masslogger | 9ac5dab94f488da04edfba6206d21012883f423037adfebf7e475571cee5b84d

Analysis

max time kernel
101s
max time network
164s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 01:21

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General

Target

Scan_DSV 01072020_100284001972_PDF.exe
Size

970KB
MD5

40b83c8155808ea18beef168bea47055
SHA1

0dc6101d19d2c4a922db993be442b01200cba87e
SHA256

a39ea4510d732392bba8682a020321dc7dfa259387244117cc90e072fea20c82
SHA512

850542f39ebfa38158d210e360f6f378753a16045b399a7f40c39fecac99d75b46757803b1e0064e1877b377599def977ff921378da5f4526f050770d579226e

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.5.0 ################################################################# ### 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 4:05:32 AM MassLogger Started: 5/21/2022 4:05:21 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Scan_DSV 01072020_100284001972_PDF.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.ru
Port:
587
Username:
[email protected]
Password:
whayasaynewnew

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/852-61-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-62-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-63-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-64-0x00000000004AB84E-mapping.dmp	family_masslogger
behavioral1/memory/852-66-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-68-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-70-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-72-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-74-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-76-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-78-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-80-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-82-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-84-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-86-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-88-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-90-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-92-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-94-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-96-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-98-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-100-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-102-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-104-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-106-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-108-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-110-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-112-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-114-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-116-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-118-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/852-120-0x0000000000400000-0x00000000004B0000-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:

Scan_DSV 01072020_100284001972_PDF.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	Scan_DSV 01072020_100284001972_PDF.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:

Scan_DSV 01072020_100284001972_PDF.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Scan_DSV 01072020_100284001972_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Scan_DSV 01072020_100284001972_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Scan_DSV 01072020_100284001972_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Scan_DSV 01072020_100284001972_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Scan_DSV 01072020_100284001972_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Scan_DSV 01072020_100284001972_PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.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:

Scan_DSV 01072020_100284001972_PDF.exe

description	pid	process	target process
PID 1496 set thread context of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Scan_DSV 01072020_100284001972_PDF.exe

pid process

852 Scan_DSV 01072020_100284001972_PDF.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Scan_DSV 01072020_100284001972_PDF.exe

description pid process

Token: SeDebugPrivilege 852 Scan_DSV 01072020_100284001972_PDF.exe

pid	process
852	Scan_DSV 01072020_100284001972_PDF.exe

description	pid	process
Token: SeDebugPrivilege	852	Scan_DSV 01072020_100284001972_PDF.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Scan_DSV 01072020_100284001972_PDF.exe

description	pid	process	target process
PID 1496 wrote to memory of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe
PID 1496 wrote to memory of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe
PID 1496 wrote to memory of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe
PID 1496 wrote to memory of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe
PID 1496 wrote to memory of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe
PID 1496 wrote to memory of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe
PID 1496 wrote to memory of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe
PID 1496 wrote to memory of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe
PID 1496 wrote to memory of 852	1496	Scan_DSV 01072020_100284001972_PDF.exe	Scan_DSV 01072020_100284001972_PDF.exe

outlook_office_path 1 IoCs

Processes:

Scan_DSV 01072020_100284001972_PDF.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV 01072020_100284001972_PDF.exe

outlook_win_path 1 IoCs

Processes:

Scan_DSV 01072020_100284001972_PDF.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	Scan_DSV 01072020_100284001972_PDF.exe

C:\Users\Admin\AppData\Local\Temp\Scan_DSV 01072020_100284001972_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Scan_DSV 01072020_100284001972_PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1496
- C:\Users\Admin\AppData\Local\Temp\Scan_DSV 01072020_100284001972_PDF.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:852

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/852-86-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-580-0x00000000006B0000-0x00000000006C4000-memory.dmp

Filesize
80KB

Download
memory/852-579-0x0000000002375000-0x0000000002386000-memory.dmp

Filesize
68KB

Download
memory/852-58-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-90-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-61-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-88-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-63-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-64-0x00000000004AB84E-mapping.dmp

Download
memory/852-66-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-68-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-70-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-72-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-74-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-76-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-78-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-80-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-82-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-84-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-577-0x00000000003A0000-0x00000000003E4000-memory.dmp

Filesize
272KB

Download
memory/852-120-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-59-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-92-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-94-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-96-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-98-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-100-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-102-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-104-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-106-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-108-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-110-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-112-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-114-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-116-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/852-118-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1496-55-0x0000000075711000-0x0000000075713000-memory.dmp

Filesize
8KB

Download
memory/1496-57-0x0000000007F50000-0x0000000008008000-memory.dmp

Filesize
736KB

Download
memory/1496-54-0x0000000000C30000-0x0000000000D28000-memory.dmp

Filesize
992KB

Download
memory/1496-56-0x0000000000590000-0x0000000000598000-memory.dmp

Filesize
32KB

Download