masslogger | 8f454599de85acba90becf21df70d90ee0c760b58f7fb86b12a5d29d98efc62b

General

Target

P.O250520.exe
Size

815KB
MD5

aa5fb011e59d1e2a8bef56360a4f31b4
SHA1

5c80c907e0792bdf8d6d4a48ebcbb3493570b78b
SHA256

5c826e35fe48ce5410e9c553242a83e71b2408a57d3256bcd0bd4334412010b0
SHA512

f2ca54693c8a00ed447f026d309a2654c05a448f1b4d435b6d7d719d9f1798c687cc3e307a3ec53f9d1fea73e448cae91b16ccf31b59b2f17bd7bd44a46f681d

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 12:50:04 PM MassLogger Started: 5/21/2022 12:50:01 PM Interval: 2 hour MassLogger Process: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe As Administrator: True

Extracted

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
don8@intarscan.org
Password:
?qlva43X~o%I

Signatures

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

MassLogger Main Payload 32 IoCs

Processes:

resource	yara_rule
behavioral2/memory/548-136-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-138-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-140-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-142-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-144-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-146-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-148-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-150-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-152-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-154-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-156-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-158-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-160-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-162-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-164-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-166-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-168-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-170-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-172-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-174-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-176-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-178-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-180-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-182-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-184-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-186-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-188-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-190-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-192-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-194-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-196-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral2/memory/548-198-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger

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

Processes:

yara_rule

masslogger_log_file

yara_rule
masslogger_log_file

Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

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	RegSvcs.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RegSvcs.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RegSvcs.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RegSvcs.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RegSvcs.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RegSvcs.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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

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

Processes:

P.O250520.exe

description pid process target process

PID 4236 set thread context of 548 4236 P.O250520.exe RegSvcs.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

RegSvcs.exe

pid process

548 RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

P.O250520.exeRegSvcs.exe

pid process

4236 P.O250520.exe
4236 P.O250520.exe
4236 P.O250520.exe
4236 P.O250520.exe
548 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

P.O250520.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 4236 P.O250520.exe
Token: SeDebugPrivilege 548 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

548 RegSvcs.exe

flow	ioc
15	api.ipify.org

description	pid	process	target process
PID 4236 set thread context of 548	4236	P.O250520.exe	RegSvcs.exe

pid	process
548	RegSvcs.exe

pid	process
4236	P.O250520.exe
4236	P.O250520.exe
4236	P.O250520.exe
4236	P.O250520.exe
548	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4236	P.O250520.exe
Token: SeDebugPrivilege	548	RegSvcs.exe

pid	process
548	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

P.O250520.exe

description	pid	process	target process
PID 4236 wrote to memory of 548	4236	P.O250520.exe	RegSvcs.exe
PID 4236 wrote to memory of 548	4236	P.O250520.exe	RegSvcs.exe
PID 4236 wrote to memory of 548	4236	P.O250520.exe	RegSvcs.exe
PID 4236 wrote to memory of 548	4236	P.O250520.exe	RegSvcs.exe
PID 4236 wrote to memory of 548	4236	P.O250520.exe	RegSvcs.exe
PID 4236 wrote to memory of 548	4236	P.O250520.exe	RegSvcs.exe
PID 4236 wrote to memory of 548	4236	P.O250520.exe	RegSvcs.exe
PID 4236 wrote to memory of 548	4236	P.O250520.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

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

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

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	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\P.O250520.exe
"C:\Users\Admin\AppData\Local\Temp\P.O250520.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4236

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:548

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/548-164-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-192-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-644-0x0000000007650000-0x00000000076A0000-memory.dmp

Filesize
320KB

Download
memory/548-643-0x0000000006000000-0x0000000006066000-memory.dmp

Filesize
408KB

Download
memory/548-198-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-135-0x0000000000000000-mapping.dmp

Download
memory/548-160-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-138-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-140-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-142-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-144-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-146-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-148-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-150-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-152-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-154-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-156-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-196-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-136-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-194-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-158-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-166-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-168-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-170-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-172-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-174-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-176-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-178-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-180-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-182-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-184-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-186-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-188-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-190-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/548-162-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/4236-131-0x0000000005AD0000-0x0000000006074000-memory.dmp

Filesize
5.6MB

Download
memory/4236-130-0x0000000000840000-0x0000000000912000-memory.dmp

Filesize
840KB

Download
memory/4236-134-0x0000000008DF0000-0x0000000008E8C000-memory.dmp

Filesize
624KB

Download
memory/4236-133-0x0000000005660000-0x000000000566A000-memory.dmp

Filesize
40KB

Download
memory/4236-132-0x00000000056C0000-0x0000000005752000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads