masslogger | b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9

Analysis

max time kernel
107s
max time network
161s
platform
windows7_x64
resource
win7-20220414-en
submitted
02-05-2022 15:14

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General

Target

b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Size

2.0MB
MD5

b98d51b689e39cc95a22bcd79f678260
SHA1

9d127c0a223f191b8c640fccdaef0d23e8f85d6b
SHA256

b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9
SHA512

6989829315ebc0bad5fa66b8ae57d498c0a2e5a4cc789a6ef189c42436131f486eff1c92e8352b2ce77186a096bb6674e92391da434416c56febbfb4f42326d8

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note

<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/2/2022 5:59:12 PM MassLogger Started: 5/2/2022 5:58:43 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Signatures

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

MassLogger Main Payload 6 IoCs

resource	yara_rule
behavioral1/memory/1084-63-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1084-64-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1084-65-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1084-66-0x00000000004941AE-mapping.dmp	family_masslogger
behavioral1/memory/1084-68-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1084-70-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.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 35 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.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
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1668 set thread context of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1084	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1420	Powershell.exe
1084	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
1084	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
Token: SeDebugPrivilege	1420	Powershell.exe
Token: SeDebugPrivilege	1084	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1084	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 1420	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	28
PID 1668 wrote to memory of 1420	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	28
PID 1668 wrote to memory of 1420	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	28
PID 1668 wrote to memory of 1420	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	28
PID 1668 wrote to memory of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30
PID 1668 wrote to memory of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30
PID 1668 wrote to memory of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30
PID 1668 wrote to memory of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30
PID 1668 wrote to memory of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30
PID 1668 wrote to memory of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30
PID 1668 wrote to memory of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30
PID 1668 wrote to memory of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30
PID 1668 wrote to memory of 1084	1668	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe

C:\Users\Admin\AppData\Local\Temp\b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
"C:\Users\Admin\AppData\Local\Temp\b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\VideoLAN\vlc.exe"'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1420
- C:\Users\Admin\AppData\Local\Temp\b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.exe
  "C:\Users\Admin\AppData\Local\Temp\b9d5200302ab75b343ea934c8993066e5e414d75201edec551d3e4852b872bd9.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:1084

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/1084-70-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1084-68-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1084-64-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1084-75-0x0000000002410000-0x0000000002424000-memory.dmp

Filesize
80KB

Download
memory/1084-65-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1084-61-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1084-60-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1084-74-0x0000000002235000-0x0000000002246000-memory.dmp

Filesize
68KB

Download
memory/1084-71-0x00000000004A0000-0x00000000004E4000-memory.dmp

Filesize
272KB

Download
memory/1084-63-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1420-72-0x000000006FC40000-0x00000000701EB000-memory.dmp

Filesize
5.7MB

Download
memory/1668-54-0x00000000008F0000-0x0000000000AEC000-memory.dmp

Filesize
2.0MB

Download
memory/1668-55-0x00000000004A0000-0x0000000000510000-memory.dmp

Filesize
448KB

Download
memory/1668-58-0x0000000000200000-0x0000000000212000-memory.dmp

Filesize
72KB

Download
memory/1668-56-0x0000000075371000-0x0000000075373000-memory.dmp

Filesize
8KB

Download