masslogger | d689a361064790952175d8e479af5bccfe980c8a6875c4ed1114eb97366f9644

General

Target

Revised Invoice Climax .exe
Size

850KB
MD5

a8ed22767227400f4fb7bf2a19b2baea
SHA1

1621e5246a62157f1ce424c0009e5e4c8bf367d2
SHA256

9438029220db8ca0eceabb6d576917ebce7b30db2eb9ca8e52a85b089c040a9b
SHA512

2e0e5aa6a01f2e04d0ea1938ed5313c4c400a24944f006e8aaa5f90b41cc80499de0aaa1329ca1eaddbc11f413fc0d3e0da8c52a99736c017ae48ba86dad1fac

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

<|| v2.1.0.0 ||> 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 1:53:50 AM MassLogger Started: 5/21/2022 1:53:32 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Revised Invoice Climax .exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Downloader ||> Disabled <|| Bot Killer ||> Disabled <|| Window Searcher ||> 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 ||> Disabled

Extracted

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
71c7eb1f8baa88

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/1764-64-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1764-65-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1764-66-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1764-67-0x00000000004945DE-mapping.dmp	family_masslogger
behavioral1/memory/1764-69-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1764-71-0x0000000000400000-0x000000000049A000-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:

Revised Invoice Climax .exe

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

Revised Invoice Climax .exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Revised Invoice Climax .exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .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:

Revised Invoice Climax .exe

description pid process target process

PID 1468 set thread context of 1764 1468 Revised Invoice Climax .exe Revised Invoice Climax .exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1724 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Revised Invoice Climax .exeRevised Invoice Climax .exe

pid process

1468 Revised Invoice Climax .exe
1468 Revised Invoice Climax .exe
1764 Revised Invoice Climax .exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Revised Invoice Climax .exeRevised Invoice Climax .exe

description pid process

Token: SeDebugPrivilege 1468 Revised Invoice Climax .exe
Token: SeDebugPrivilege 1764 Revised Invoice Climax .exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1468 set thread context of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe

pid	process
1724	schtasks.exe

pid	process
1468	Revised Invoice Climax .exe
1468	Revised Invoice Climax .exe
1764	Revised Invoice Climax .exe

description	pid	process
Token: SeDebugPrivilege	1468	Revised Invoice Climax .exe
Token: SeDebugPrivilege	1764	Revised Invoice Climax .exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Revised Invoice Climax .exe

description	pid	process	target process
PID 1468 wrote to memory of 1724	1468	Revised Invoice Climax .exe	schtasks.exe
PID 1468 wrote to memory of 1724	1468	Revised Invoice Climax .exe	schtasks.exe
PID 1468 wrote to memory of 1724	1468	Revised Invoice Climax .exe	schtasks.exe
PID 1468 wrote to memory of 1724	1468	Revised Invoice Climax .exe	schtasks.exe
PID 1468 wrote to memory of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe
PID 1468 wrote to memory of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe
PID 1468 wrote to memory of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe
PID 1468 wrote to memory of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe
PID 1468 wrote to memory of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe
PID 1468 wrote to memory of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe
PID 1468 wrote to memory of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe
PID 1468 wrote to memory of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe
PID 1468 wrote to memory of 1764	1468	Revised Invoice Climax .exe	Revised Invoice Climax .exe

outlook_office_path 1 IoCs

Processes:

Revised Invoice Climax .exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Revised Invoice Climax .exe

outlook_win_path 1 IoCs

Processes:

Revised Invoice Climax .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	Revised Invoice Climax .exe

C:\Users\Admin\AppData\Local\Temp\Revised Invoice Climax .exe
"C:\Users\Admin\AppData\Local\Temp\Revised Invoice Climax .exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1468

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tCflRSuleTAda" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE985.tmp"
2⤵
- Creates scheduled task(s)
PID:1724

C:\Users\Admin\AppData\Local\Temp\Revised Invoice Climax .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:1764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE985.tmp

Filesize
1KB

MD5
c8405344407977c43ae178eb964f4025

SHA1
af42d98d7b661453b1e03c02585ea3dcc4d5629d

SHA256
91e96d6b54b9259fd11a808532d1f3e8d54b444dc46c0f6554b1bb1475615ed8

SHA512
3c8e9b0fe4bd3c8974b51aa6b28cdf12b9708ef3f49fca07c48591b2dd8b92fef6b6b6bac1f5345225cdbf587c19b58bbae3789e3c2abb446081e7d1c57e3d7c

Download Submit
memory/1468-54-0x0000000000910000-0x00000000009EA000-memory.dmp

Filesize
872KB

Download
memory/1468-55-0x0000000076C81000-0x0000000076C83000-memory.dmp

Filesize
8KB

Download
memory/1468-56-0x00000000005C0000-0x00000000005D0000-memory.dmp

Filesize
64KB

Download
memory/1468-57-0x00000000054E0000-0x000000000557E000-memory.dmp

Filesize
632KB

Download
memory/1468-58-0x0000000005F00000-0x0000000005F98000-memory.dmp

Filesize
608KB

Download
memory/1724-59-0x0000000000000000-mapping.dmp

Download
memory/1764-62-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1764-61-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1764-64-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1764-65-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1764-66-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1764-67-0x00000000004945DE-mapping.dmp

Download
memory/1764-69-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1764-71-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1764-72-0x0000000000340000-0x0000000000384000-memory.dmp

Filesize
272KB

Download
memory/1764-74-0x0000000004345000-0x0000000004356000-memory.dmp

Filesize
68KB

Download
memory/1764-75-0x00000000008E0000-0x00000000008F4000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads