masslogger | 7bd992606d363d84ebdb70e19ce5b07091bb85cf6a2e5edcd5976685a271ec1d

Analysis

max time kernel
112s
max time network
124s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 02:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

INVOICE RD-65_xls.exe
Size

836KB
MD5

edd5bb0a52718d2cdb4eee1fbfdb33dc
SHA1

fd4c476494adc0e34ef04183042744251d62e2eb
SHA256

49ced6e317fa96af1310ad10e5b71fea0d84e03b42ff0434f11d312ebb62dbcf
SHA512

14f31d689be224c715df871415561ff7191fdb4a3272612b9d7a307915f24e45644942b65c76a1c0184e6c4ba4cffd0d3721703023a1d867dac27f3474604465

Score

10^/10

masslogger collection ransomware rezer0 spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.2.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States OS: Microsoft Windows 7 Ultimate 64bit CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 6:04:24 AM MassLogger Started: 5/21/2022 6:04:13 AM Interval: 6 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\INVOICE RD-65_xls.exe As Administrator: True

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
evra12345

Signatures

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

MassLogger Main Payload 33 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1228-61-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-60-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-62-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-63-0x00000000004A1E3E-mapping.dmp	family_masslogger
behavioral1/memory/1228-65-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-67-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-69-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-71-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-73-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-75-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-77-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-79-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-81-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-83-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-85-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-87-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-89-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-91-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-93-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-95-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-97-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-99-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-101-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-103-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-105-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-107-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-109-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-111-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-113-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-115-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-117-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-119-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1228-121-0x0000000000400000-0x00000000004A6000-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

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1720-56-0x0000000006790000-0x000000000683E000-memory.dmp	rezer0

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:

INVOICE RD-65_xls.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	INVOICE RD-65_xls.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:

INVOICE RD-65_xls.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE RD-65_xls.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	INVOICE RD-65_xls.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	INVOICE RD-65_xls.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE RD-65_xls.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE RD-65_xls.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE RD-65_xls.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE RD-65_xls.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	INVOICE RD-65_xls.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	INVOICE RD-65_xls.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	INVOICE RD-65_xls.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE RD-65_xls.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE RD-65_xls.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	INVOICE RD-65_xls.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE RD-65_xls.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE RD-65_xls.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:

INVOICE RD-65_xls.exe

description pid process target process

PID 1720 set thread context of 1228 1720 INVOICE RD-65_xls.exe INVOICE RD-65_xls.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

INVOICE RD-65_xls.exe

pid process

1228 INVOICE RD-65_xls.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

INVOICE RD-65_xls.exe

pid process

1228 INVOICE RD-65_xls.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

INVOICE RD-65_xls.exe

description pid process

Token: SeDebugPrivilege 1228 INVOICE RD-65_xls.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

INVOICE RD-65_xls.exe

pid process

1228 INVOICE RD-65_xls.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1720 set thread context of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe

pid	process
1228	INVOICE RD-65_xls.exe

pid	process
1228	INVOICE RD-65_xls.exe

description	pid	process
Token: SeDebugPrivilege	1228	INVOICE RD-65_xls.exe

pid	process
1228	INVOICE RD-65_xls.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

INVOICE RD-65_xls.exe

description	pid	process	target process
PID 1720 wrote to memory of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe
PID 1720 wrote to memory of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe
PID 1720 wrote to memory of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe
PID 1720 wrote to memory of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe
PID 1720 wrote to memory of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe
PID 1720 wrote to memory of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe
PID 1720 wrote to memory of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe
PID 1720 wrote to memory of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe
PID 1720 wrote to memory of 1228	1720	INVOICE RD-65_xls.exe	INVOICE RD-65_xls.exe

outlook_office_path 1 IoCs

Processes:

INVOICE RD-65_xls.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	INVOICE RD-65_xls.exe

outlook_win_path 1 IoCs

Processes:

INVOICE RD-65_xls.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	INVOICE RD-65_xls.exe

C:\Users\Admin\AppData\Local\Temp\INVOICE RD-65_xls.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE RD-65_xls.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\INVOICE RD-65_xls.exe
  "{path}"
  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:1228

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1228-83-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-113-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-569-0x0000000004F60000-0x0000000004FA4000-memory.dmp

Filesize
272KB

Download
memory/1228-57-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-58-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-61-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-60-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-62-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-63-0x00000000004A1E3E-mapping.dmp

Download
memory/1228-65-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-67-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-69-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-71-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-87-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-75-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-77-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-79-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-81-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-121-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-119-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-73-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-89-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-91-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-93-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-95-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-97-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-99-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-101-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-103-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-105-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-107-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-109-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-111-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-85-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-115-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1228-117-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1720-55-0x0000000000370000-0x0000000000386000-memory.dmp

Filesize
88KB

Download
memory/1720-54-0x0000000000BC0000-0x0000000000C98000-memory.dmp

Filesize
864KB

Download
memory/1720-56-0x0000000006790000-0x000000000683E000-memory.dmp

Filesize
696KB

Download