masslogger | f5be493b3851e69348d4e4386af39f571ba9c52925d404db5ad733abab20892c

General

Target

Request for new order.exe
Size

948KB
MD5

379abf3d912c4360aa57dcc1bf36425d
SHA1

8d93efda1d50ba3dc65c4def509a14ded2559b15
SHA256

31b2c043dac09d9f3c0050f5bdce779a26e4612f501573728d65188bb7684fbc
SHA512

d4fbf4c9c0dbaaf913c5328f96e3775b465c1f7bd4ea29bbc354f66d9a2f737276862c956c53c8c3d485b6d26bc2f94032e8087295d8e2a2ddf8187b5765fe50

Score

10^/10

masslogger collection evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 127.0.0.1 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 3:46:43 AM MassLogger Started: 5/21/2022 3:46:07 AM Interval: 9 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Request for new order.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
behavioral1/memory/1944-60-0x0000000009600000-0x00000000096A8000-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:

Request for new order.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	Request for new order.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:

Request for new order.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Request for new order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Request for new order.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Request for new order.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Request for new order.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Request for new order.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Request for new order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org
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

1340 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

Request for new order.exe

pid process

1944 Request for new order.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Request for new order.exe

pid process

1944 Request for new order.exe
1944 Request for new order.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Request for new order.exe

description pid process

Token: SeDebugPrivilege 1944 Request for new order.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Request for new order.exe

pid process

1944 Request for new order.exe

flow	ioc
4	api.ipify.org
5	api.ipify.org

pid	process
1340	schtasks.exe

pid	process
1944	Request for new order.exe

pid	process
1944	Request for new order.exe
1944	Request for new order.exe

description	pid	process
Token: SeDebugPrivilege	1944	Request for new order.exe

pid	process
1944	Request for new order.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

Request for new order.exe

description	pid	process	target process
PID 1944 wrote to memory of 1340	1944	Request for new order.exe	schtasks.exe
PID 1944 wrote to memory of 1340	1944	Request for new order.exe	schtasks.exe
PID 1944 wrote to memory of 1340	1944	Request for new order.exe	schtasks.exe
PID 1944 wrote to memory of 1340	1944	Request for new order.exe	schtasks.exe

outlook_office_path 1 IoCs

Processes:

Request for new order.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe

outlook_win_path 1 IoCs

Processes:

Request for new order.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for new order.exe

C:\Users\Admin\AppData\Local\Temp\Request for new order.exe
"C:\Users\Admin\AppData\Local\Temp\Request for new order.exe"
1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1944
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SOfprlxE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC24.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1340

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\tmpEC24.tmp

Filesize
1KB

MD5
8b1f3c9b3971222e70175d38149921ad

SHA1
a7efe1e487fe3a4f95e1b41615e85d909843ff9b

SHA256
b672e9392ccc8cefdb26c0f94b1a31388f55cc2823b5368cf7155e871b4e5d49

SHA512
7d97bd70620c62c8a179f2e92d0e2978adb634ddf84386cd540597d2affe6053685f5f02d29b44deb54ba5732d1884abe9a66238519c2bfc34ed695946015f58

Download Submit
memory/1340-58-0x0000000000000000-mapping.dmp

Download
memory/1944-54-0x0000000000EC0000-0x0000000000FB2000-memory.dmp

Filesize
968KB

Download
memory/1944-55-0x00000000765C1000-0x00000000765C3000-memory.dmp

Filesize
8KB

Download
memory/1944-56-0x00000000003E0000-0x00000000003E8000-memory.dmp

Filesize
32KB

Download
memory/1944-57-0x0000000005EB0000-0x0000000005F60000-memory.dmp

Filesize
704KB

Download
memory/1944-60-0x0000000009600000-0x00000000096A8000-memory.dmp

Filesize
672KB

Download
memory/1944-61-0x0000000005070000-0x00000000050B4000-memory.dmp

Filesize
272KB

Download
memory/1944-62-0x0000000004A25000-0x0000000004A36000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads