masslogger | 90b541c5d2b2738109fe53bef96ac20d79f45997467fa7417c74bef812850b8c

General

Target

Veitstar Inquiry.exe
Size

2.5MB
MD5

5c8c2fb2fbd3c20a62a107e34226e90f
SHA1

c85262bd4d832a4ef68ef1940cee8501d1cab90e
SHA256

44a169140fbd4a243478d8504cb62dd7a5d2225df55d058c4aa71dd0c0d7c480
SHA512

9912e0231369acce4cf7b63e1f2d06c76a0161bc85e13789ab02129774de8dcf6c57f30a694d8180491e7eb42112cd22c75d79587882f836255919fcde11f246

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\2EF8342664\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.3.0 ################################################################# ### 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 8:56:44 PM MassLogger Started: 5/21/2022 8:56:41 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe As Administrator: True

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
m4cfund@yandex.com
Password:
Dmacdavid

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger
MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.

Processes:

yara_rule

masslogger_log_file
Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

4712 InstallUtil.exe

yara_rule
masslogger_log_file

pid	process
4712	InstallUtil.exe

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:

InstallUtil.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	InstallUtil.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:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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

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

Processes:

Veitstar Inquiry.exe

description pid process target process

PID 1884 set thread context of 4712 1884 Veitstar Inquiry.exe InstallUtil.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

InstallUtil.exe

pid process

4712 InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Veitstar Inquiry.exeInstallUtil.exe

pid process

1884 Veitstar Inquiry.exe
1884 Veitstar Inquiry.exe
1884 Veitstar Inquiry.exe
4712 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Veitstar Inquiry.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1884 Veitstar Inquiry.exe
Token: SeDebugPrivilege 4712 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

4712 InstallUtil.exe

flow	ioc
25	api.ipify.org

description	pid	process	target process
PID 1884 set thread context of 4712	1884	Veitstar Inquiry.exe	InstallUtil.exe

pid	process
4712	InstallUtil.exe

pid	process
1884	Veitstar Inquiry.exe
1884	Veitstar Inquiry.exe
1884	Veitstar Inquiry.exe
4712	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1884	Veitstar Inquiry.exe
Token: SeDebugPrivilege	4712	InstallUtil.exe

pid	process
4712	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Veitstar Inquiry.exe

description	pid	process	target process
PID 1884 wrote to memory of 4712	1884	Veitstar Inquiry.exe	InstallUtil.exe
PID 1884 wrote to memory of 4712	1884	Veitstar Inquiry.exe	InstallUtil.exe
PID 1884 wrote to memory of 4712	1884	Veitstar Inquiry.exe	InstallUtil.exe
PID 1884 wrote to memory of 4712	1884	Veitstar Inquiry.exe	InstallUtil.exe
PID 1884 wrote to memory of 4712	1884	Veitstar Inquiry.exe	InstallUtil.exe
PID 1884 wrote to memory of 4712	1884	Veitstar Inquiry.exe	InstallUtil.exe
PID 1884 wrote to memory of 4712	1884	Veitstar Inquiry.exe	InstallUtil.exe
PID 1884 wrote to memory of 4712	1884	Veitstar Inquiry.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Veitstar Inquiry.exe
"C:\Users\Admin\AppData\Local\Temp\Veitstar Inquiry.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1884

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
2⤵
- Executes dropped EXE
- 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:4712

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

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\Temp\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
memory/1884-131-0x00000000052E0000-0x0000000005884000-memory.dmp

Filesize
5.6MB

Download
memory/1884-132-0x0000000004DD0000-0x0000000004E62000-memory.dmp

Filesize
584KB

Download
memory/1884-133-0x0000000005990000-0x00000000059D4000-memory.dmp

Filesize
272KB

Download
memory/1884-134-0x0000000006BD0000-0x0000000006BF2000-memory.dmp

Filesize
136KB

Download
memory/1884-130-0x00000000002D0000-0x000000000055A000-memory.dmp

Filesize
2.5MB

Download
memory/4712-166-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-174-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-140-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-142-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-144-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-146-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-148-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-150-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-152-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-154-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-156-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-158-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-160-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-162-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-164-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-135-0x0000000000000000-mapping.dmp

Download
memory/4712-168-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-170-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-172-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-136-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-176-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-178-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-180-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-182-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-184-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-186-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-188-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-190-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-192-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-194-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-196-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-198-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-200-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/4712-643-0x0000000006110000-0x0000000006176000-memory.dmp

Filesize
408KB

Download
memory/4712-644-0x00000000064D0000-0x00000000064DA000-memory.dmp

Filesize
40KB

Download
memory/4712-645-0x0000000007E50000-0x0000000007EA0000-memory.dmp

Filesize
320KB

Download
memory/4712-646-0x0000000007F40000-0x0000000007FDC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads