masslogger | c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c

General

Target

c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Size

497KB
MD5

b90c9796b39b6664c55ec18526bde217
SHA1

ad273a63860bc98579e657adfcc323d55c4dda4c
SHA256

c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c
SHA512

0d293b649ee1c86df46923df783b63e187cdafe11e1f0af323c863774938b6e85993682ff2cd084b64152dc45e9d51e7f04375af60ebb67bda03c11491f18dc0

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

################################################################# MassLogger v2.0.0.0 ################################################################# ### Logger Details ### User Name: Admin IP: 127.0.0.1 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: 5/25/2022 3:16:27 AM MassLogger Started: 5/25/2022 3:15:58 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes:

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware 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	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2020	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2020	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.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	c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe

C:\Users\Admin\AppData\Local\Temp\c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe
"C:\Users\Admin\AppData\Local\Temp\c87fa3ba0611689621a7c868d32f9d0bb1e5d557727639b72fc8804f834a3c6c.exe"
1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2020-54-0x0000000000F50000-0x0000000000FD2000-memory.dmp

Filesize
520KB

Download
memory/2020-55-0x0000000000A40000-0x0000000000A84000-memory.dmp

Filesize
272KB

Download
memory/2020-56-0x00000000755C1000-0x00000000755C3000-memory.dmp

Filesize
8KB

Download
memory/2020-57-0x0000000000460000-0x0000000000474000-memory.dmp

Filesize
80KB

Download
memory/2020-58-0x0000000004BA5000-0x0000000004BB6000-memory.dmp

Filesize
68KB

Download

Analysis

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