masslogger | 71125e371affeea3c44aaf8aabb2b06e8e5f9af1b7fcd60686444b9d64b3b774

Analysis

max time kernel
106s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 12:40

Sharing

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Report Analysis Logs

General

Target

Scan_DSV_03072020_038465318631_PDF.exe
Size

820KB
MD5

7e3ce66bf8cca74b5a5339d9f2b8aeeb
SHA1

5a57f3abe3e6105207ece6f3fd1e830e2c341868
SHA256

c4349d30167ec1dfd9c70454c3f91a5ac21d52d433c093391462bc3f995e7781
SHA512

5f4bca15864f1d1830e86bd0af9659921ca00178aacc19c9f7dd344a16b5bc77bd067c6c8e3fb3fb4615592ea52de6b981054af24729fe76f79e7db5c4ac23c8

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\19E979543A\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.5.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 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 3:16:29 PM MassLogger Started: 5/21/2022 3:16:25 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Scan_DSV_03072020_038465318631_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

resource	yara_rule
behavioral2/memory/4504-136-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-141-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-139-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-143-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-145-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-147-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-149-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-151-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-153-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-155-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-157-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-159-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-161-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-163-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-165-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-167-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-169-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-171-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-173-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-175-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-177-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-179-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-181-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-183-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-185-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-187-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-189-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-191-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-193-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-195-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-197-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/4504-199-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	Scan_DSV_03072020_038465318631_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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Scan_DSV_03072020_038465318631_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Scan_DSV_03072020_038465318631_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Scan_DSV_03072020_038465318631_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Scan_DSV_03072020_038465318631_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Scan_DSV_03072020_038465318631_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Scan_DSV_03072020_038465318631_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.

flow	ioc
40	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1392 set thread context of 4504	1392	Scan_DSV_03072020_038465318631_PDF.exe	89

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4504	Scan_DSV_03072020_038465318631_PDF.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4504	Scan_DSV_03072020_038465318631_PDF.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 4504	1392	Scan_DSV_03072020_038465318631_PDF.exe	89
PID 1392 wrote to memory of 4504	1392	Scan_DSV_03072020_038465318631_PDF.exe	89
PID 1392 wrote to memory of 4504	1392	Scan_DSV_03072020_038465318631_PDF.exe	89
PID 1392 wrote to memory of 4504	1392	Scan_DSV_03072020_038465318631_PDF.exe	89
PID 1392 wrote to memory of 4504	1392	Scan_DSV_03072020_038465318631_PDF.exe	89
PID 1392 wrote to memory of 4504	1392	Scan_DSV_03072020_038465318631_PDF.exe	89
PID 1392 wrote to memory of 4504	1392	Scan_DSV_03072020_038465318631_PDF.exe	89
PID 1392 wrote to memory of 4504	1392	Scan_DSV_03072020_038465318631_PDF.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_DSV_03072020_038465318631_PDF.exe

C:\Users\Admin\AppData\Local\Temp\Scan_DSV_03072020_038465318631_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Scan_DSV_03072020_038465318631_PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1392
- C:\Users\Admin\AppData\Local\Temp\Scan_DSV_03072020_038465318631_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:4504

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Scan_DSV_03072020_038465318631_PDF.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1392-131-0x0000000005770000-0x0000000005D14000-memory.dmp

Filesize
5.6MB

Download
memory/1392-132-0x00000000050F0000-0x0000000005182000-memory.dmp

Filesize
584KB

Download
memory/1392-133-0x00000000051A0000-0x00000000051AA000-memory.dmp

Filesize
40KB

Download
memory/1392-134-0x0000000007CA0000-0x0000000007D3C000-memory.dmp

Filesize
624KB

Download
memory/1392-130-0x0000000000680000-0x0000000000754000-memory.dmp

Filesize
848KB

Download
memory/4504-163-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-169-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-141-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-139-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-143-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-145-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-147-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-149-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-151-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-153-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-155-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-157-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-159-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-161-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-165-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-167-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-136-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-171-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-173-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-175-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-177-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-179-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-181-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-183-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-185-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-187-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-189-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-191-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-193-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-195-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-197-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-199-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4504-646-0x00000000054B0000-0x0000000005516000-memory.dmp

Filesize
408KB

Download
memory/4504-647-0x0000000006D50000-0x0000000006DA0000-memory.dmp

Filesize
320KB

Download