xorium_stealer | d3a9a6bef9235736d16fbb5ae1239973528c6111e343e594d52cb26b4a8325dd

General

Target
stub.exe
Size 270KB
Sample260706-l1bftads6x
SHA256 d3a9a6bef9235736d16fbb5ae1239973528c6111e343e594d52cb26b4a8325dd
MD5 7af52a6b8df0806249bb5d0726cf9f98
SHA1 d1860e60c51164e139fa651a10483858de6910f7
SHA512 df72d544533045e45980e7577b74a40cd12998a79df57b3c5c45fdde692495db0e113cb96f6a80cd0af3afcabc9e668d52b2f828d4b468309ff10adc2c7bbccb
SSDEEP 3072:a4i5soxnlh9LDthje2tpZDzH4cacMwK+odL55EOabSkirKYhR3UHE+XHW6Yz:arHLDHdXy3waLQnWrKY8Y
TLSH
T13F4429A833F88A10F6BF8B75987595444776B967AD17E70D198660CC2F32B90CE24F23
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

collection discovery xorium_stealer persistence privilege_escalation spyware stealer

Malware Config

Extracted

Family

xorium_stealer

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36

Signatures

Family: XoriumStealer
XoriumStealer is an information stealer written in C#.
stealer xorium_stealer

Detects XoriumStealer payload 1 IoCs

resource	yara_rule
behavioral2/memory/4432-1-0x000001AE37F10000-0x000001AE37F56000-memory.dmp	family_xorium_stealer

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1086369643-1618123105-2567081378-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stub.exe
Key opened	\REGISTRY\USER\S-1-5-21-1086369643-1618123105-2567081378-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stub.exe
Key opened	\REGISTRY\USER\S-1-5-21-1086369643-1618123105-2567081378-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stub.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	icanhazip.com
1	ip-api.com

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
5464	netsh.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	stub.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	stub.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4432	stub.exe
4432	stub.exe
4432	stub.exe
4432	stub.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4432	stub.exe
Token: SeDebugPrivilege	4432	stub.exe
Token: SeDebugPrivilege	4432	stub.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4432 wrote to memory of 6052	4432	stub.exe	88
PID 4432 wrote to memory of 5464	4432	stub.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1086369643-1618123105-2567081378-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stub.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1086369643-1618123105-2567081378-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	stub.exe

C:\Users\Admin\AppData\Local\Temp\stub.exe
"C:\Users\Admin\AppData\Local\Temp\stub.exe"
1⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4432
- C:\Windows\SYSTEM32\netsh.exe
  "netsh" wlan export profile key=clear folder="C:\Users\Admin\AppData\Local\Temp\IntelixWifiExport_69d7ee66eb4d443392f95666f01f3240"
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  PID:6052
- C:\Windows\SYSTEM32\netsh.exe
  "netsh" wlan show profiles
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  - System Network Configuration Discovery: Wi-Fi Discovery
  PID:5464