masslogger | e64ab6d5c019e0cc79bc6b60cd868df87e41b5a7a75085da70de3c1d2fda7e41

Analysis

max time kernel
72s
max time network
127s
platform
windows7_x64
resource
win7-20220414-en
submitted
24-05-2022 23:47

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General

Target

PO NOAB1088-2020.pdf.exe
Size

972KB
MD5

e5b79d5699c82c22ac989a739754340d
SHA1

9bd3a38876deb614620f8a9b71e7264d9fd00380
SHA256

a2d04087127197f6a4ae49039fbc2c2dc750ee0fe2d71965a7c675d556d362d3
SHA512

b5216d9b15fc32f937da9438f4fc621327a5ee1eb0481e798b2ae328f090c1c3f9cf1e066f00342c010c0f39d2e75a137bcda2cd6912664fcb7973495bca0f39

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 11:49:45 PM MassLogger Started: 5/24/2022 11:49:34 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO NOAB1088-2020.pdf.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Downloader ||> Disabled <|| Bot Killer ||> Disabled <|| Window Searcher ||> 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 NOAB1088-2020.pdf.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\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.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 NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.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 NOAB1088-2020.pdf.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 NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO NOAB1088-2020.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO NOAB1088-2020.pdf.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 548 set thread context of 1308	548	PO NOAB1088-2020.pdf.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
1464	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
548	PO NOAB1088-2020.pdf.exe
1308	PO NOAB1088-2020.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	548	PO NOAB1088-2020.pdf.exe
Token: SeDebugPrivilege	1308	PO NOAB1088-2020.pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 1464	548	PO NOAB1088-2020.pdf.exe	27
PID 548 wrote to memory of 1464	548	PO NOAB1088-2020.pdf.exe	27
PID 548 wrote to memory of 1464	548	PO NOAB1088-2020.pdf.exe	27
PID 548 wrote to memory of 1464	548	PO NOAB1088-2020.pdf.exe	27
PID 548 wrote to memory of 1308	548	PO NOAB1088-2020.pdf.exe	29
PID 548 wrote to memory of 1308	548	PO NOAB1088-2020.pdf.exe	29
PID 548 wrote to memory of 1308	548	PO NOAB1088-2020.pdf.exe	29
PID 548 wrote to memory of 1308	548	PO NOAB1088-2020.pdf.exe	29
PID 548 wrote to memory of 1308	548	PO NOAB1088-2020.pdf.exe	29
PID 548 wrote to memory of 1308	548	PO NOAB1088-2020.pdf.exe	29
PID 548 wrote to memory of 1308	548	PO NOAB1088-2020.pdf.exe	29
PID 548 wrote to memory of 1308	548	PO NOAB1088-2020.pdf.exe	29
PID 548 wrote to memory of 1308	548	PO NOAB1088-2020.pdf.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 NOAB1088-2020.pdf.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 NOAB1088-2020.pdf.exe

C:\Users\Admin\AppData\Local\Temp\PO NOAB1088-2020.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PO NOAB1088-2020.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LaIrfdsCZdCIJp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB2EC.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1464
- C:\Users\Admin\AppData\Local\Temp\PO NOAB1088-2020.pdf.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:1308

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\tmpB2EC.tmp

Filesize
1KB

MD5
4da03f6a3e4de32c45014f2d4d9a3f1f

SHA1
74a6d783d1cb522dca8801f4f9c9a546e722de64

SHA256
6088638a3b363608121c8f34e9ca7601899cbc23eb79a312de705cbe1cf4c193

SHA512
23a298ad12f31525f96c1da5399f41fe1ca30ea0fb5b7b19b6ea442d6a3e906a4c2a86a96fc6cfb0305e0e8ac31e06b27737eb90e0d1819c86491f4916a40c90

Download Submit
memory/548-55-0x00000000004C0000-0x00000000004C8000-memory.dmp

Filesize
32KB

Download
memory/548-56-0x0000000000EB0000-0x0000000000F50000-memory.dmp

Filesize
640KB

Download
memory/548-54-0x0000000000FE0000-0x00000000010DA000-memory.dmp

Filesize
1000KB

Download
memory/1308-63-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1308-59-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1308-60-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1308-62-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1308-64-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1308-67-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1308-69-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1308-70-0x0000000000B20000-0x0000000000B64000-memory.dmp

Filesize
272KB

Download
memory/1308-71-0x0000000076181000-0x0000000076183000-memory.dmp

Filesize
8KB

Download
memory/1308-72-0x00000000009D5000-0x00000000009E6000-memory.dmp

Filesize
68KB

Download
memory/1308-73-0x0000000000BB0000-0x0000000000BC4000-memory.dmp

Filesize
80KB

Download