masslogger | 8847ac1680030bbf54afbda6f552c4bdef8b66a510c0de95d845364270edf46a

General

Target

4-5114-HT.exe
Size

818KB
MD5

c8afbe0ba63c3dcde9c7c05b2e344951
SHA1

398ab5dd98b0720d4dd858a6da836e022a9d7849
SHA256

81ae80d0dc7e949cd78a6b555c1b08ebd8ec89ecf9847f3d1c0d9790b11be355
SHA512

6e5ca7f4c06a09d5e784a5d153236c93a663b6046366d1e81b32eab75c1ed886116a8548a6e11f1e5c09b517f89f93312e9cb0ff1d6688c60d9b6b1c5d1fd9cc

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\8236ADF044\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 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: 5/21/2022 3:08:02 PM MassLogger Started: 5/21/2022 3:07:59 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\4-5114-HT.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/1200-138-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger

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

Processes:

yara_rule

masslogger_log_file

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:

4-5114-HT.exe4-5114-HT.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	4-5114-HT.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	4-5114-HT.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:

4-5114-HT.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	4-5114-HT.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	4-5114-HT.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	4-5114-HT.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	4-5114-HT.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	4-5114-HT.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	4-5114-HT.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.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

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

Processes:

4-5114-HT.exe

description pid process target process

PID 3660 set thread context of 1200 3660 4-5114-HT.exe 4-5114-HT.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

5008 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

4-5114-HT.exe

pid process

1200 4-5114-HT.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

4-5114-HT.exe4-5114-HT.exe

pid process

3660 4-5114-HT.exe
3660 4-5114-HT.exe
1200 4-5114-HT.exe
1200 4-5114-HT.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

4-5114-HT.exe4-5114-HT.exe

description pid process

Token: SeDebugPrivilege 3660 4-5114-HT.exe
Token: SeDebugPrivilege 1200 4-5114-HT.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

4-5114-HT.exe

pid process

1200 4-5114-HT.exe

flow	ioc
65	api.ipify.org

description	pid	process	target process
PID 3660 set thread context of 1200	3660	4-5114-HT.exe	4-5114-HT.exe

pid	process
5008	schtasks.exe

pid	process
1200	4-5114-HT.exe

pid	process
3660	4-5114-HT.exe
3660	4-5114-HT.exe
1200	4-5114-HT.exe
1200	4-5114-HT.exe

description	pid	process
Token: SeDebugPrivilege	3660	4-5114-HT.exe
Token: SeDebugPrivilege	1200	4-5114-HT.exe

pid	process
1200	4-5114-HT.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

4-5114-HT.exe

description	pid	process	target process
PID 3660 wrote to memory of 5008	3660	4-5114-HT.exe	schtasks.exe
PID 3660 wrote to memory of 5008	3660	4-5114-HT.exe	schtasks.exe
PID 3660 wrote to memory of 5008	3660	4-5114-HT.exe	schtasks.exe
PID 3660 wrote to memory of 668	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 668	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 668	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 1200	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 1200	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 1200	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 1200	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 1200	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 1200	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 1200	3660	4-5114-HT.exe	4-5114-HT.exe
PID 3660 wrote to memory of 1200	3660	4-5114-HT.exe	4-5114-HT.exe

outlook_office_path 1 IoCs

Processes:

4-5114-HT.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe

outlook_win_path 1 IoCs

Processes:

4-5114-HT.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4-5114-HT.exe

C:\Users\Admin\AppData\Local\Temp\4-5114-HT.exe
"C:\Users\Admin\AppData\Local\Temp\4-5114-HT.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3660

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gHcqgvrO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE88B.tmp"
2⤵
- Creates scheduled task(s)
PID:5008

C:\Users\Admin\AppData\Local\Temp\4-5114-HT.exe
"{path}"
2⤵
PID:668

C:\Users\Admin\AppData\Local\Temp\4-5114-HT.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:1200

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\4-5114-HT.exe.log
Filesize
507B

MD5
ab4c71d3ff6255edd4e5c1e09540f49e

SHA1
22e06bf4e258741b5df918061871cba998c50cea

SHA256
1690fec628f775dd3c3385b800eed126b37978ef2ffd592b024052724caafb5a

SHA512
8fa7d0045796e6cda7c28e2b9a690ef550619828c1b5d0ebf8e8367aff4bf4d9f63121e5b4f199d30cb8006eb584c6767f4c59150749b8256dab9dd0ebd9f1af

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE88B.tmp
Filesize
1KB

MD5
1a3f3129adc37ab31135f0068590741b

SHA1
887cf53f2c4fe33f93db95b611130bdb6cf0d8d9

SHA256
42c66967598347f67f9d264bfc9377fc13c82811f936b73cc1a8fcd6adb1b899

SHA512
36eef4cde39da090705b45ed0998ed29276105aaac4a2d9eaf5d8561a2b3996bdc1b0f1e621fd6d4c4e470867f66eaf6a88e0d9a91622a4ebd059e2fd3db8a76

Download Submit
memory/668-136-0x0000000000000000-mapping.dmp

Download
memory/1200-137-0x0000000000000000-mapping.dmp

Download
memory/1200-138-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1200-140-0x0000000005700000-0x0000000005766000-memory.dmp

Filesize
408KB

Download
memory/1200-141-0x0000000007090000-0x000000000709A000-memory.dmp

Filesize
40KB

Download
memory/1200-142-0x0000000007790000-0x00000000077E0000-memory.dmp

Filesize
320KB

Download
memory/3660-133-0x0000000006870000-0x0000000006E14000-memory.dmp

Filesize
5.6MB

Download
memory/3660-132-0x0000000005890000-0x0000000005922000-memory.dmp

Filesize
584KB

Download
memory/3660-130-0x0000000000CD0000-0x0000000000DA2000-memory.dmp

Filesize
840KB

Download
memory/3660-131-0x0000000005750000-0x00000000057EC000-memory.dmp

Filesize
624KB

Download
memory/5008-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads