masslogger | a387eda9019c925849747107987f8e232b8c0da6f1f40dccec3eb525cc35d051

General

Target

RjJZqTyRrEpvftP.exe
Size

863KB
MD5

95b6c2e6cfef73be03af6ec5a4c82be8
SHA1

de12d0b9c6141d48b5cf436446071b57cab750be
SHA256

05634115b645d0df04cd66ef32a3d4301fda48edb1750d87f404e1ba73b6be04
SHA512

339cb7d10389e45aa87b0e8e76a95662e4a7487e8585ba58c085956b0fde873ab068a6b4880d96f2641aaa4b8ef786516292f936386201846ed5e986f008604d

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\EEB932C954\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 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 5:36:37 AM MassLogger Started: 5/21/2022 5:36:26 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:
requestShow@

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

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

Processes:

resource	yara_rule
behavioral2/memory/4704-130-0x0000000000FC0000-0x000000000109E000-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

Processes:

RjJZqTyRrEpvftP.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	RjJZqTyRrEpvftP.exe

Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\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.

Processes:

flow ioc

34 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

RjJZqTyRrEpvftP.exe

description pid process target process

PID 4704 set thread context of 372 4704 RjJZqTyRrEpvftP.exe MSBuild.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

424 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

MSBuild.exe

pid process

372 MSBuild.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

MSBuild.exe

pid process

372 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 372 MSBuild.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSBuild.exe

pid process

372 MSBuild.exe

flow	ioc
34	api.ipify.org

description	pid	process	target process
PID 4704 set thread context of 372	4704	RjJZqTyRrEpvftP.exe	MSBuild.exe

pid	process
424	schtasks.exe

pid	process
372	MSBuild.exe

pid	process
372	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	372	MSBuild.exe

pid	process
372	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

RjJZqTyRrEpvftP.exe

description	pid	process	target process
PID 4704 wrote to memory of 424	4704	RjJZqTyRrEpvftP.exe	schtasks.exe
PID 4704 wrote to memory of 424	4704	RjJZqTyRrEpvftP.exe	schtasks.exe
PID 4704 wrote to memory of 424	4704	RjJZqTyRrEpvftP.exe	schtasks.exe
PID 4704 wrote to memory of 372	4704	RjJZqTyRrEpvftP.exe	MSBuild.exe
PID 4704 wrote to memory of 372	4704	RjJZqTyRrEpvftP.exe	MSBuild.exe
PID 4704 wrote to memory of 372	4704	RjJZqTyRrEpvftP.exe	MSBuild.exe
PID 4704 wrote to memory of 372	4704	RjJZqTyRrEpvftP.exe	MSBuild.exe
PID 4704 wrote to memory of 372	4704	RjJZqTyRrEpvftP.exe	MSBuild.exe
PID 4704 wrote to memory of 372	4704	RjJZqTyRrEpvftP.exe	MSBuild.exe
PID 4704 wrote to memory of 372	4704	RjJZqTyRrEpvftP.exe	MSBuild.exe
PID 4704 wrote to memory of 372	4704	RjJZqTyRrEpvftP.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\RjJZqTyRrEpvftP.exe
"C:\Users\Admin\AppData\Local\Temp\RjJZqTyRrEpvftP.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4704

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gfqAVqPRN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8750.tmp"
2⤵
- Creates scheduled task(s)
PID:424

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:372

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

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8750.tmp
Filesize
1KB

MD5
21787ed96196c2ed78891ef5b2ab85c0

SHA1
6ea77f964e809fc4f825744e8da9dcdc722af776

SHA256
b15f32def272063aeea7c3384057cec433d68ec991b4f348826e79fb3d043c07

SHA512
8b13e4dc52a5a8b58af131295876da4a8b34f47f6d76f8b0ef5baf636c6ef1841ea2028a68700b99347136661d57f56850bf9f428979db2ad04f96950bf25fe6

Download Submit
memory/372-162-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-138-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-644-0x0000000007A10000-0x0000000007A60000-memory.dmp

Filesize
320KB

Download
memory/372-164-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-643-0x00000000060F0000-0x0000000006156000-memory.dmp

Filesize
408KB

Download
memory/372-168-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-137-0x0000000000000000-mapping.dmp

Download
memory/372-166-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-140-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-142-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-144-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-146-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-148-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-150-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-152-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-154-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-156-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-158-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-160-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-200-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-198-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-196-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-194-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-170-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-172-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-174-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-176-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-178-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-180-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-182-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-184-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-186-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-188-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-190-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/372-192-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/424-135-0x0000000000000000-mapping.dmp

Download
memory/4704-131-0x0000000006070000-0x0000000006614000-memory.dmp

Filesize
5.6MB

Download
memory/4704-132-0x0000000005AC0000-0x0000000005B52000-memory.dmp

Filesize
584KB

Download
memory/4704-134-0x00000000096E0000-0x000000000977C000-memory.dmp

Filesize
624KB

Download
memory/4704-130-0x0000000000FC0000-0x000000000109E000-memory.dmp

Filesize
888KB

Download
memory/4704-133-0x0000000005A40000-0x0000000005A4A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads