masslogger | e0aa6c2f673df8b8a98d3df001a392914384b5adf043652f11b123a6a2c49237

General

Target

Product_List.exe
Size

818KB
MD5

f5dae3fabd45aa5800a808d8ee39f2c6
SHA1

be546bc5dbcf5bef88c03223935dfd40d893c15f
SHA256

0f589bd3c4bfdf1301a52c6b4b9f9202ab61131bb7230f4e91767b28894005b2
SHA512

f305b8c015cf613017fbee486133d8ab675d2e9d1023c503f0dc8fe6e62f14593bbb25b54b00a321976792c322efe057a8e42612b77e5ef1bd80ad05ca2d8b64

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 v1.3.7.1 ################################################################# ### 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 5:04:43 AM MassLogger Started: 5/21/2022 5:04:40 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Product_List.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1080-137-0x0000000000400000-0x00000000004A8000-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:

Product_List.exeProduct_List.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Product_List.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Product_List.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:

Product_List.exe

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

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

Processes:

Product_List.exe

description pid process target process

PID 3128 set thread context of 1080 3128 Product_List.exe Product_List.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

2920 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

Product_List.exe

pid process

1080 Product_List.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Product_List.exe

pid process

1080 Product_List.exe
1080 Product_List.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Product_List.exe

description pid process

Token: SeDebugPrivilege 1080 Product_List.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Product_List.exe

pid process

1080 Product_List.exe

flow	ioc
38	api.ipify.org

description	pid	process	target process
PID 3128 set thread context of 1080	3128	Product_List.exe	Product_List.exe

pid	process
2920	schtasks.exe

pid	process
1080	Product_List.exe

pid	process
1080	Product_List.exe
1080	Product_List.exe

description	pid	process
Token: SeDebugPrivilege	1080	Product_List.exe

pid	process
1080	Product_List.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Product_List.exe

description	pid	process	target process
PID 3128 wrote to memory of 2920	3128	Product_List.exe	schtasks.exe
PID 3128 wrote to memory of 2920	3128	Product_List.exe	schtasks.exe
PID 3128 wrote to memory of 2920	3128	Product_List.exe	schtasks.exe
PID 3128 wrote to memory of 1080	3128	Product_List.exe	Product_List.exe
PID 3128 wrote to memory of 1080	3128	Product_List.exe	Product_List.exe
PID 3128 wrote to memory of 1080	3128	Product_List.exe	Product_List.exe
PID 3128 wrote to memory of 1080	3128	Product_List.exe	Product_List.exe
PID 3128 wrote to memory of 1080	3128	Product_List.exe	Product_List.exe
PID 3128 wrote to memory of 1080	3128	Product_List.exe	Product_List.exe
PID 3128 wrote to memory of 1080	3128	Product_List.exe	Product_List.exe
PID 3128 wrote to memory of 1080	3128	Product_List.exe	Product_List.exe

outlook_office_path 1 IoCs

Processes:

Product_List.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	Product_List.exe

outlook_win_path 1 IoCs

Processes:

Product_List.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	Product_List.exe

C:\Users\Admin\AppData\Local\Temp\Product_List.exe
"C:\Users\Admin\AppData\Local\Temp\Product_List.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3128
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tjTdXj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFBC5.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2920
- C:\Users\Admin\AppData\Local\Temp\Product_List.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:1080

Network

MITRE ATT&CK Enterprise 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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
507B

MD5
ab4c71d3ff6255edd4e5c1e09540f49e

SHA1
22e06bf4e258741b5df918061871cba998c50cea

SHA256
1690fec628f775dd3c3385b800eed126b37978ef2ffd592b024052724caafb5a

SHA512
8fa7d0045796e6cda7c28e2b9a690ef550619828c1b5d0ebf8e8367aff4bf4d9f63121e5b4f199d30cb8006eb584c6767f4c59150749b8256dab9dd0ebd9f1af

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFBC5.tmp

Filesize
1KB

MD5
ce5789f4b25587f50474253daf92f966

SHA1
a938370c29d63cd1a0c075430626def49f6a9103

SHA256
a79343b1739b182be3d628669255543b454e585d126b65319bdf4bcca8aaf8e0

SHA512
ed216a53d2bd59d36b6b38738a3a4df2161b7fb5800c769d954d1d6b9ccd35d510f8485ee12790cc4f623a52a36e7432b2ce68100dd7e96f064a53258420b59e

Download Submit
memory/1080-136-0x0000000000000000-mapping.dmp

Download
memory/1080-137-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1080-139-0x0000000005940000-0x00000000059A6000-memory.dmp

Filesize
408KB

Download
memory/1080-140-0x00000000070B0000-0x00000000070BA000-memory.dmp

Filesize
40KB

Download
memory/1080-141-0x00000000079D0000-0x0000000007A20000-memory.dmp

Filesize
320KB

Download
memory/2920-134-0x0000000000000000-mapping.dmp

Download
memory/3128-130-0x00000000003D0000-0x00000000004A2000-memory.dmp

Filesize
840KB

Download
memory/3128-131-0x0000000004D50000-0x0000000004DEC000-memory.dmp

Filesize
624KB

Download
memory/3128-132-0x0000000004E90000-0x0000000004F22000-memory.dmp

Filesize
584KB

Download
memory/3128-133-0x0000000006E80000-0x0000000007424000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads