masslogger | c0c944c8a43bdd1f51bda0c74724c4958a396f13c02fda923c38ed292fb0c7e6

General

Target

parcel_info-pdf.exe
Size

773KB
MD5

72896ea3476d80b1be18767b45192c7d
SHA1

39025c6543d60b9f465b579fea3a95184260c547
SHA256

553ee875b3fc39e67daff6b7ace6590da149818f31bc7f84bc115858d10ab4f9
SHA512

978f66541a72282c61b281e2b24e066186c672a8b3399941214cde71ceb85e5fd695f3ffbca436ad20a2804a9dd8eeb4843b8f36f5a8642f7a2a1e134a88a128

Score

10^/10

masslogger collection evasion ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

<|| v2.1.0.0 ||> 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: 5/21/2022 7:25:00 AM MassLogger Started: 5/21/2022 7:24:46 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> Disabled <|| Window Searcher ||> 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 ||> NA

Signatures

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

MassLogger Main Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/692-63-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/692-64-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/692-65-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/692-66-0x00000000004944DE-mapping.dmp	family_masslogger
behavioral1/memory/692-68-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/692-70-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger

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

Processes:

yara_rule

masslogger_log_file
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

yara_rule
masslogger_log_file

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

parcel_info-pdf.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	parcel_info-pdf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	parcel_info-pdf.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:

parcel_info-pdf.exe

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

Processes:

parcel_info-pdf.exe

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

Processes:

flow ioc

4 api.ipify.org

flow	ioc
4	api.ipify.org

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

parcel_info-pdf.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	parcel_info-pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	parcel_info-pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

parcel_info-pdf.exe

description pid process target process

PID 1756 set thread context of 692 1756 parcel_info-pdf.exe parcel_info-pdf.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

592 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

parcel_info-pdf.exe

pid process

692 parcel_info-pdf.exe

description	pid	process	target process
PID 1756 set thread context of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe

pid	process
592	schtasks.exe

pid	process
692	parcel_info-pdf.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

parcel_info-pdf.exeparcel_info-pdf.exe

pid	process
1756	parcel_info-pdf.exe
1756	parcel_info-pdf.exe
1756	parcel_info-pdf.exe
1756	parcel_info-pdf.exe
1756	parcel_info-pdf.exe
1756	parcel_info-pdf.exe
1756	parcel_info-pdf.exe
1756	parcel_info-pdf.exe
692	parcel_info-pdf.exe
692	parcel_info-pdf.exe
1756	parcel_info-pdf.exe
1756	parcel_info-pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

parcel_info-pdf.exeparcel_info-pdf.exe

description pid process

Token: SeDebugPrivilege 1756 parcel_info-pdf.exe
Token: SeDebugPrivilege 692 parcel_info-pdf.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

parcel_info-pdf.exe

pid process

692 parcel_info-pdf.exe

description	pid	process
Token: SeDebugPrivilege	1756	parcel_info-pdf.exe
Token: SeDebugPrivilege	692	parcel_info-pdf.exe

pid	process
692	parcel_info-pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

parcel_info-pdf.exe

description	pid	process	target process
PID 1756 wrote to memory of 592	1756	parcel_info-pdf.exe	schtasks.exe
PID 1756 wrote to memory of 592	1756	parcel_info-pdf.exe	schtasks.exe
PID 1756 wrote to memory of 592	1756	parcel_info-pdf.exe	schtasks.exe
PID 1756 wrote to memory of 592	1756	parcel_info-pdf.exe	schtasks.exe
PID 1756 wrote to memory of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe
PID 1756 wrote to memory of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe
PID 1756 wrote to memory of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe
PID 1756 wrote to memory of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe
PID 1756 wrote to memory of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe
PID 1756 wrote to memory of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe
PID 1756 wrote to memory of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe
PID 1756 wrote to memory of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe
PID 1756 wrote to memory of 692	1756	parcel_info-pdf.exe	parcel_info-pdf.exe

outlook_office_path 1 IoCs

Processes:

parcel_info-pdf.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	parcel_info-pdf.exe

outlook_win_path 1 IoCs

Processes:

parcel_info-pdf.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	parcel_info-pdf.exe

C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EHrUflJwi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA1BC.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:592
- C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe"
  2⤵
  - 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:692

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

1

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA1BC.tmp

Filesize
1KB

MD5
16d6b049000c2c79f28bce30467a8275

SHA1
398b589c62f68e2370bf55d41fd66daa9f4b087b

SHA256
c42efbebd9da478671d52eea5683a0d610617bddd6c4bb6b9dda1af27c0c9e5a

SHA512
9ba0bfc2ebfbc5b0ef04d81e4d680693089b7e738daa5c8c62358f6e2e7007825e063f57125f9c602a69ecdbab18054d628d100c4ccc3bdaf9d366f061553948

Download Submit
memory/592-58-0x0000000000000000-mapping.dmp

Download
memory/692-63-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/692-64-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/692-74-0x0000000000860000-0x0000000000874000-memory.dmp

Filesize
80KB

Download
memory/692-73-0x0000000004E35000-0x0000000004E46000-memory.dmp

Filesize
68KB

Download
memory/692-60-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/692-61-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/692-71-0x0000000000250000-0x0000000000294000-memory.dmp

Filesize
272KB

Download
memory/692-70-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/692-65-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/692-66-0x00000000004944DE-mapping.dmp

Download
memory/692-68-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1756-57-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1756-54-0x0000000000E80000-0x0000000000F48000-memory.dmp

Filesize
800KB

Download
memory/1756-55-0x0000000000200000-0x0000000000212000-memory.dmp

Filesize
72KB

Download
memory/1756-56-0x0000000005440000-0x00000000054E2000-memory.dmp

Filesize
648KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads