masslogger | 2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd

General

Target

2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Size

627KB
MD5

2ddf6a0a66d234599cec8cf00621fce8
SHA1

16575fc344204981f2daf330e3d2277154e4136c
SHA256

2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd
SHA512

3ecc03abd2c9747490d4b206d6425afa1b5ee71a0d0b77eea9fcb408fca6d35183e681de9fc7fc6a0ad9211fbcedde69f908024acccbdde2f96a6587808e69f5

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v2.0.0.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 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: 5/20/2022 7:48:20 PM MassLogger Started: 5/20/2022 7:48:07 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.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.

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-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.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

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.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
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1064 set thread context of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1624	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1624	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
1624	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1624	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1064 wrote to memory of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28
PID 1064 wrote to memory of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28
PID 1064 wrote to memory of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28
PID 1064 wrote to memory of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28
PID 1064 wrote to memory of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28
PID 1064 wrote to memory of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28
PID 1064 wrote to memory of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28
PID 1064 wrote to memory of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28
PID 1064 wrote to memory of 1624	1064	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe

C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
"C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
  "C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe"
  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:1624

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1064-54-0x0000000000260000-0x0000000000304000-memory.dmp

Filesize
656KB

Download
memory/1064-55-0x00000000769D1000-0x00000000769D3000-memory.dmp

Filesize
8KB

Download
memory/1064-56-0x00000000005A0000-0x00000000005A8000-memory.dmp

Filesize
32KB

Download
memory/1064-57-0x0000000005270000-0x0000000005306000-memory.dmp

Filesize
600KB

Download
memory/1624-58-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1624-59-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1624-61-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1624-63-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1624-62-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1624-66-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1624-68-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1624-69-0x0000000000660000-0x00000000006A4000-memory.dmp

Filesize
272KB

Download
memory/1624-71-0x00000000007F0000-0x0000000000804000-memory.dmp

Filesize
80KB

Download
memory/1624-72-0x0000000000815000-0x0000000000826000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing