masslogger | d11166ad387874547d8990d7e397eaca6669748280450834ab1a8695bd951386

General

Target

PO3856221.exe
Size

1.1MB
MD5

0e07446ec588425ca3423dead360978e
SHA1

14b80662c40ee1826d83bbc4e43f96acb5e3c586
SHA256

66be42e48ac5cca62e07acb170e1965756f0556ac5ad9a3070c64c6e74a11fa7
SHA512

466f26f265e807090916da0d7ff1fbdb281a5a60579c73e3d55354ecfa4ae47b6070f28489a82cb378b657bad2dfe23134e54d20173597ad6fc37d888c961381

Score

10^/10

masslogger agilenet collection ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

<|| v2.4.0.0 ||> 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: 5/21/2022 3:49:14 AM MassLogger Started: 5/21/2022 3:49:05 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO3856221.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Signatures

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

MassLogger Main Payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1804-64-0x0000000000210000-0x00000000002C8000-memory.dmp	family_masslogger
behavioral1/memory/1804-63-0x0000000000210000-0x00000000002C8000-memory.dmp	family_masslogger
behavioral1/memory/1804-66-0x00000000004B2CBE-mapping.dmp	family_masslogger
behavioral1/memory/1804-67-0x0000000000210000-0x00000000002C8000-memory.dmp	family_masslogger
behavioral1/memory/1804-68-0x0000000000210000-0x00000000002C8000-memory.dmp	family_masslogger
behavioral1/memory/1804-72-0x0000000000210000-0x00000000002C8000-memory.dmp	family_masslogger
behavioral1/memory/1804-75-0x0000000000210000-0x00000000002C8000-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:

PO3856221.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	PO3856221.exe

Loads dropped DLL 1 IoCs

Processes:

PO3856221.exe

pid process

1520 PO3856221.exe

pid	process
1520	PO3856221.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/1520-56-0x0000000000700000-0x0000000000728000-memory.dmp	agile_net

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:

PO3856221.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO3856221.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PO3856221.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PO3856221.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO3856221.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

PO3856221.exe

description pid process target process

PID 1520 set thread context of 1804 1520 PO3856221.exe PO3856221.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

PO3856221.exe

pid process

1804 PO3856221.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

PO3856221.exePO3856221.exe

pid process

1520 PO3856221.exe
1520 PO3856221.exe
1520 PO3856221.exe
1804 PO3856221.exe
1804 PO3856221.exe
1804 PO3856221.exe
1804 PO3856221.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO3856221.exePO3856221.exe

description pid process

Token: SeDebugPrivilege 1520 PO3856221.exe
Token: SeDebugPrivilege 1804 PO3856221.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PO3856221.exe

pid process

1804 PO3856221.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1520 set thread context of 1804	1520	PO3856221.exe	PO3856221.exe

pid	process
1804	PO3856221.exe

pid	process
1520	PO3856221.exe
1520	PO3856221.exe
1520	PO3856221.exe
1804	PO3856221.exe
1804	PO3856221.exe
1804	PO3856221.exe
1804	PO3856221.exe

description	pid	process
Token: SeDebugPrivilege	1520	PO3856221.exe
Token: SeDebugPrivilege	1804	PO3856221.exe

pid	process
1804	PO3856221.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

PO3856221.exe

description	pid	process	target process
PID 1520 wrote to memory of 1804	1520	PO3856221.exe	PO3856221.exe
PID 1520 wrote to memory of 1804	1520	PO3856221.exe	PO3856221.exe
PID 1520 wrote to memory of 1804	1520	PO3856221.exe	PO3856221.exe
PID 1520 wrote to memory of 1804	1520	PO3856221.exe	PO3856221.exe
PID 1520 wrote to memory of 1804	1520	PO3856221.exe	PO3856221.exe
PID 1520 wrote to memory of 1804	1520	PO3856221.exe	PO3856221.exe
PID 1520 wrote to memory of 1804	1520	PO3856221.exe	PO3856221.exe
PID 1520 wrote to memory of 1804	1520	PO3856221.exe	PO3856221.exe
PID 1520 wrote to memory of 1804	1520	PO3856221.exe	PO3856221.exe

outlook_office_path 1 IoCs

Processes:

PO3856221.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO3856221.exe

outlook_win_path 1 IoCs

Processes:

PO3856221.exe

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	PO3856221.exe

C:\Users\Admin\AppData\Local\Temp\PO3856221.exe
"C:\Users\Admin\AppData\Local\Temp\PO3856221.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1520

C:\Users\Admin\AppData\Local\Temp\PO3856221.exe
"C:\Users\Admin\AppData\Local\Temp\PO3856221.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:1804

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\c08e67e7-d17e-42f4-84a8-059771d01a58\AgileDotNetRT.dll
Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
memory/1520-54-0x0000000000040000-0x0000000000166000-memory.dmp

Filesize
1.1MB

Download
memory/1520-55-0x0000000075841000-0x0000000075843000-memory.dmp

Filesize
8KB

Download
memory/1520-56-0x0000000000700000-0x0000000000728000-memory.dmp

Filesize
160KB

Download
memory/1520-58-0x0000000074DF0000-0x0000000074E70000-memory.dmp

Filesize
512KB

Download
memory/1520-59-0x0000000001ED0000-0x0000000001EDA000-memory.dmp

Filesize
40KB

Download
memory/1804-64-0x0000000000210000-0x00000000002C8000-memory.dmp

Filesize
736KB

Download
memory/1804-61-0x0000000000210000-0x00000000002C8000-memory.dmp

Filesize
736KB

Download
memory/1804-60-0x0000000000210000-0x00000000002C8000-memory.dmp

Filesize
736KB

Download
memory/1804-63-0x0000000000210000-0x00000000002C8000-memory.dmp

Filesize
736KB

Download
memory/1804-66-0x00000000004B2CBE-mapping.dmp

Download
memory/1804-67-0x0000000000210000-0x00000000002C8000-memory.dmp

Filesize
736KB

Download
memory/1804-68-0x0000000000210000-0x00000000002C8000-memory.dmp

Filesize
736KB

Download
memory/1804-72-0x0000000000210000-0x00000000002C8000-memory.dmp

Filesize
736KB

Download
memory/1804-75-0x0000000000210000-0x00000000002C8000-memory.dmp

Filesize
736KB

Download
memory/1804-76-0x00000000008E0000-0x0000000000958000-memory.dmp

Filesize
480KB

Download
memory/1804-78-0x0000000004F65000-0x0000000004F76000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads