masslogger | 4c6bcd85ef99fb48c482173081c331c24c791f3963ea3ac5b6364ba62b42ddee

General

Target

HDFCR52020061784196958 PDF.exe
Size

852KB
MD5

ccc19de53da5589da2a83995e22c649b
SHA1

b44010fa8d9ac9e57bdca725d1497288bcd1bb72
SHA256

00d6fd04656c60eb2712da13fd06488de59c25e79c18b2a8ae2b2ed12c4e030f
SHA512

344c5a6a99e506574c361adc6e6d7f040688d55d2323a8df2acc17a74d682686e46f73fee386f1886d53461197db6be6eba32460455d3a9efab8e47185d52790

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 v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 127.0.0.1 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 2:11:59 PM MassLogger Started: 5/21/2022 2:11:46 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\HDFCR52020061784196958 PDF.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

resource	yara_rule
behavioral2/memory/2980-136-0x0000000000400000-0x00000000004A8000-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	HDFCR52020061784196958 PDF.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 queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	HDFCR52020061784196958 PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	HDFCR52020061784196958 PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	HDFCR52020061784196958 PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	HDFCR52020061784196958 PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	HDFCR52020061784196958 PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HDFCR52020061784196958 PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	HDFCR52020061784196958 PDF.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
33	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3448 set thread context of 2980	3448	HDFCR52020061784196958 PDF.exe	78

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2980	HDFCR52020061784196958 PDF.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3448	HDFCR52020061784196958 PDF.exe
3448	HDFCR52020061784196958 PDF.exe
2980	HDFCR52020061784196958 PDF.exe
2980	HDFCR52020061784196958 PDF.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3448	HDFCR52020061784196958 PDF.exe
Token: SeDebugPrivilege	2980	HDFCR52020061784196958 PDF.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2980	HDFCR52020061784196958 PDF.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3448 wrote to memory of 2876	3448	HDFCR52020061784196958 PDF.exe	77
PID 3448 wrote to memory of 2876	3448	HDFCR52020061784196958 PDF.exe	77
PID 3448 wrote to memory of 2876	3448	HDFCR52020061784196958 PDF.exe	77
PID 3448 wrote to memory of 2980	3448	HDFCR52020061784196958 PDF.exe	78
PID 3448 wrote to memory of 2980	3448	HDFCR52020061784196958 PDF.exe	78
PID 3448 wrote to memory of 2980	3448	HDFCR52020061784196958 PDF.exe	78
PID 3448 wrote to memory of 2980	3448	HDFCR52020061784196958 PDF.exe	78
PID 3448 wrote to memory of 2980	3448	HDFCR52020061784196958 PDF.exe	78
PID 3448 wrote to memory of 2980	3448	HDFCR52020061784196958 PDF.exe	78
PID 3448 wrote to memory of 2980	3448	HDFCR52020061784196958 PDF.exe	78
PID 3448 wrote to memory of 2980	3448	HDFCR52020061784196958 PDF.exe	78

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	HDFCR52020061784196958 PDF.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	HDFCR52020061784196958 PDF.exe

C:\Users\Admin\AppData\Local\Temp\HDFCR52020061784196958 PDF.exe
"C:\Users\Admin\AppData\Local\Temp\HDFCR52020061784196958 PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3448
- C:\Users\Admin\AppData\Local\Temp\HDFCR52020061784196958 PDF.exe
  "{path}"
  2⤵
  PID:2876
- C:\Users\Admin\AppData\Local\Temp\HDFCR52020061784196958 PDF.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:2980

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/2980-136-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2980-137-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/2980-138-0x0000000007660000-0x000000000766A000-memory.dmp

Filesize
40KB

Download
memory/2980-139-0x0000000008540000-0x0000000008590000-memory.dmp

Filesize
320KB

Download
memory/3448-130-0x0000000000830000-0x000000000090C000-memory.dmp

Filesize
880KB

Download
memory/3448-131-0x00000000052B0000-0x0000000005342000-memory.dmp

Filesize
584KB

Download
memory/3448-132-0x0000000005350000-0x00000000053EC000-memory.dmp

Filesize
624KB

Download
memory/3448-133-0x0000000007390000-0x0000000007934000-memory.dmp

Filesize
5.6MB

Download

Analysis

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