skuld | 5dc88f47dfefad9feb60493de86d4bbdd407b158f4b6c768759e726ce497754f

General

Target

LoPi.exe
Size

9.9MB
MD5

1abd63f11821dd425441e659c890632b
SHA1

e4772d6e84217f0c0ff15aa5580a13f3424d2ac0
SHA256

5dc88f47dfefad9feb60493de86d4bbdd407b158f4b6c768759e726ce497754f
SHA512

29eeab5c7c06b83f0557a375c3faf1fd868dfb2d89f2035728197a45bcb664e951fabfbb5191857beb576a8de3a009aef2f7a760d52305c14c754573e9d3b06e
SSDEEP

98304:hzU4brhxBASgf/gEpiji6Ig8TWA7EIICafZm/mbnXg:hxrhxBAGZji6IdThoRTXg

Score

10^/10

skuld persistence stealer

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1296197362108338248/k492vQ1I3SDXcmvWcvsy2EcSUzrwhNmILrYhR3qSF8R7tkcE-C5GgZSxuS3IlNschBWg

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

LoPi.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe"	LoPi.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.

Processes:

flow ioc

6 api.ipify.org
7 api.ipify.org
8 ip-api.com
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.

Processes:

description flow ioc

HTTP User-Agent header 9 Go-http-client/1.1

flow	ioc
6	api.ipify.org
7	api.ipify.org
8	ip-api.com

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

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

LoPi.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C	LoPi.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	LoPi.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	LoPi.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

Processes:

LoPi.exewmic.exe

description	pid	process
Token: SeDebugPrivilege	4420	LoPi.exe
Token: SeIncreaseQuotaPrivilege	4240	wmic.exe
Token: SeSecurityPrivilege	4240	wmic.exe
Token: SeTakeOwnershipPrivilege	4240	wmic.exe
Token: SeLoadDriverPrivilege	4240	wmic.exe
Token: SeSystemProfilePrivilege	4240	wmic.exe
Token: SeSystemtimePrivilege	4240	wmic.exe
Token: SeProfSingleProcessPrivilege	4240	wmic.exe
Token: SeIncBasePriorityPrivilege	4240	wmic.exe
Token: SeCreatePagefilePrivilege	4240	wmic.exe
Token: SeBackupPrivilege	4240	wmic.exe
Token: SeRestorePrivilege	4240	wmic.exe
Token: SeShutdownPrivilege	4240	wmic.exe
Token: SeDebugPrivilege	4240	wmic.exe
Token: SeSystemEnvironmentPrivilege	4240	wmic.exe
Token: SeRemoteShutdownPrivilege	4240	wmic.exe
Token: SeUndockPrivilege	4240	wmic.exe
Token: SeManageVolumePrivilege	4240	wmic.exe
Token: 33	4240	wmic.exe
Token: 34	4240	wmic.exe
Token: 35	4240	wmic.exe
Token: 36	4240	wmic.exe
Token: SeIncreaseQuotaPrivilege	4240	wmic.exe
Token: SeSecurityPrivilege	4240	wmic.exe
Token: SeTakeOwnershipPrivilege	4240	wmic.exe
Token: SeLoadDriverPrivilege	4240	wmic.exe
Token: SeSystemProfilePrivilege	4240	wmic.exe
Token: SeSystemtimePrivilege	4240	wmic.exe
Token: SeProfSingleProcessPrivilege	4240	wmic.exe
Token: SeIncBasePriorityPrivilege	4240	wmic.exe
Token: SeCreatePagefilePrivilege	4240	wmic.exe
Token: SeBackupPrivilege	4240	wmic.exe
Token: SeRestorePrivilege	4240	wmic.exe
Token: SeShutdownPrivilege	4240	wmic.exe
Token: SeDebugPrivilege	4240	wmic.exe
Token: SeSystemEnvironmentPrivilege	4240	wmic.exe
Token: SeRemoteShutdownPrivilege	4240	wmic.exe
Token: SeUndockPrivilege	4240	wmic.exe
Token: SeManageVolumePrivilege	4240	wmic.exe
Token: 33	4240	wmic.exe
Token: 34	4240	wmic.exe
Token: 35	4240	wmic.exe
Token: 36	4240	wmic.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

LoPi.exe

description	pid	process	target process
PID 4420 wrote to memory of 2384	4420	LoPi.exe	attrib.exe
PID 4420 wrote to memory of 2384	4420	LoPi.exe	attrib.exe
PID 4420 wrote to memory of 1840	4420	LoPi.exe	attrib.exe
PID 4420 wrote to memory of 1840	4420	LoPi.exe	attrib.exe
PID 4420 wrote to memory of 4240	4420	LoPi.exe	wmic.exe
PID 4420 wrote to memory of 4240	4420	LoPi.exe	wmic.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

2384 attrib.exe
1840 attrib.exe

pid	process
2384	attrib.exe
1840	attrib.exe

C:\Users\Admin\AppData\Local\Temp\LoPi.exe
"C:\Users\Admin\AppData\Local\Temp\LoPi.exe"
1⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Local\Temp\LoPi.exe
  2⤵
  - Views/modifies file attributes
  PID:2384
- C:\Windows\system32\attrib.exe
  attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
  2⤵
  - Views/modifies file attributes
  PID:1840
- C:\Windows\System32\Wbem\wmic.exe
  wmic csproduct get UUID
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
9.9MB

MD5
1abd63f11821dd425441e659c890632b

SHA1
e4772d6e84217f0c0ff15aa5580a13f3424d2ac0

SHA256
5dc88f47dfefad9feb60493de86d4bbdd407b158f4b6c768759e726ce497754f

SHA512
29eeab5c7c06b83f0557a375c3faf1fd868dfb2d89f2035728197a45bcb664e951fabfbb5191857beb576a8de3a009aef2f7a760d52305c14c754573e9d3b06e

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads