masslogger | e6cea01a5e317f5535b6c16129dab30db14fe935f7c58f08e5c5a11ea4a22081

General

Target

OC_Y590382614.exe
Size

1.2MB
MD5

702a370d537ad9909efe4645ff854a3e
SHA1

cd7dc538b01dea63f5c619ebe4de89ba75b3a245
SHA256

c7202ac90daa5d696736a32eff2c930eba08332c9416ff6a464ce3ea17f414f9
SHA512

b2bca63f30b8d2848b70321201a36ad87de841325374fc8ae350ea9dc9d5894d7bfc333802e24054b9653b3f7ac150a658acffb86c1460cf31f828d2393a814d

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note

<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/20/2022 6:03:44 PM MassLogger Started: 5/20/2022 6:03:33 PM Interval: 1 hour MassLogger Process: C:\Users\Admin\AppData\Roaming\appdata\app.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Window Searcher ||> Disabled <|| Downloader ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> Disabled

Signatures

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

MassLogger Main Payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1388-70-0x0000000001F50000-0x0000000002008000-memory.dmp	family_masslogger
behavioral1/memory/1388-71-0x0000000001F50000-0x0000000002008000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.

Processes:

yara_rule

masslogger_log_file
Executes dropped EXE 3 IoCs

Processes:

app.exeapp.exeapp.exe

pid process

976 app.exe
1388 app.exe
1152 app.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:

app.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation app.exe
Loads dropped DLL 2 IoCs

Processes:

notepad.exe

pid process

1552 notepad.exe
1552 notepad.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

yara_rule
masslogger_log_file

pid	process
976	app.exe
1388	app.exe
1152	app.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	app.exe

pid	process
1552	notepad.exe
1552	notepad.exe

Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

Processes:

app.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	app.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.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

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

Processes:

app.exe

description pid process target process

PID 976 set thread context of 1388 976 app.exe app.exe
NTFS ADS 1 IoCs

Processes:

notepad.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\appdata\app.exe:ZoneIdentifier notepad.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 976 set thread context of 1388	976	app.exe	app.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\appdata\app.exe:ZoneIdentifier	notepad.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

OC_Y590382614.exeapp.exeapp.exeapp.exe

pid	process
1304	OC_Y590382614.exe
976	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1388	app.exe
1388	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1388	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe
1152	app.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

app.exe

pid process

976 app.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

app.exe

description pid process

Token: SeDebugPrivilege 1388 app.exe

pid	process
976	app.exe

description	pid	process
Token: SeDebugPrivilege	1388	app.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

OC_Y590382614.exenotepad.exeapp.exe

description	pid	process	target process
PID 1304 wrote to memory of 1552	1304	OC_Y590382614.exe	notepad.exe
PID 1304 wrote to memory of 1552	1304	OC_Y590382614.exe	notepad.exe
PID 1304 wrote to memory of 1552	1304	OC_Y590382614.exe	notepad.exe
PID 1304 wrote to memory of 1552	1304	OC_Y590382614.exe	notepad.exe
PID 1304 wrote to memory of 1552	1304	OC_Y590382614.exe	notepad.exe
PID 1304 wrote to memory of 1552	1304	OC_Y590382614.exe	notepad.exe
PID 1552 wrote to memory of 976	1552	notepad.exe	app.exe
PID 1552 wrote to memory of 976	1552	notepad.exe	app.exe
PID 1552 wrote to memory of 976	1552	notepad.exe	app.exe
PID 1552 wrote to memory of 976	1552	notepad.exe	app.exe
PID 976 wrote to memory of 1388	976	app.exe	app.exe
PID 976 wrote to memory of 1388	976	app.exe	app.exe
PID 976 wrote to memory of 1388	976	app.exe	app.exe
PID 976 wrote to memory of 1388	976	app.exe	app.exe
PID 976 wrote to memory of 1152	976	app.exe	app.exe
PID 976 wrote to memory of 1152	976	app.exe	app.exe
PID 976 wrote to memory of 1152	976	app.exe	app.exe
PID 976 wrote to memory of 1152	976	app.exe	app.exe

outlook_office_path 1 IoCs

Processes:

app.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe

outlook_win_path 1 IoCs

Processes:

app.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	app.exe

C:\Users\Admin\AppData\Local\Temp\OC_Y590382614.exe
"C:\Users\Admin\AppData\Local\Temp\OC_Y590382614.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\SysWOW64\notepad.exe
"C:\Windows\system32\notepad.exe"
2⤵
- Loads dropped DLL
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:1552

C:\Users\Admin\AppData\Roaming\appdata\app.exe
"C:\Users\Admin\AppData\Roaming\appdata\app.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:976

C:\Users\Admin\AppData\Roaming\appdata\app.exe
"C:\Users\Admin\AppData\Roaming\appdata\app.exe"
4⤵
- Executes dropped EXE
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1388

C:\Users\Admin\AppData\Roaming\appdata\app.exe
"C:\Users\Admin\AppData\Roaming\appdata\app.exe" 2 1388 7093178
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1152

Network

MITRE ATT&CK Enterprise 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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\appdata\app.exe

Filesize
1.2MB

MD5
702a370d537ad9909efe4645ff854a3e

SHA1
cd7dc538b01dea63f5c619ebe4de89ba75b3a245

SHA256
c7202ac90daa5d696736a32eff2c930eba08332c9416ff6a464ce3ea17f414f9

SHA512
b2bca63f30b8d2848b70321201a36ad87de841325374fc8ae350ea9dc9d5894d7bfc333802e24054b9653b3f7ac150a658acffb86c1460cf31f828d2393a814d

Download Submit
C:\Users\Admin\AppData\Roaming\appdata\app.exe

Filesize
1.2MB

MD5
702a370d537ad9909efe4645ff854a3e

SHA1
cd7dc538b01dea63f5c619ebe4de89ba75b3a245

SHA256
c7202ac90daa5d696736a32eff2c930eba08332c9416ff6a464ce3ea17f414f9

SHA512
b2bca63f30b8d2848b70321201a36ad87de841325374fc8ae350ea9dc9d5894d7bfc333802e24054b9653b3f7ac150a658acffb86c1460cf31f828d2393a814d

Download Submit
C:\Users\Admin\AppData\Roaming\appdata\app.exe

Filesize
1.2MB

MD5
702a370d537ad9909efe4645ff854a3e

SHA1
cd7dc538b01dea63f5c619ebe4de89ba75b3a245

SHA256
c7202ac90daa5d696736a32eff2c930eba08332c9416ff6a464ce3ea17f414f9

SHA512
b2bca63f30b8d2848b70321201a36ad87de841325374fc8ae350ea9dc9d5894d7bfc333802e24054b9653b3f7ac150a658acffb86c1460cf31f828d2393a814d

Download Submit
C:\Users\Admin\AppData\Roaming\appdata\app.exe

Filesize
1.2MB

MD5
702a370d537ad9909efe4645ff854a3e

SHA1
cd7dc538b01dea63f5c619ebe4de89ba75b3a245

SHA256
c7202ac90daa5d696736a32eff2c930eba08332c9416ff6a464ce3ea17f414f9

SHA512
b2bca63f30b8d2848b70321201a36ad87de841325374fc8ae350ea9dc9d5894d7bfc333802e24054b9653b3f7ac150a658acffb86c1460cf31f828d2393a814d

Download Submit
\Users\Admin\AppData\Roaming\appdata\app.exe

Filesize
1.2MB

MD5
702a370d537ad9909efe4645ff854a3e

SHA1
cd7dc538b01dea63f5c619ebe4de89ba75b3a245

SHA256
c7202ac90daa5d696736a32eff2c930eba08332c9416ff6a464ce3ea17f414f9

SHA512
b2bca63f30b8d2848b70321201a36ad87de841325374fc8ae350ea9dc9d5894d7bfc333802e24054b9653b3f7ac150a658acffb86c1460cf31f828d2393a814d

Download Submit
\Users\Admin\AppData\Roaming\appdata\app.exe

Filesize
1.2MB

MD5
702a370d537ad9909efe4645ff854a3e

SHA1
cd7dc538b01dea63f5c619ebe4de89ba75b3a245

SHA256
c7202ac90daa5d696736a32eff2c930eba08332c9416ff6a464ce3ea17f414f9

SHA512
b2bca63f30b8d2848b70321201a36ad87de841325374fc8ae350ea9dc9d5894d7bfc333802e24054b9653b3f7ac150a658acffb86c1460cf31f828d2393a814d

Download Submit
memory/976-60-0x0000000000000000-mapping.dmp

Download
memory/976-63-0x0000000000400000-0x000000000053E000-memory.dmp

Filesize
1.2MB

Download
memory/1152-67-0x0000000000000000-mapping.dmp

Download
memory/1152-72-0x0000000000400000-0x000000000053E000-memory.dmp

Filesize
1.2MB

Download
memory/1304-54-0x0000000076451000-0x0000000076453000-memory.dmp

Filesize
8KB

Download
memory/1304-55-0x0000000000400000-0x000000000053E000-memory.dmp

Filesize
1.2MB

Download
memory/1388-70-0x0000000001F50000-0x0000000002008000-memory.dmp

Filesize
736KB

Download
memory/1388-65-0x0000000000580D50-mapping.dmp

Download
memory/1388-71-0x0000000001F50000-0x0000000002008000-memory.dmp

Filesize
736KB

Download
memory/1388-74-0x0000000004B40000-0x0000000004BB8000-memory.dmp

Filesize
480KB

Download
memory/1388-75-0x0000000004C45000-0x0000000004C56000-memory.dmp

Filesize
68KB

Download
memory/1552-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads