masslogger | 96b5f52d87412fcfd96bcf1fa9f5162530af10a35bd7887a7cb7379aea191a9c

Analysis

max time kernel
137s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
21/02/2022, 10:57

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General

Target
OUR_NEW_.exe
Size 651KB
Sample220221-m2ncfahff4
SHA256 b5a3cf350d8aa4afa017d90a37e3206574774eefc57c36da525a89606d704025
MD5 7baac165106087233cbc5e41ab1174e5
SHA1 c4796a2d8612ef8dd11269641cb5cd532bea1256
SHA512 d7d6c9a2fcfd9563d6b7b7476e4d48649611bc94f397cb9e90313b994f2cac23987e3e4da6f698050967ccca10a2d0a14dd81b5215a1277faa08cab2ed8d70aa
MD5 SHA1 SHA512

Score

10^/10

masslogger collection spyware stealer

Malware Config

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4664-131-0x0000000000400000-0x0000000000496000-memory.dmp	family_masslogger

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	OUR_NEW_.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 42 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	OUR_NEW_.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.

flow	ioc
22	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3612 set thread context of 4664	3612	OUR_NEW_.exe	82

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4664	OUR_NEW_.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4664	OUR_NEW_.exe
4664	OUR_NEW_.exe
4664	OUR_NEW_.exe
4664	OUR_NEW_.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3612	OUR_NEW_.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4664	OUR_NEW_.exe
Token: SeShutdownPrivilege	4668	svchost.exe
Token: SeCreatePagefilePrivilege	4668	svchost.exe
Token: SeShutdownPrivilege	4668	svchost.exe
Token: SeCreatePagefilePrivilege	4668	svchost.exe
Token: SeShutdownPrivilege	4668	svchost.exe
Token: SeCreatePagefilePrivilege	4668	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4664	OUR_NEW_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 4664	3612	OUR_NEW_.exe	82
PID 3612 wrote to memory of 4664	3612	OUR_NEW_.exe	82
PID 3612 wrote to memory of 4664	3612	OUR_NEW_.exe	82
PID 3612 wrote to memory of 4664	3612	OUR_NEW_.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OUR_NEW_.exe

C:\Users\Admin\AppData\Local\Temp\OUR_NEW_.exe
"C:\Users\Admin\AppData\Local\Temp\OUR_NEW_.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Users\Admin\AppData\Local\Temp\OUR_NEW_.exe
  "C:\Users\Admin\AppData\Local\Temp\OUR_NEW_.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:4664

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4668

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3612-130-0x00000000004FD000-0x0000000000500000-memory.dmp

Download

memory/4664-138-0x0000000006390000-0x0000000006934000-memory.dmp

Download

memory/4664-144-0x0000000005957000-0x0000000005959000-memory.dmp

Download

memory/4664-131-0x0000000000400000-0x0000000000496000-memory.dmp

Download

memory/4664-134-0x0000000005952000-0x0000000005953000-memory.dmp

Download

memory/4664-136-0x0000000005954000-0x0000000005955000-memory.dmp

Download

memory/4664-135-0x0000000005953000-0x0000000005954000-memory.dmp

Download

memory/4664-137-0x0000000005D40000-0x0000000005DD2000-memory.dmp

Download

memory/4664-132-0x000000007498E000-0x000000007498F000-memory.dmp

Download

memory/4664-133-0x0000000005950000-0x0000000005951000-memory.dmp

Download

memory/4664-147-0x00000000075F0000-0x000000000768C000-memory.dmp

Download

memory/4664-139-0x0000000006C30000-0x0000000006C96000-memory.dmp

Download

memory/4664-146-0x00000000074A0000-0x00000000074AA000-memory.dmp

Download

memory/4664-143-0x0000000075485000-0x0000000075486000-memory.dmp

Download

memory/4664-145-0x00000000074F0000-0x0000000007540000-memory.dmp

Download

memory/4668-141-0x000002B51D680000-0x000002B51D690000-memory.dmp

Download

memory/4668-142-0x000002B51FD50000-0x000002B51FD54000-memory.dmp

Download

memory/4668-140-0x000002B51D620000-0x000002B51D630000-memory.dmp

Download