masslogger | d091122abc815babad7afcc10be0fb5143f61018e1c1ff8a55a4232ac27a80d4

Analysis

max time kernel
73s
max time network
127s
platform
windows7_x64
resource
win7-20220414-en
submitted
24-05-2022 23:47

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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.

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

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

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.

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1644 set thread context of 1760	1644	PO-NA0U909098899900.exe	29

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

pid	Process
1756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1760	PO-NA0U909098899900.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

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

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 1756	1644	PO-NA0U909098899900.exe	27
PID 1644 wrote to memory of 1756	1644	PO-NA0U909098899900.exe	27
PID 1644 wrote to memory of 1756	1644	PO-NA0U909098899900.exe	27
PID 1644 wrote to memory of 1756	1644	PO-NA0U909098899900.exe	27
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	29
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	29
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	29
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	29
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	29
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	29
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	29
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	29
PID 1644 wrote to memory of 1760	1644	PO-NA0U909098899900.exe	29

outlook_office_path 1 IoCs

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

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 Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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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/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/1760-68-0x0000000000400000-0x000000000049A000-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