masslogger | 49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d | Triage

Analysis

max time kernel
144s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
16-05-2022 13:50

Sharing

Report Analysis Logs

General

Target

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Size

821KB
MD5

43971b982d0d0019c55f59c52254eee0
SHA1

567a0266c45f2759a7eb95b392a2052ccc00c066
SHA256

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d
SHA512

05ee55860bfde7b59d1f22695a12fcd4794dc5053cf76c598b11c20e2c2b9fc1fb1142c70488f94657f02e36ce38c2335274b778f3070eec7d3207448de23d59

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\0F48153F20\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 10 Pro64bit 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: 5/16/2022 2:57:17 PM MassLogger Started: 5/16/2022 2:57:13 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.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 Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5108-138-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger

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

Processes:

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

System Information Discovery

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.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

Email Collection

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.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

70 api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

description	pid	process	target process
PID 1236 set thread context of 5108	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.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

3864 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

pid process

5108 49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

pid	process
5108	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
5108	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

description pid process

Token: SeDebugPrivilege 5108 49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

pid process

5108 49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

description	pid	process	target process
PID 1236 wrote to memory of 3864	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	schtasks.exe
PID 1236 wrote to memory of 3864	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	schtasks.exe
PID 1236 wrote to memory of 3864	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	schtasks.exe
PID 1236 wrote to memory of 5108	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
PID 1236 wrote to memory of 5108	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
PID 1236 wrote to memory of 5108	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
PID 1236 wrote to memory of 5108	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
PID 1236 wrote to memory of 5108	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
PID 1236 wrote to memory of 5108	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
PID 1236 wrote to memory of 5108	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
PID 1236 wrote to memory of 5108	1236	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

outlook_office_path 1 IoCs

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.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	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

outlook_win_path 1 IoCs

Processes:

49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.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	49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

C:\Users\Admin\AppData\Local\Temp\49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
"C:\Users\Admin\AppData\Local\Temp\49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1236

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oPVKumm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF23F.tmp"
2⤵
- Creates scheduled task(s)
PID:3864

C:\Users\Admin\AppData\Local\Temp\49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.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:5108

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Credential Access

Credentials in Files

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF23F.tmp
Filesize
1KB

MD5
3a2d0b9cb7a273c328409fedfcd2f736

SHA1
04cb34e45ac7152c417cc34c8512509b98d131f4

SHA256
1a17aab007c2b02e52bb1f6ff229bfa8defc9e97f9c36178379d69fb0ea6de3a

SHA512
01c2c34c8d93dfb5914b9c0aafcbb2ae804180fe1c791a45202da965e1e4e0d27fde3ba767e1646beea49c5fbdfa1f4cdc79d8682b2f1d643f71542e8269065b

Download Submit
memory/1236-130-0x0000000000140000-0x0000000000214000-memory.dmp

Filesize
848KB

Download
memory/1236-131-0x0000000005200000-0x00000000057A4000-memory.dmp

Filesize
5.6MB

Download
memory/1236-132-0x0000000004C50000-0x0000000004CE2000-memory.dmp

Filesize
584KB

Download
memory/1236-133-0x0000000004BD0000-0x0000000004BDA000-memory.dmp

Filesize
40KB

Download
memory/1236-134-0x00000000083A0000-0x000000000843C000-memory.dmp

Filesize
624KB

Download
memory/3864-135-0x0000000000000000-mapping.dmp

Download
memory/5108-137-0x0000000000000000-mapping.dmp

Download
memory/5108-138-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/5108-140-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/5108-141-0x00000000082F0000-0x0000000008340000-memory.dmp

Filesize
320KB

Download