masslogger | 0b1e16ec3b9df30065ab12858d60db441afa2ad9f96e9a32e1f6c94eb675c71c

General

Target

RFQ #031-24062020.exe
Size

729KB
MD5

4400d1b5d0c379b8e5dade14b3346569
SHA1

5d7a1f8777069ac6462cdcd7aaa885b10e23472f
SHA256

851f1641fb283113cc5feb03c807bc82dc4d85ecd22ab8ff091a8edd71bb45ed
SHA512

75a275fda65c52cc831fc4750aecfc23408c86db5e0532566701902c32ac3807a918a89286f3ff795173c0af7cc5cf8e5c63a3c61fbc5762ed0cfe3d89386dd6

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\F95B724EDE\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v2.0.0.0 ################################################################# ### Logger Details ### User Name: Admin IP: 127.0.0.1 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 2:39:54 PM MassLogger Started: 5/21/2022 2:39:41 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\RFQ #031-24062020.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

RFQ #031-24062020.exeRFQ #031-24062020.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	RFQ #031-24062020.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	RFQ #031-24062020.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 18 IoCs

collection

Email Collection

T1114

Processes:

RFQ #031-24062020.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RFQ #031-24062020.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RFQ #031-24062020.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RFQ #031-24062020.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RFQ #031-24062020.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RFQ #031-24062020.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RFQ #031-24062020.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.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:

RFQ #031-24062020.exe

description pid process target process

PID 1964 set thread context of 920 1964 RFQ #031-24062020.exe RFQ #031-24062020.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

3120 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

RFQ #031-24062020.exe

pid process

920 RFQ #031-24062020.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

RFQ #031-24062020.exeRFQ #031-24062020.exe

pid process

1964 RFQ #031-24062020.exe
1964 RFQ #031-24062020.exe
920 RFQ #031-24062020.exe
920 RFQ #031-24062020.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ #031-24062020.exeRFQ #031-24062020.exe

description pid process

Token: SeDebugPrivilege 1964 RFQ #031-24062020.exe
Token: SeDebugPrivilege 920 RFQ #031-24062020.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RFQ #031-24062020.exe

pid process

920 RFQ #031-24062020.exe

flow	ioc
34	api.ipify.org

description	pid	process	target process
PID 1964 set thread context of 920	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe

pid	process
3120	schtasks.exe

pid	process
920	RFQ #031-24062020.exe

pid	process
1964	RFQ #031-24062020.exe
1964	RFQ #031-24062020.exe
920	RFQ #031-24062020.exe
920	RFQ #031-24062020.exe

description	pid	process
Token: SeDebugPrivilege	1964	RFQ #031-24062020.exe
Token: SeDebugPrivilege	920	RFQ #031-24062020.exe

pid	process
920	RFQ #031-24062020.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

RFQ #031-24062020.exe

description	pid	process	target process
PID 1964 wrote to memory of 3120	1964	RFQ #031-24062020.exe	schtasks.exe
PID 1964 wrote to memory of 3120	1964	RFQ #031-24062020.exe	schtasks.exe
PID 1964 wrote to memory of 3120	1964	RFQ #031-24062020.exe	schtasks.exe
PID 1964 wrote to memory of 4492	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 4492	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 4492	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 920	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 920	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 920	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 920	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 920	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 920	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 920	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe
PID 1964 wrote to memory of 920	1964	RFQ #031-24062020.exe	RFQ #031-24062020.exe

outlook_office_path 1 IoCs

Processes:

RFQ #031-24062020.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe

outlook_win_path 1 IoCs

Processes:

RFQ #031-24062020.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ #031-24062020.exe

C:\Users\Admin\AppData\Local\Temp\RFQ #031-24062020.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ #031-24062020.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sbNdcfppRTjATG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD2FF.tmp"
2⤵
- Creates scheduled task(s)
PID:3120

C:\Users\Admin\AppData\Local\Temp\RFQ #031-24062020.exe
"{path}"
2⤵
PID:4492

C:\Users\Admin\AppData\Local\Temp\RFQ #031-24062020.exe
"{path}"
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:920

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

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ #031-24062020.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD2FF.tmp
Filesize
1KB

MD5
5620ebec49bdb373b5e698c8918734d4

SHA1
f86dc997d78c0f2549b2fa04afd63f505c3b4f0b

SHA256
b5f26c40556d13ea061d56b716b32f6c78bde793d633862b9954e54b8f376bff

SHA512
42d120c6f310abbcaeace5dc7c776665689052313da860d25f79f1d845cb08f1ac85b49cc2002c2e74eea23dff38626f99b561e57b455ce44ba6293a5d92e4d0

Download Submit
memory/920-139-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/920-138-0x0000000000000000-mapping.dmp

Download
memory/920-141-0x0000000005600000-0x0000000005666000-memory.dmp

Filesize
408KB

Download
memory/920-142-0x0000000008420000-0x0000000008470000-memory.dmp

Filesize
320KB

Download
memory/1964-133-0x0000000005150000-0x000000000515A000-memory.dmp

Filesize
40KB

Download
memory/1964-134-0x0000000008D10000-0x0000000008DAC000-memory.dmp

Filesize
624KB

Download
memory/1964-132-0x00000000051A0000-0x0000000005232000-memory.dmp

Filesize
584KB

Download
memory/1964-130-0x0000000000840000-0x00000000008FC000-memory.dmp

Filesize
752KB

Download
memory/1964-131-0x00000000058A0000-0x0000000005E44000-memory.dmp

Filesize
5.6MB

Download
memory/3120-135-0x0000000000000000-mapping.dmp

Download
memory/4492-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads