masslogger | 64661c33491d2f36f4012a5654e972dd2fe5440d1243a31c331ad37d7b8329d9

General

Target

inquiry specification.exe
Size

1.0MB
MD5

96ded925029c99194d0d559c6d7d6923
SHA1

807bb539671bf77090cb96000c01248080b467a9
SHA256

9a39817abcaf9b2ad45fecd4aec867e6989ece31d2dd41410622af0fc6547444
SHA512

6183c4a9540b00d5698bbe6c200aeba8ecf1e53ea17e3c97cd790c143f1cfc8cb27ca50d159f179e85917398d6191c9e3b75b33fb62bc8c90e75dc35e6c48cd5

Score

10^/10

masslogger collection evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.6.0 ################################################################# ### Logger Details ### 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 2:40:59 AM MassLogger Started: 5/21/2022 2:40:50 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\inquiry specification.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
mail.samlogistics.pk
Port:
587
Username:
[email protected]
Password:
Seaimport121@

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
behavioral1/memory/588-65-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-64-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-67-0x00000000004ACD3E-mapping.dmp	family_masslogger
behavioral1/memory/588-66-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-69-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-71-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-73-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-75-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-77-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-79-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-83-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-81-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-89-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-87-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-85-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-91-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-93-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-95-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-97-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-99-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-101-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-103-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-107-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-105-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-111-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-113-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-109-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-115-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-117-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-119-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-123-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/588-121-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger

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

Processes:

yara_rule

masslogger_log_file
Modifies visibility of file extensions in Explorer 2 TTPs
evasion

Hidden Files and Directories
T1158

Modify Registry
T1112

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

Processes:

inquiry specification.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	inquiry specification.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 15 IoCs

collection

Email Collection

T1114

Processes:

inquiry specification.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	inquiry specification.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	inquiry specification.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	inquiry specification.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	inquiry specification.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	inquiry specification.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	inquiry specification.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

inquiry specification.exe

description pid process target process

PID 1276 set thread context of 588 1276 inquiry specification.exe inquiry specification.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

856 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

inquiry specification.exeinquiry specification.exe

pid process

1276 inquiry specification.exe
1276 inquiry specification.exe
1276 inquiry specification.exe
588 inquiry specification.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

inquiry specification.exeinquiry specification.exe

description pid process

Token: SeDebugPrivilege 1276 inquiry specification.exe
Token: SeDebugPrivilege 588 inquiry specification.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1276 set thread context of 588	1276	inquiry specification.exe	inquiry specification.exe

pid	process
856	schtasks.exe

pid	process
1276	inquiry specification.exe
1276	inquiry specification.exe
1276	inquiry specification.exe
588	inquiry specification.exe

description	pid	process
Token: SeDebugPrivilege	1276	inquiry specification.exe
Token: SeDebugPrivilege	588	inquiry specification.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

inquiry specification.exe

description	pid	process	target process
PID 1276 wrote to memory of 856	1276	inquiry specification.exe	schtasks.exe
PID 1276 wrote to memory of 856	1276	inquiry specification.exe	schtasks.exe
PID 1276 wrote to memory of 856	1276	inquiry specification.exe	schtasks.exe
PID 1276 wrote to memory of 856	1276	inquiry specification.exe	schtasks.exe
PID 1276 wrote to memory of 316	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 316	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 316	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 316	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 588	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 588	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 588	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 588	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 588	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 588	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 588	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 588	1276	inquiry specification.exe	inquiry specification.exe
PID 1276 wrote to memory of 588	1276	inquiry specification.exe	inquiry specification.exe

outlook_office_path 1 IoCs

Processes:

inquiry specification.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe

outlook_win_path 1 IoCs

Processes:

inquiry specification.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	inquiry specification.exe

C:\Users\Admin\AppData\Local\Temp\inquiry specification.exe
"C:\Users\Admin\AppData\Local\Temp\inquiry specification.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1276

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pabVlICD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8086.tmp"
2⤵
- Creates scheduled task(s)
PID:856

C:\Users\Admin\AppData\Local\Temp\inquiry specification.exe
"{path}"
2⤵
PID:316

C:\Users\Admin\AppData\Local\Temp\inquiry specification.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:588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Hidden Files and Directories

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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\tmp8086.tmp
Filesize
1KB

MD5
066ee34ca4bfc9509722e7d55b6379ba

SHA1
ca9794dd978d390ec0150f855fe0c37390a66af8

SHA256
8769920917fbec9f93f9aed367478b30879f605122bfbf4636b28ef48ced0cf9

SHA512
604fef5cdea92db8c7502cf73cebd3c333dea14576938fed10f1220bc13c6237b747401258d9b89a37bccac09deb622ea74323c85eb857e0242f329968cb4893

Download Submit
memory/588-87-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-105-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-591-0x00000000021E0000-0x00000000021F4000-memory.dmp

Filesize
80KB

Download
memory/588-89-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-588-0x0000000000610000-0x0000000000654000-memory.dmp

Filesize
272KB

Download
memory/588-121-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-67-0x00000000004ACD3E-mapping.dmp

Download
memory/588-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-85-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-79-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-83-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-81-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-590-0x0000000004F65000-0x0000000004F76000-memory.dmp

Filesize
68KB

Download
memory/588-123-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-91-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-93-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-95-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-97-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-99-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-101-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-103-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-107-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-119-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-111-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-113-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-109-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-115-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/588-117-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/856-59-0x0000000000000000-mapping.dmp

Download
memory/1276-56-0x00000000002F0000-0x0000000000300000-memory.dmp

Filesize
64KB

Download
memory/1276-58-0x0000000000840000-0x00000000008F2000-memory.dmp

Filesize
712KB

Download
memory/1276-55-0x0000000075A61000-0x0000000075A63000-memory.dmp

Filesize
8KB

Download
memory/1276-54-0x0000000000180000-0x0000000000286000-memory.dmp

Filesize
1.0MB

Download
memory/1276-57-0x00000000058A0000-0x0000000005966000-memory.dmp

Filesize
792KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads