masslogger | 27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990

Analysis

max time kernel
52s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
17/04/2022, 07:53

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General

Target
27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Size 1.6MB
Sample220417-jrcleabebk
SHA256 27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990
MD5 f5ba983bc18a11b81d4ef14d933053ae
SHA1 0d43985475f4f9a33e242fb2c45ec2245ff0093f
SHA512 484bebb520440dbb61f3e4bfb30f95491ca8125d5892dde4434eae13986524e6a8b57279fa960ae9cae88e1d5592033b1e89562ac38d2c88eb170b251efa293e
MD5 SHA1 SHA512

Score

10^/10

masslogger collection persistence 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/3440-133-0x0000000000400000-0x0000000000486000-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-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.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 created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vlc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\VideoLAN\\vlc.exe\""	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.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
7	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3576 set thread context of 3440	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	78

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3440	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
3440	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
3440	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
3440	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
3440	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
Token: SeDebugPrivilege	3440	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3440	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 1656	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	77
PID 3576 wrote to memory of 1656	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	77
PID 3576 wrote to memory of 1656	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	77
PID 3576 wrote to memory of 3440	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	78
PID 3576 wrote to memory of 3440	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	78
PID 3576 wrote to memory of 3440	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	78
PID 3576 wrote to memory of 3440	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	78
PID 3576 wrote to memory of 3440	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	78
PID 3576 wrote to memory of 3440	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	78
PID 3576 wrote to memory of 3440	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	78
PID 3576 wrote to memory of 3440	3576	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe	78

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe

C:\Users\Admin\AppData\Local\Temp\27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
"C:\Users\Admin\AppData\Local\Temp\27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3576
- C:\Users\Admin\AppData\Local\Temp\27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
  "C:\Users\Admin\AppData\Local\Temp\27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe"
  2⤵
  PID:1656
- C:\Users\Admin\AppData\Local\Temp\27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.exe
  "C:\Users\Admin\AppData\Local\Temp\27ec38fc9ae3342ab62c45078d58c6c133aa4afe63ed71847b06c99ab6209990.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:3440

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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/3440-133-0x0000000000400000-0x0000000000486000-memory.dmp

Download

memory/3440-134-0x0000000005A90000-0x0000000005B22000-memory.dmp

Download

memory/3440-135-0x00000000060E0000-0x0000000006684000-memory.dmp

Download

memory/3440-136-0x0000000006980000-0x00000000069E6000-memory.dmp

Download

memory/3440-137-0x00000000072F0000-0x0000000007340000-memory.dmp

Download

memory/3440-138-0x0000000007280000-0x000000000728A000-memory.dmp

Download

memory/3440-139-0x00000000073E0000-0x000000000747C000-memory.dmp

Download

memory/3576-130-0x00000000009F0000-0x0000000000B96000-memory.dmp

Download