
14.8MB

MD5
0e26fb260ff03a040563a9e959169dcb

SHA1
959f06bdd27f26de50fa62cecae90cd9d2abc0e8

SHA256
0939d0feb44f3cd7ce0d18ad8bf5ab589aeeff42f43b2a2a4fb43bb6666a8485

SHA512
52c0fcc56aac61f98ed8e65fe15753f0c35ae5881afcc87a45b5f0c90e9958cf3be1f181cf3ace9efafead91fa5594b53b9799dc9ddc73bb2cab57bc9d753f5f

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads