skuld | 9583979209fadf3861eff01c297c2d8355e65e75dad1b63cc60f9045b2db966e

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2025 20:54

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General

Target

2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Size

14.8MB
MD5

af24d11848de1fc38d1cb6c08d36d306
SHA1

acccb5e04025a64ef4a5c7708588749b04d155ff
SHA256

9583979209fadf3861eff01c297c2d8355e65e75dad1b63cc60f9045b2db966e
SHA512

f17fdb6166390159c5a5c107d64aba54b00567fa701a4f32f2a1a979435e0a0f77ff1d2a9c744b1383e8959f792711bf1ed9e36311f53b802ffc394ba6301bd5
SSDEEP

196608:4qZ4f/oCqKqc/3h4Po95Xx+29GAB7ob73mrVGwYdNE2vfUWf:TZ4XoBKH59AuM73gQDvfUWf

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
49	2852	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-1-5-21-1639772215-809007892-4072230623-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_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
2	api.ipify.org
6	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
4556	MicrosoftEdgeUpdate.exe

GoLang User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	7	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	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4952	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Token: SeIncreaseQuotaPrivilege	64	wmic.exe
Token: SeSecurityPrivilege	64	wmic.exe
Token: SeTakeOwnershipPrivilege	64	wmic.exe
Token: SeLoadDriverPrivilege	64	wmic.exe
Token: SeSystemProfilePrivilege	64	wmic.exe
Token: SeSystemtimePrivilege	64	wmic.exe
Token: SeProfSingleProcessPrivilege	64	wmic.exe
Token: SeIncBasePriorityPrivilege	64	wmic.exe
Token: SeCreatePagefilePrivilege	64	wmic.exe
Token: SeBackupPrivilege	64	wmic.exe
Token: SeRestorePrivilege	64	wmic.exe
Token: SeShutdownPrivilege	64	wmic.exe
Token: SeDebugPrivilege	64	wmic.exe
Token: SeSystemEnvironmentPrivilege	64	wmic.exe
Token: SeRemoteShutdownPrivilege	64	wmic.exe
Token: SeUndockPrivilege	64	wmic.exe
Token: SeManageVolumePrivilege	64	wmic.exe
Token: 33	64	wmic.exe
Token: 34	64	wmic.exe
Token: 35	64	wmic.exe
Token: 36	64	wmic.exe
Token: SeIncreaseQuotaPrivilege	64	wmic.exe
Token: SeSecurityPrivilege	64	wmic.exe
Token: SeTakeOwnershipPrivilege	64	wmic.exe
Token: SeLoadDriverPrivilege	64	wmic.exe
Token: SeSystemProfilePrivilege	64	wmic.exe
Token: SeSystemtimePrivilege	64	wmic.exe
Token: SeProfSingleProcessPrivilege	64	wmic.exe
Token: SeIncBasePriorityPrivilege	64	wmic.exe
Token: SeCreatePagefilePrivilege	64	wmic.exe
Token: SeBackupPrivilege	64	wmic.exe
Token: SeRestorePrivilege	64	wmic.exe
Token: SeShutdownPrivilege	64	wmic.exe
Token: SeDebugPrivilege	64	wmic.exe
Token: SeSystemEnvironmentPrivilege	64	wmic.exe
Token: SeRemoteShutdownPrivilege	64	wmic.exe
Token: SeUndockPrivilege	64	wmic.exe
Token: SeManageVolumePrivilege	64	wmic.exe
Token: 33	64	wmic.exe
Token: 34	64	wmic.exe
Token: 35	64	wmic.exe
Token: 36	64	wmic.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 544	4952	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	87
PID 4952 wrote to memory of 544	4952	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	87
PID 4952 wrote to memory of 4712	4952	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	88
PID 4952 wrote to memory of 4712	4952	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	88
PID 4952 wrote to memory of 64	4952	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	92
PID 4952 wrote to memory of 64	4952	2025-02-12_af24d11848de1fc38d1cb6c08d36d306_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
544	attrib.exe
4712	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_af24d11848de1fc38d1cb6c08d36d306_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:4952
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\2025-02-12_af24d11848de1fc38d1cb6c08d36d306_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
  2⤵
  - Views/modifies file attributes
  PID:544
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
  2⤵
  - Views/modifies file attributes
  PID:4712
- C:\Windows\System32\Wbem\wmic.exe
  wmic csproduct get UUID
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:64

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7OTJBQkE3QzgtQjYyQi00OEVCLUFCQjMtMTNDOTA0MzEwM0MzfSIgdXNlcmlkPSJ7OUQ2NzYxNjItOTBBNy00REI0LUI1ODEtNzk1NThDMzNEMERFfSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7NjI1QTkwQjQtMTkyQi00MzNCLUI0Q0ItNkU4OUY4QkU4ODMwfSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI1IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY4ODkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTM2NTgwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDU0MTQxOTEzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4556

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
af24d11848de1fc38d1cb6c08d36d306

SHA1
acccb5e04025a64ef4a5c7708588749b04d155ff

SHA256
9583979209fadf3861eff01c297c2d8355e65e75dad1b63cc60f9045b2db966e

SHA512
f17fdb6166390159c5a5c107d64aba54b00567fa701a4f32f2a1a979435e0a0f77ff1d2a9c744b1383e8959f792711bf1ed9e36311f53b802ffc394ba6301bd5

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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