masslogger | 3ecc0863d79785e8b6cb8bf003fcff6c41195e278aaed426ed26144b11d3710c

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:
cruizjames@yandex.ru
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

Processes:

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.

Processes:

yara_rule

masslogger_log_file

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

Processes:

PO_75463.exePO_75463.exe

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

Processes:

PO_75463.exe

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.

Processes:

flow ioc

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

Processes:

PO_75463.exe

description pid process target process

PID 3396 set thread context of 4580 3396 PO_75463.exe PO_75463.exe
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

Processes:

schtasks.exe

pid process

260 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

PO_75463.exe

pid process

4580 PO_75463.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PO_75463.exe

description pid process

Token: SeDebugPrivilege 4580 PO_75463.exe

flow	ioc
33	api.ipify.org

description	pid	process	target process
PID 3396 set thread context of 4580	3396	PO_75463.exe	PO_75463.exe

pid	process
260	schtasks.exe

pid	process
4580	PO_75463.exe

description	pid	process
Token: SeDebugPrivilege	4580	PO_75463.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

PO_75463.exe

description	pid	process	target process
PID 3396 wrote to memory of 260	3396	PO_75463.exe	schtasks.exe
PID 3396 wrote to memory of 260	3396	PO_75463.exe	schtasks.exe
PID 3396 wrote to memory of 260	3396	PO_75463.exe	schtasks.exe
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	PO_75463.exe
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	PO_75463.exe
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	PO_75463.exe
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	PO_75463.exe
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	PO_75463.exe
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	PO_75463.exe
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	PO_75463.exe
PID 3396 wrote to memory of 4580	3396	PO_75463.exe	PO_75463.exe

outlook_office_path 1 IoCs

Processes:

PO_75463.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	PO_75463.exe

outlook_win_path 1 IoCs

Processes:

PO_75463.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	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 Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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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/260-134-0x0000000000000000-mapping.dmp

Download
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/4580-136-0x0000000000000000-mapping.dmp

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

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads