masslogger | b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed

General

Target

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Size

1.4MB
MD5

ca7957bbdbd7829ab15c624367f3b82f
SHA1

de862cb3c487d36ab954bbd2d7cce9bb217c8b09
SHA256

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed
SHA512

f9ab5a37f57d751b84ebb362fe2431bad8dd1b68cdeb221aa9856a77c02dbff0f55c6783a6438356b09960bee0aa3b4cedf866910a65e6a19d21bb0bb278725a

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 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/948-63-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/948-64-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/948-65-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/948-66-0x00000000004817EE-mapping.dmp	family_masslogger
behavioral1/memory/948-68-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/948-70-0x0000000000400000-0x0000000000486000-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

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.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

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.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

Suspicious use of SetThreadContext 1 IoCs

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

description	pid	process	target process
PID 1860 set thread context of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

pid process

948 b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

pid	process
948	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exeb55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

pid	process
1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
948	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
948	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
948	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
948	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exeb55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

description	pid	process
Token: SeDebugPrivilege	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
Token: SeDebugPrivilege	948	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

pid process

948 b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

pid	process
948	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

description	pid	process	target process
PID 1860 wrote to memory of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
PID 1860 wrote to memory of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
PID 1860 wrote to memory of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
PID 1860 wrote to memory of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
PID 1860 wrote to memory of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
PID 1860 wrote to memory of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
PID 1860 wrote to memory of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
PID 1860 wrote to memory of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
PID 1860 wrote to memory of 948	1860	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

outlook_office_path 1 IoCs

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

outlook_win_path 1 IoCs

Processes:

b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe

C:\Users\Admin\AppData\Local\Temp\b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
"C:\Users\Admin\AppData\Local\Temp\b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Users\Admin\AppData\Local\Temp\b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.exe
  "C:\Users\Admin\AppData\Local\Temp\b55cc68932bd36e0d0da05c5c40afd2416e6a505822584667780b48e469f22ed.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:948

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

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Downloads

memory/948-64-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/948-65-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/948-71-0x0000000000735000-0x0000000000746000-memory.dmp

Filesize
68KB

Download
memory/948-70-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/948-68-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/948-66-0x00000000004817EE-mapping.dmp

Download
memory/948-61-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/948-63-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/948-60-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1860-54-0x0000000000C70000-0x0000000000DE6000-memory.dmp

Filesize
1.5MB

Download
memory/1860-55-0x00000000084A0000-0x000000000857C000-memory.dmp

Filesize
880KB

Download
memory/1860-59-0x0000000006280000-0x0000000006308000-memory.dmp

Filesize
544KB

Download
memory/1860-58-0x0000000000410000-0x000000000041A000-memory.dmp

Filesize
40KB

Download
memory/1860-57-0x00000000061C0000-0x000000000627E000-memory.dmp

Filesize
760KB

Download
memory/1860-56-0x00000000001E0000-0x00000000001FC000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads