masslogger | 2070d6db94c933ec9a30fc2c2fa0021518a254019b13bc5d4ead5cdb1a75beb0

General

Target

PO_01456.exe
Size

892KB
MD5

eaa8776e7fe85e8f5f8e240a94ff0eaf
SHA1

a83f3d2bf7cc0fe2e47357b3c5588572a0588f78
SHA256

f7ecd0e638cbffb3b985691c57451ea93845e8f16e4003d0f91ba3f02eb54c03
SHA512

c26877bf89520fd98aabf87c926352dc83986cfd1c0dde9740d326642579e19422c970b4f1b634cf5a2af584050af53ee4e3ab0c0db5ea1bd96c73f3f5e6c150

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\8236ADF044\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 10 Pro64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 7:02:22 AM MassLogger Started: 5/21/2022 7:01:40 AM Interval: 5 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO_01456.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

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

MassLogger Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4184-135-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.

Processes:

yara_rule

masslogger_log_file

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

Processes:

PO_01456.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	PO_01456.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 18 IoCs

collection

Email Collection

T1114

Processes:

PO_01456.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO_01456.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO_01456.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO_01456.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO_01456.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO_01456.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO_01456.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.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

36 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

PO_01456.exe

description pid process target process

PID 1948 set thread context of 4184 1948 PO_01456.exe PO_01456.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3836 4184 WerFault.exe PO_01456.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

PO_01456.exe

pid process

4184 PO_01456.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PO_01456.exe

description pid process

Token: SeDebugPrivilege 4184 PO_01456.exe

flow	ioc
36	api.ipify.org

description	pid	process	target process
PID 1948 set thread context of 4184	1948	PO_01456.exe	PO_01456.exe

pid	pid_target	process	target process
3836	4184	WerFault.exe	PO_01456.exe

pid	process
4184	PO_01456.exe

description	pid	process
Token: SeDebugPrivilege	4184	PO_01456.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

PO_01456.exe

description	pid	process	target process
PID 1948 wrote to memory of 4184	1948	PO_01456.exe	PO_01456.exe
PID 1948 wrote to memory of 4184	1948	PO_01456.exe	PO_01456.exe
PID 1948 wrote to memory of 4184	1948	PO_01456.exe	PO_01456.exe
PID 1948 wrote to memory of 4184	1948	PO_01456.exe	PO_01456.exe
PID 1948 wrote to memory of 4184	1948	PO_01456.exe	PO_01456.exe
PID 1948 wrote to memory of 4184	1948	PO_01456.exe	PO_01456.exe
PID 1948 wrote to memory of 4184	1948	PO_01456.exe	PO_01456.exe
PID 1948 wrote to memory of 4184	1948	PO_01456.exe	PO_01456.exe

outlook_office_path 1 IoCs

Processes:

PO_01456.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe

outlook_win_path 1 IoCs

Processes:

PO_01456.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_01456.exe

C:\Users\Admin\AppData\Local\Temp\PO_01456.exe
"C:\Users\Admin\AppData\Local\Temp\PO_01456.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1948

C:\Users\Admin\AppData\Local\Temp\PO_01456.exe
"{path}"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4184 -s 2112
3⤵
- Program crash
PID:3836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4184 -ip 4184
1⤵
PID:2944

Network

MITRE ATT&CK Matrix ATT&CK 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

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1948-130-0x00000000006B0000-0x0000000000796000-memory.dmp

Filesize
920KB

Download
memory/1948-131-0x00000000050F0000-0x000000000518C000-memory.dmp

Filesize
624KB

Download
memory/1948-132-0x0000000005230000-0x00000000052C2000-memory.dmp

Filesize
584KB

Download
memory/1948-133-0x0000000007200000-0x00000000077A4000-memory.dmp

Filesize
5.6MB

Download
memory/4184-134-0x0000000000000000-mapping.dmp

Download
memory/4184-135-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4184-136-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/4184-137-0x0000000007270000-0x000000000727A000-memory.dmp

Filesize
40KB

Download
memory/4184-138-0x00000000073D0000-0x0000000007420000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads