masslogger | f1e4fd001ddab683c7aa0e2b032e32c880fc74217d28a8f05888b9c56cf01e06

Analysis

max time kernel
91s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 01:52

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General

Target

QUOTATION.exe
Size

864KB
MD5

c2b1fcf142b7b221817ace1073ba58ae
SHA1

e8952c01300ae5a7ca6cc2e24807a6c12aa556ce
SHA256

6d23e4cb2a7704f3ebeaf44893bb9c1df101f0f03d522ceb51a0e1cfc7f8e8ec
SHA512

6c82b754c8e4c2df128f5f562867d59cfabe1feb24a8adc2ec1db3a6c545ed59de18f8804689bf0ef4f81abf3e169ac937fdaaf66b2daaaa32d96772cd5ec3b9

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\781F780B4E\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 2:48:09 AM MassLogger Started: 5/21/2022 2:48:06 AM Interval: 2 hour MassLogger Process: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe As Administrator: True

Extracted

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
biggod1234@

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

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

resource	yara_rule
behavioral2/memory/4040-133-0x0000000000190000-0x000000000026E000-memory.dmp	coreccc

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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	QUOTATION.exe

Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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
17	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4040 set thread context of 1996	4040	QUOTATION.exe	83

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
912	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1996	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1996	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1996	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4040 wrote to memory of 912	4040	QUOTATION.exe	81
PID 4040 wrote to memory of 912	4040	QUOTATION.exe	81
PID 4040 wrote to memory of 912	4040	QUOTATION.exe	81
PID 4040 wrote to memory of 1996	4040	QUOTATION.exe	83
PID 4040 wrote to memory of 1996	4040	QUOTATION.exe	83
PID 4040 wrote to memory of 1996	4040	QUOTATION.exe	83
PID 4040 wrote to memory of 1996	4040	QUOTATION.exe	83
PID 4040 wrote to memory of 1996	4040	QUOTATION.exe	83
PID 4040 wrote to memory of 1996	4040	QUOTATION.exe	83
PID 4040 wrote to memory of 1996	4040	QUOTATION.exe	83
PID 4040 wrote to memory of 1996	4040	QUOTATION.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4040
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RGyOmdC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAF9E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:912
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  - 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:1996

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

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpAF9E.tmp

Filesize
1KB

MD5
a2f3157e19267b062e88311127a7c244

SHA1
c851a9b69272cea238f2cfbe0735cba2caac7047

SHA256
728b73e32e02caed296db4faca17008c048595ade9fed12a05a81ca6b10d36b4

SHA512
887338efe0d20eee7de3cdbdd5892dde33ebea0aeebcd02dd9ed5901770e5b4036c3c9c784f54c7c75f61816f42f6d890c1bb4d057b07a8f41e8f55a21086a63

Download Submit
memory/1996-163-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-197-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-647-0x0000000008360000-0x00000000083B0000-memory.dmp

Filesize
320KB

Download
memory/1996-646-0x00000000065E0000-0x0000000006646000-memory.dmp

Filesize
408KB

Download
memory/1996-203-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-201-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-143-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-145-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-147-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-149-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-151-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-153-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-155-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-157-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-159-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-161-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-169-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-141-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-199-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-165-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-171-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-173-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-175-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-177-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-179-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-181-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-183-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-185-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-187-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-191-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-189-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-193-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-195-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1996-167-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4040-136-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download
memory/4040-133-0x0000000000190000-0x000000000026E000-memory.dmp

Filesize
888KB

Download
memory/4040-134-0x0000000005120000-0x00000000056C4000-memory.dmp

Filesize
5.6MB

Download
memory/4040-135-0x0000000004C10000-0x0000000004CA2000-memory.dmp

Filesize
584KB

Download
memory/4040-137-0x00000000088B0000-0x000000000894C000-memory.dmp

Filesize
624KB

Download