masslogger | a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd

General

Target

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Size

1.3MB
MD5

9a4bb2ca5dccc84a90fc2fd2276023fa
SHA1

c541e7269e3b125bf947ab9b5069f3929b7baa92
SHA256

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd
SHA512

a7d16010fc5c56fd296c5832410ff459f4f0353e290f4238d413e9a40f064469d17c2253a1c59b2b1622b4e93884f87d136293f3ef5dc4c7666396820dcabd83

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.6.0 ################################################################# ### Logger Details ### 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: 5/25/2022 1:34:29 AM MassLogger Started: 5/25/2022 1:34:21 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
mail.porathacorp.com
Port:
587
Username:
devarajan@porathacorp.com
Password:
susila@22

Signatures

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

MassLogger Main Payload 32 IoCs

Processes:

resource	yara_rule
behavioral1/memory/964-56-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-57-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-61-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-63-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-65-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-67-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-69-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-73-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-75-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-77-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-71-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-79-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-83-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-81-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-85-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-95-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-97-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-93-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-91-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-89-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-87-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-99-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-103-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-107-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-111-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-109-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-105-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-115-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-117-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-119-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-113-0x0000000001F50000-0x0000000002002000-memory.dmp	family_masslogger
behavioral1/memory/964-101-0x0000000001F50000-0x0000000002002000-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:

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.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

Processes:

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.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:

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

description	pid	process	target process
PID 880 set thread context of 964	880	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exea556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

pid	process
880	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
964	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

pid process

880 a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

description pid process

Token: SeDebugPrivilege 964 a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

description	pid	process
Token: SeDebugPrivilege	964	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

description	pid	process	target process
PID 880 wrote to memory of 964	880	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
PID 880 wrote to memory of 964	880	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
PID 880 wrote to memory of 964	880	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
PID 880 wrote to memory of 964	880	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

outlook_office_path 1 IoCs

Processes:

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

outlook_win_path 1 IoCs

Processes:

a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe

C:\Users\Admin\AppData\Local\Temp\a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
"C:\Users\Admin\AppData\Local\Temp\a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:880

C:\Users\Admin\AppData\Local\Temp\a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe
"C:\Users\Admin\AppData\Local\Temp\a556b45b3d2247dc814a2100a0827b1d68d87ec670a1e6791f6e67926cdad4bd.exe"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:964

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

Replay Monitor

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Downloads

memory/880-59-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/880-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/964-95-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-61-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-55-0x0000000000579440-mapping.dmp

Download
memory/964-97-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-63-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-65-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-67-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-69-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-73-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-75-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-77-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-71-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-79-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-83-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-81-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-85-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-56-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-93-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-57-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-91-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-89-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-87-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-99-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-103-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-107-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-111-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-109-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-105-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-115-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-117-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-119-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-113-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-101-0x0000000001F50000-0x0000000002002000-memory.dmp

Filesize
712KB

Download
memory/964-576-0x0000000004BA0000-0x0000000004BE4000-memory.dmp

Filesize
272KB

Download
memory/964-577-0x0000000004CF5000-0x0000000004D06000-memory.dmp

Filesize
68KB

Download
memory/964-578-0x0000000005360000-0x0000000005374000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads