skuld | 84d77893364a00f1433ec893b7897b21f06f62fa09beafbbc4426d3beb8d1886

Analysis

max time kernel
113s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
07-02-2025 18:43

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General

Target

2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Size

14.8MB
MD5

dbe5700f14222bb71dc39f3353e51827
SHA1

2a080beb54a6c64d012a0aad80b4444203092d17
SHA256

84d77893364a00f1433ec893b7897b21f06f62fa09beafbbc4426d3beb8d1886
SHA512

531a0960882fba615ad467072052cf6c94009e3b708383e548ddba72a688878624c5d2ad6b2ed51ce256b0a3f03c3bcfc9f30e04e962e916fc3ed176aace4b67
SSDEEP

196608:4qZ4f/oCqKqc/3h4Po95Xx+29GAB7ob73mrVGwYdNE2vfUWv:TZ4XoBKH59AuM73gQDvfUWv

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
32	4932	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-1-5-21-3591594829-2464889670-1367169939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	2025-02-07_dbe5700f14222bb71dc39f3353e51827_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
4	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
2544	MicrosoftEdgeUpdate.exe

GoLang User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	5	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	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	3380	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
Token: SeIncreaseQuotaPrivilege	4976	wmic.exe
Token: SeSecurityPrivilege	4976	wmic.exe
Token: SeTakeOwnershipPrivilege	4976	wmic.exe
Token: SeLoadDriverPrivilege	4976	wmic.exe
Token: SeSystemProfilePrivilege	4976	wmic.exe
Token: SeSystemtimePrivilege	4976	wmic.exe
Token: SeProfSingleProcessPrivilege	4976	wmic.exe
Token: SeIncBasePriorityPrivilege	4976	wmic.exe
Token: SeCreatePagefilePrivilege	4976	wmic.exe
Token: SeBackupPrivilege	4976	wmic.exe
Token: SeRestorePrivilege	4976	wmic.exe
Token: SeShutdownPrivilege	4976	wmic.exe
Token: SeDebugPrivilege	4976	wmic.exe
Token: SeSystemEnvironmentPrivilege	4976	wmic.exe
Token: SeRemoteShutdownPrivilege	4976	wmic.exe
Token: SeUndockPrivilege	4976	wmic.exe
Token: SeManageVolumePrivilege	4976	wmic.exe
Token: 33	4976	wmic.exe
Token: 34	4976	wmic.exe
Token: 35	4976	wmic.exe
Token: 36	4976	wmic.exe
Token: SeIncreaseQuotaPrivilege	4976	wmic.exe
Token: SeSecurityPrivilege	4976	wmic.exe
Token: SeTakeOwnershipPrivilege	4976	wmic.exe
Token: SeLoadDriverPrivilege	4976	wmic.exe
Token: SeSystemProfilePrivilege	4976	wmic.exe
Token: SeSystemtimePrivilege	4976	wmic.exe
Token: SeProfSingleProcessPrivilege	4976	wmic.exe
Token: SeIncBasePriorityPrivilege	4976	wmic.exe
Token: SeCreatePagefilePrivilege	4976	wmic.exe
Token: SeBackupPrivilege	4976	wmic.exe
Token: SeRestorePrivilege	4976	wmic.exe
Token: SeShutdownPrivilege	4976	wmic.exe
Token: SeDebugPrivilege	4976	wmic.exe
Token: SeSystemEnvironmentPrivilege	4976	wmic.exe
Token: SeRemoteShutdownPrivilege	4976	wmic.exe
Token: SeUndockPrivilege	4976	wmic.exe
Token: SeManageVolumePrivilege	4976	wmic.exe
Token: 33	4976	wmic.exe
Token: 34	4976	wmic.exe
Token: 35	4976	wmic.exe
Token: 36	4976	wmic.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 2284	3380	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	88
PID 3380 wrote to memory of 2284	3380	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	88
PID 3380 wrote to memory of 4012	3380	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	89
PID 3380 wrote to memory of 4012	3380	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	89
PID 3380 wrote to memory of 4976	3380	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	90
PID 3380 wrote to memory of 4976	3380	2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe	90

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2284	attrib.exe
4012	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_dbe5700f14222bb71dc39f3353e51827_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:3380
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\2025-02-07_dbe5700f14222bb71dc39f3353e51827_frostygoop_luca-stealer_ngrbot_poet-rat_snatch.exe
  2⤵
  - Views/modifies file attributes
  PID:2284
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
  2⤵
  - Views/modifies file attributes
  PID:4012
- C:\Windows\System32\Wbem\wmic.exe
  wmic csproduct get UUID
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4976

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU1NzgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODAxNjUyMzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjQyMzQ4MDEzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2544

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
dbe5700f14222bb71dc39f3353e51827

SHA1
2a080beb54a6c64d012a0aad80b4444203092d17

SHA256
84d77893364a00f1433ec893b7897b21f06f62fa09beafbbc4426d3beb8d1886

SHA512
531a0960882fba615ad467072052cf6c94009e3b708383e548ddba72a688878624c5d2ad6b2ed51ce256b0a3f03c3bcfc9f30e04e962e916fc3ed176aace4b67

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads