masslogger | 4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c

Analysis

max time kernel
131s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 12:29

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General

Target

4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Size

899KB
MD5

226ccf305c0971c6634d956809ee618f
SHA1

55615741a7d8f84f7edaaf0c5bc851944532f98d
SHA256

4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c
SHA512

2e0a60a33409a36cc3703fefcaa64f3c7907e53736bc549c5c7f3c93e99d0aba1e4fcbbaa82fe301724f7f93e47fc5f12957452baee9829966193a568d22a80c

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 v1.3.5.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 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 3:10:38 PM MassLogger Started: 5/21/2022 3:10:00 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
mail.mkontakt.az
Port:
587
Username:
[email protected]
Password:
Onyeoba111

Signatures

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

MassLogger Main Payload 32 IoCs

resource	yara_rule
behavioral2/memory/1492-136-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-138-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-140-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-142-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-144-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-146-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-148-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-150-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-152-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-154-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-156-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-158-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-160-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-162-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-164-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-166-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-168-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-170-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-172-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-174-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-176-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-178-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-180-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-182-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-184-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-186-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-188-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-190-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-194-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-192-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-196-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/1492-198-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.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.

flow	ioc
34	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4212 set thread context of 1492	4212	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe	82

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1492	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1492	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
1492	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1492	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1492	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 1492	4212	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe	82
PID 4212 wrote to memory of 1492	4212	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe	82
PID 4212 wrote to memory of 1492	4212	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe	82
PID 4212 wrote to memory of 1492	4212	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe	82
PID 4212 wrote to memory of 1492	4212	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe	82
PID 4212 wrote to memory of 1492	4212	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe	82
PID 4212 wrote to memory of 1492	4212	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe	82
PID 4212 wrote to memory of 1492	4212	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe

outlook_win_path 1 IoCs

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	4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe

C:\Users\Admin\AppData\Local\Temp\4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe
"C:\Users\Admin\AppData\Local\Temp\4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4212
- C:\Users\Admin\AppData\Local\Temp\4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.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:1492

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4f7ce008febd9fe224c7a7cec7d8abf8c0db3611fd14d8aca135041d21d2b45c.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1492-164-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-192-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-646-0x00000000083F0000-0x0000000008440000-memory.dmp

Filesize
320KB

Download
memory/1492-645-0x0000000005D20000-0x0000000005D86000-memory.dmp

Filesize
408KB

Download
memory/1492-136-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-162-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-140-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-142-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-144-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-146-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-148-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-150-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-152-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-154-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-156-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-158-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-166-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-138-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-198-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-160-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-168-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-170-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-172-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-174-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-176-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-178-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-180-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-182-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-184-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-186-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-188-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-190-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-194-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1492-196-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4212-130-0x0000000000540000-0x0000000000626000-memory.dmp

Filesize
920KB

Download
memory/4212-132-0x0000000004EB0000-0x0000000004F42000-memory.dmp

Filesize
584KB

Download
memory/4212-134-0x0000000007BD0000-0x0000000007C6C000-memory.dmp

Filesize
624KB

Download
memory/4212-133-0x0000000005190000-0x000000000519A000-memory.dmp

Filesize
40KB

Download
memory/4212-131-0x00000000053C0000-0x0000000005964000-memory.dmp

Filesize
5.6MB

Download