masslogger | b8c1012ee15a746b67962168115e165e638c337d2fa305741b57752218827d7e

General

Target

RFQ #0605176.exe
Size

1.4MB
MD5

c711fc1c2e67bfa34d1117e526365033
SHA1

842f0492db652ad8da1553b98240a5dd0a439de2
SHA256

3027dc21e325fddbc9e6cd21b0491f3270190f219776de4971e510c4490d3c25
SHA512

95e1628a6249fe7a0059f699c4e61a6f132c67c76c669056ecb37d36afc11e88d3f1cddcc5c7d72763c3f32f137c4b22c21231197c9078229265a04ed6d9db8b

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\F293CD6622\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 1:35:03 PM MassLogger Started: 5/21/2022 1:34:52 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

4720 InstallUtil.exe

yara_rule
masslogger_log_file

pid	process
4720	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-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	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

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

Processes:

RFQ #0605176.exe

description pid process target process

PID 5016 set thread context of 4720 5016 RFQ #0605176.exe InstallUtil.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

InstallUtil.exe

pid process

4720 InstallUtil.exe

flow	ioc
28	api.ipify.org

description	pid	process	target process
PID 5016 set thread context of 4720	5016	RFQ #0605176.exe	InstallUtil.exe

pid	process
4720	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

RFQ #0605176.exeInstallUtil.exe

pid	process
5016	RFQ #0605176.exe
5016	RFQ #0605176.exe
5016	RFQ #0605176.exe
5016	RFQ #0605176.exe
5016	RFQ #0605176.exe
5016	RFQ #0605176.exe
4720	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ #0605176.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 5016 RFQ #0605176.exe
Token: SeDebugPrivilege 4720 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

4720 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	5016	RFQ #0605176.exe
Token: SeDebugPrivilege	4720	InstallUtil.exe

pid	process
4720	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

RFQ #0605176.exe

description	pid	process	target process
PID 5016 wrote to memory of 4720	5016	RFQ #0605176.exe	InstallUtil.exe
PID 5016 wrote to memory of 4720	5016	RFQ #0605176.exe	InstallUtil.exe
PID 5016 wrote to memory of 4720	5016	RFQ #0605176.exe	InstallUtil.exe
PID 5016 wrote to memory of 4720	5016	RFQ #0605176.exe	InstallUtil.exe
PID 5016 wrote to memory of 4720	5016	RFQ #0605176.exe	InstallUtil.exe
PID 5016 wrote to memory of 4720	5016	RFQ #0605176.exe	InstallUtil.exe
PID 5016 wrote to memory of 4720	5016	RFQ #0605176.exe	InstallUtil.exe
PID 5016 wrote to memory of 4720	5016	RFQ #0605176.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\RFQ #0605176.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ #0605176.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5016

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:4720

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/4720-166-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-140-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-170-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-135-0x0000000000000000-mapping.dmp

Download
memory/4720-136-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-646-0x00000000080D0000-0x000000000816C000-memory.dmp

Filesize
624KB

Download
memory/4720-645-0x0000000007FE0000-0x0000000008030000-memory.dmp

Filesize
320KB

Download
memory/4720-168-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-142-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-144-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-146-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-148-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-644-0x0000000006710000-0x000000000671A000-memory.dmp

Filesize
40KB

Download
memory/4720-152-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-154-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-156-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-158-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-160-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-162-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-164-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-150-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-643-0x0000000005BF0000-0x0000000005C56000-memory.dmp

Filesize
408KB

Download
memory/4720-200-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-172-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-174-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-176-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-178-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-180-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-182-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-184-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-186-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-188-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-190-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-192-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-194-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-196-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4720-198-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/5016-134-0x0000000005830000-0x00000000058C2000-memory.dmp

Filesize
584KB

Download
memory/5016-132-0x0000000005740000-0x0000000005784000-memory.dmp

Filesize
272KB

Download
memory/5016-130-0x0000000000A10000-0x0000000000B44000-memory.dmp

Filesize
1.2MB

Download
memory/5016-131-0x0000000005CF0000-0x0000000006294000-memory.dmp

Filesize
5.6MB

Download
memory/5016-133-0x00000000053C0000-0x00000000053E2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads