masslogger | d091122abc815babad7afcc10be0fb5143f61018e1c1ff8a55a4232ac27a80d4

General

Target

PO-NA0U909098899900.exe
Size

1.1MB
MD5

e66cf867f482d2e6b3ae457fe86bf21d
SHA1

b6f9f39d6ac99a4a88e1b2ba9a9de95bb917ec7a
SHA256

5467d4952a438b7025b7e6661bbc5755b94db5553e4534d2924dd60a9051efba
SHA512

60d110569632970661e226c871e0df2f67853238a580b2f74d5954b0650103ccceb568326ef277686870f970265a7a0f79837ab8b0ba83c68e50f1f9fc11b20f

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\79FE0CC911\Log.txt

Family

masslogger

Ransom Note

<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.51 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: 5/24/2022 11:49:46 PM MassLogger Started: 5/24/2022 11:49:35 PM Interval: 96 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO-NA0U909098899900.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> 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 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 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

PO-NA0U909098899900.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	PO-NA0U909098899900.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 35 IoCs

collection

Email Collection

T1114

Processes:

PO-NA0U909098899900.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PO-NA0U909098899900.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO-NA0U909098899900.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:

PO-NA0U909098899900.exe

description pid process target process

PID 1644 set thread context of 1760 1644 PO-NA0U909098899900.exe PO-NA0U909098899900.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

1756 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

PO-NA0U909098899900.exe

pid process

1760 PO-NA0U909098899900.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PO-NA0U909098899900.exe

description pid process

Token: SeDebugPrivilege 1760 PO-NA0U909098899900.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1644 set thread context of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe

pid	process
1756	schtasks.exe

pid	process
1760	PO-NA0U909098899900.exe

description	pid	process
Token: SeDebugPrivilege	1760	PO-NA0U909098899900.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PO-NA0U909098899900.exe

description	pid	process	target process
PID 1644 wrote to memory of 1756	1644	PO-NA0U909098899900.exe	schtasks.exe
PID 1644 wrote to memory of 1756	1644	PO-NA0U909098899900.exe	schtasks.exe
PID 1644 wrote to memory of 1756	1644	PO-NA0U909098899900.exe	schtasks.exe
PID 1644 wrote to memory of 1756	1644	PO-NA0U909098899900.exe	schtasks.exe
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	PO-NA0U909098899900.exe

outlook_office_path 1 IoCs

Processes:

PO-NA0U909098899900.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe

outlook_win_path 1 IoCs

Processes:

PO-NA0U909098899900.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-NA0U909098899900.exe

C:\Users\Admin\AppData\Local\Temp\PO-NA0U909098899900.exe
"C:\Users\Admin\AppData\Local\Temp\PO-NA0U909098899900.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1644

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sTnSVVcfDErzA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBE41.tmp"
2⤵
- Creates scheduled task(s)
PID:1756

C:\Users\Admin\AppData\Local\Temp\PO-NA0U909098899900.exe
"{path}"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1760

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\Temp\tmpBE41.tmp
Filesize
1KB

MD5
e7be30fcf0b3e4912f83864580c559a7

SHA1
fc8883ffca0662ce7edd07361cedce2654f87238

SHA256
547991328075cb5203ac533aea90d6ce73fdad7d6e3addb6432b9518fb2e4210

SHA512
d22725c90713125a5365f36478b42ceca1da00edf7e7d3d10b55f582c04a30130a518cc82953db9edba1f97ee26df18f33fa20ca978f01dee6d7590958b9b70a

Download Submit
memory/1644-54-0x0000000000950000-0x0000000000A6C000-memory.dmp

Filesize
1.1MB

Download
memory/1644-55-0x0000000000330000-0x0000000000338000-memory.dmp

Filesize
32KB

Download
memory/1644-56-0x0000000005280000-0x0000000005320000-memory.dmp

Filesize
640KB

Download
memory/1644-57-0x0000000076781000-0x0000000076783000-memory.dmp

Filesize
8KB

Download
memory/1756-58-0x0000000000000000-mapping.dmp

Download
memory/1760-63-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1760-61-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1760-60-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1760-64-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1760-65-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1760-66-0x000000000049429E-mapping.dmp

Download
memory/1760-68-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1760-70-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1760-71-0x00000000006C0000-0x0000000000704000-memory.dmp

Filesize
272KB

Download
memory/1760-73-0x00000000002A5000-0x00000000002B6000-memory.dmp

Filesize
68KB

Download
memory/1760-74-0x00000000008D0000-0x00000000008E4000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads