masslogger | f9abeb7ba32ac4b84d855503d607cfe2fc79f147512db0871a262d53c560c5c1

System Information Discovery

Processes:

catalogues lists.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	catalogues lists.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	catalogues lists.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

catalogues lists.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	catalogues lists.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

Processes:

catalogues lists.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	catalogues lists.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	catalogues lists.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	catalogues lists.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	catalogues lists.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	catalogues lists.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	catalogues lists.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org

flow	ioc
4	api.ipify.org

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

catalogues lists.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	catalogues lists.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	catalogues lists.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

catalogues lists.exe

description pid process target process

PID 2024 set thread context of 1388 2024 catalogues lists.exe catalogues lists.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1088 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

catalogues lists.exe

pid process

1388 catalogues lists.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

catalogues lists.execatalogues lists.exe

pid process

2024 catalogues lists.exe
1388 catalogues lists.exe
1388 catalogues lists.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

catalogues lists.execatalogues lists.exe

description pid process

Token: SeDebugPrivilege 2024 catalogues lists.exe
Token: SeDebugPrivilege 1388 catalogues lists.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

catalogues lists.exe

pid process

1388 catalogues lists.exe

description	pid	process	target process
PID 2024 set thread context of 1388	2024	catalogues lists.exe	catalogues lists.exe

pid	process
1088	schtasks.exe

pid	process
1388	catalogues lists.exe

pid	process
2024	catalogues lists.exe
1388	catalogues lists.exe
1388	catalogues lists.exe

description	pid	process
Token: SeDebugPrivilege	2024	catalogues lists.exe
Token: SeDebugPrivilege	1388	catalogues lists.exe

pid	process
1388	catalogues lists.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

catalogues lists.exe

description	pid	process	target process
PID 2024 wrote to memory of 1088	2024	catalogues lists.exe	schtasks.exe
PID 2024 wrote to memory of 1088	2024	catalogues lists.exe	schtasks.exe
PID 2024 wrote to memory of 1088	2024	catalogues lists.exe	schtasks.exe
PID 2024 wrote to memory of 1088	2024	catalogues lists.exe	schtasks.exe
PID 2024 wrote to memory of 664	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 664	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 664	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 664	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 1388	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 1388	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 1388	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 1388	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 1388	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 1388	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 1388	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 1388	2024	catalogues lists.exe	catalogues lists.exe
PID 2024 wrote to memory of 1388	2024	catalogues lists.exe	catalogues lists.exe

outlook_office_path 1 IoCs

Processes:

catalogues lists.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe

outlook_win_path 1 IoCs

Processes:

catalogues lists.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catalogues lists.exe

C:\Users\Admin\AppData\Local\Temp\catalogues lists.exe
"C:\Users\Admin\AppData\Local\Temp\catalogues lists.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZBHCZCxhdAG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8C78.tmp"
2⤵
- Creates scheduled task(s)
PID:1088

C:\Users\Admin\AppData\Local\Temp\catalogues lists.exe
"C:\Users\Admin\AppData\Local\Temp\catalogues lists.exe"
2⤵
PID:664

C:\Users\Admin\AppData\Local\Temp\catalogues lists.exe
"C:\Users\Admin\AppData\Local\Temp\catalogues lists.exe"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1388

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

5

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

4

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Email Collection