masslogger | 3ecc0863d79785e8b6cb8bf003fcff6c41195e278aaed426ed26144b11d3710c

Analysis

max time kernel
133s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 12:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

PO_75463.exe
Size

821KB
MD5

0e39e0f49e3f74b7fe492f2f9b4e0969
SHA1

bc7fce8afc2a2d379e3e0714191dae859e3771a8
SHA256

b8ac4a45dbd25ba8bb4f71d53bb8615f6d00b9be95b6e976567377957d92c428
SHA512

a9b7539a91aa8593b5a15f2536069591e105ab75484a2bf3900aedbe9c2f6ab6bbed33ab000995f776471f51c86df17a17475c3997a000b854324d42eec4783c

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 v1.3.6.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 10 Pro64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 3:16:38 PM MassLogger Started: 5/21/2022 3:16:35 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO_75463.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:
cruizjamesvhjkl@

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
behavioral4/memory/4580-137-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-140-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-142-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-144-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-146-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-148-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-150-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-152-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-154-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-156-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-158-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-160-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-162-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-164-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-166-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-168-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-170-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-172-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-178-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-176-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-174-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-180-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-182-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-184-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-186-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-188-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-190-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-192-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-194-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-196-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-198-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral4/memory/4580-200-0x0000000000400000-0x00000000004B2000-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 2 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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	PO_75463.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	PO_75463.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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO_75463.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO_75463.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.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
33	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3396 set thread context of 4580	3396	PO_75463.exe	87

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

pid	Process
260	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4580	PO_75463.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4580	PO_75463.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 260	3396	PO_75463.exe	85
PID 3396 wrote to memory of 260	3396	PO_75463.exe	85
PID 3396 wrote to memory of 260	3396	PO_75463.exe	85
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	87
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	87
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	87
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	87
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	87
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	87
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	87
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe

outlook_win_path 1 IoCs

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	PO_75463.exe

C:\Users\Admin\AppData\Local\Temp\PO_75463.exe
"C:\Users\Admin\AppData\Local\Temp\PO_75463.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KSdCVEkTugesZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5A26.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:260
- C:\Users\Admin\AppData\Local\Temp\PO_75463.exe
  "C:\Users\Admin\AppData\Local\Temp\PO_75463.exe"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4580

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

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\PO_75463.exe.log

Filesize
507B

MD5
d1a92622541a19a1840491deb2bb5e6d

SHA1
5b61bb7d8973644f736968ea416ec502a0ae9bce

SHA256
3b453ecc382d28d36f2c3c33634d332f856389fc3d709e40cbe9be8076da7a3c

SHA512
c451f1b9a3dd7c9c2acb1174c0029591f60193b99c9d2712701e182f94fdc89cf93053b402b1ffc26ff5876bec38df7e105c4fe975826acdf6bd215011bcfe41

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5A26.tmp

Filesize
1KB

MD5
e9d5652a43a9367a20a5a3a9a8b4658d

SHA1
f22b502e178549a51ea5c477eeef1e74b99b6330

SHA256
70aa1d76d7688868965bd654732823730af1adc438451c06ac138e4a5957bff2

SHA512
92d34bf7487ab0d8db801b3ee79a3b122a94cab2917dc8c3de2bd84267718350e8161b3a24aa95641e93f35efabbd6fb76a3c7b6a1a64d6b2e50976fb28f5caa

Download Submit
memory/3396-131-0x00000000054F0000-0x0000000005582000-memory.dmp

Filesize
584KB

Download
memory/3396-132-0x0000000005C30000-0x0000000005CCC000-memory.dmp

Filesize
624KB

Download
memory/3396-133-0x0000000006440000-0x00000000069E4000-memory.dmp

Filesize
5.6MB

Download
memory/3396-130-0x00000000009C0000-0x0000000000A94000-memory.dmp

Filesize
848KB

Download
memory/4580-162-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-170-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-140-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-142-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-144-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-146-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-148-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-150-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-152-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-154-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-156-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-158-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-160-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-164-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-166-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-168-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-137-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-172-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-178-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-176-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-174-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-180-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-182-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-184-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-186-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-188-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-190-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-192-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-194-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-196-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-198-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-200-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4580-655-0x0000000005AB0000-0x0000000005B16000-memory.dmp

Filesize
408KB

Download
memory/4580-656-0x0000000007480000-0x000000000748A000-memory.dmp

Filesize
40KB

Download
memory/4580-657-0x00000000074C0000-0x0000000007510000-memory.dmp

Filesize
320KB

Download