masslogger | e3c6a1546ff708f99122b730baeba4692769e0efeb9a3ccc58b215f9ab9fe8e8

Analysis

max time kernel
147s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 01:58

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Report Analysis Logs

General

Target

PI 200000679 Rev 3_pdf.exe
Size

1.1MB
MD5

87084086939792c1a2ccbb561c4fd598
SHA1

3f52ccd6b2ab2618ce47e83bdc858cebea390544
SHA256

a2a4fc12990dcf4a9778f96840b49be84f9563edd2b5209b6dac1ffb2ed8e38d
SHA512

1a8b214bdfa2d9ef2243b3ab874947625b7074f09a3a2c0d8e6ba33697f8723c9ce145756600b1fd2c3119b0deda311f42ab7de64034f8d445a6ac44a472048d

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\F95B724EDE\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 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 5:02:04 AM MassLogger Started: 5/21/2022 5:01:48 AM Interval: 6 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PI 200000679 Rev 3_pdf.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 32 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4388-137-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-140-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-142-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-144-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-146-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-148-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-150-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-152-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-154-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-156-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-158-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-160-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-162-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-164-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-166-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-168-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-170-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-172-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-174-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-176-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-178-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-180-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-182-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-184-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-186-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-188-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-190-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-192-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-194-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-196-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-198-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/4388-200-0x0000000000400000-0x00000000004A6000-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

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:

PI 200000679 Rev 3_pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	PI 200000679 Rev 3_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 18 IoCs

collection

Email Collection

T1114

Processes:

PI 200000679 Rev 3_pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PI 200000679 Rev 3_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PI 200000679 Rev 3_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PI 200000679 Rev 3_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PI 200000679 Rev 3_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PI 200000679 Rev 3_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PI 200000679 Rev 3_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_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

28 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

PI 200000679 Rev 3_pdf.exe

description pid process target process

PID 4224 set thread context of 4388 4224 PI 200000679 Rev 3_pdf.exe PI 200000679 Rev 3_pdf.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

PI 200000679 Rev 3_pdf.exe

pid process

4388 PI 200000679 Rev 3_pdf.exe

flow	ioc
28	api.ipify.org

description	pid	process	target process
PID 4224 set thread context of 4388	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe

pid	process
4388	PI 200000679 Rev 3_pdf.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

PI 200000679 Rev 3_pdf.exePI 200000679 Rev 3_pdf.exe

pid	process
4224	PI 200000679 Rev 3_pdf.exe
4224	PI 200000679 Rev 3_pdf.exe
4224	PI 200000679 Rev 3_pdf.exe
4224	PI 200000679 Rev 3_pdf.exe
4224	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe
4388	PI 200000679 Rev 3_pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PI 200000679 Rev 3_pdf.exePI 200000679 Rev 3_pdf.exe

description pid process

Token: SeDebugPrivilege 4224 PI 200000679 Rev 3_pdf.exe
Token: SeDebugPrivilege 4388 PI 200000679 Rev 3_pdf.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PI 200000679 Rev 3_pdf.exe

pid process

4388 PI 200000679 Rev 3_pdf.exe

description	pid	process
Token: SeDebugPrivilege	4224	PI 200000679 Rev 3_pdf.exe
Token: SeDebugPrivilege	4388	PI 200000679 Rev 3_pdf.exe

pid	process
4388	PI 200000679 Rev 3_pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

PI 200000679 Rev 3_pdf.exe

description	pid	process	target process
PID 4224 wrote to memory of 1512	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 1512	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 1512	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 4388	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 4388	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 4388	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 4388	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 4388	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 4388	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 4388	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe
PID 4224 wrote to memory of 4388	4224	PI 200000679 Rev 3_pdf.exe	PI 200000679 Rev 3_pdf.exe

outlook_office_path 1 IoCs

Processes:

PI 200000679 Rev 3_pdf.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe

outlook_win_path 1 IoCs

Processes:

PI 200000679 Rev 3_pdf.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PI 200000679 Rev 3_pdf.exe

C:\Users\Admin\AppData\Local\Temp\PI 200000679 Rev 3_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PI 200000679 Rev 3_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Users\Admin\AppData\Local\Temp\PI 200000679 Rev 3_pdf.exe
  "{path}"
  2⤵
  PID:1512
- C:\Users\Admin\AppData\Local\Temp\PI 200000679 Rev 3_pdf.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:4388

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PI 200000679 Rev 3_pdf.exe.log

Filesize
1KB

MD5
400f1cc1a0a0ce1cdabda365ab3368ce

SHA1
1ecf683f14271d84f3b6063493dce00ff5f42075

SHA256
c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

SHA512
14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

Download Submit
memory/1512-135-0x0000000000000000-mapping.dmp

Download
memory/4224-131-0x0000000007F30000-0x00000000084D4000-memory.dmp

Filesize
5.6MB

Download
memory/4224-132-0x0000000007B60000-0x0000000007BF2000-memory.dmp

Filesize
584KB

Download
memory/4224-133-0x0000000007B40000-0x0000000007B4A000-memory.dmp

Filesize
40KB

Download
memory/4224-134-0x000000000BB00000-0x000000000BB9C000-memory.dmp

Filesize
624KB

Download
memory/4224-130-0x0000000000720000-0x0000000000838000-memory.dmp

Filesize
1.1MB

Download
memory/4388-162-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-170-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-140-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-142-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-144-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-146-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-148-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-150-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-152-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-154-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-156-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-158-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-160-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-136-0x0000000000000000-mapping.dmp

Download
memory/4388-164-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-166-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-168-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-137-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-172-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-174-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-176-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-178-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-180-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-182-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-184-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-186-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-188-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-190-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-192-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-194-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-196-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-198-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-200-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4388-639-0x00000000063C0000-0x0000000006426000-memory.dmp

Filesize
408KB

Download
memory/4388-640-0x00000000080A0000-0x00000000080F0000-memory.dmp

Filesize
320KB

Download