masslogger | 6fdc07b8f99515de29d76b4bd2eaed4189a40424c3220078d9a6107d4d467ca7

General

Target

RFQ-654J.PDF.exe
Size

1.0MB
MD5

ed36232d90ecf5e26f7a3d3e47a69538
SHA1

0b763bbb18497413aa94fba4196b71a5e63b15f2
SHA256

bf6cfbc2faffe3db3f98b7bbbf7e4af52e034b84091f38d786b4ed9477d6a574
SHA512

0d81d2f789418c65b59cdc0d41629d51a3eeb91bded36abc956378e2b2ecad0b41de38b415b56699a6403f1f6ed45e3c5b5cee1bdd426169acdbe51c305f1cf3

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 v1.3.7.0 ################################################################# ### 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 6:12:48 AM MassLogger Started: 5/21/2022 6:12:40 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\RFQ-654J.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

Processes:

resource	yara_rule
behavioral2/memory/4528-139-0x0000000000400000-0x00000000004A8000-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:

RFQ-654J.PDF.exeRFQ-654J.PDF.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	RFQ-654J.PDF.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	RFQ-654J.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

Processes:

RFQ-654J.PDF.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RFQ-654J.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	RFQ-654J.PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RFQ-654J.PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RFQ-654J.PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RFQ-654J.PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RFQ-654J.PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RFQ-654J.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	RFQ-654J.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.

Processes:

flow ioc

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

Processes:

RFQ-654J.PDF.exe

description pid process target process

PID 2636 set thread context of 4528 2636 RFQ-654J.PDF.exe RFQ-654J.PDF.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

5100 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

RFQ-654J.PDF.exe

pid process

4528 RFQ-654J.PDF.exe

flow	ioc
43	api.ipify.org

description	pid	process	target process
PID 2636 set thread context of 4528	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe

pid	process
5100	schtasks.exe

pid	process
4528	RFQ-654J.PDF.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

RFQ-654J.PDF.exeRFQ-654J.PDF.exe

pid	process
2636	RFQ-654J.PDF.exe
2636	RFQ-654J.PDF.exe
2636	RFQ-654J.PDF.exe
2636	RFQ-654J.PDF.exe
2636	RFQ-654J.PDF.exe
2636	RFQ-654J.PDF.exe
4528	RFQ-654J.PDF.exe
4528	RFQ-654J.PDF.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ-654J.PDF.exeRFQ-654J.PDF.exe

description pid process

Token: SeDebugPrivilege 2636 RFQ-654J.PDF.exe
Token: SeDebugPrivilege 4528 RFQ-654J.PDF.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RFQ-654J.PDF.exe

pid process

4528 RFQ-654J.PDF.exe

description	pid	process
Token: SeDebugPrivilege	2636	RFQ-654J.PDF.exe
Token: SeDebugPrivilege	4528	RFQ-654J.PDF.exe

pid	process
4528	RFQ-654J.PDF.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

RFQ-654J.PDF.exe

description	pid	process	target process
PID 2636 wrote to memory of 5100	2636	RFQ-654J.PDF.exe	schtasks.exe
PID 2636 wrote to memory of 5100	2636	RFQ-654J.PDF.exe	schtasks.exe
PID 2636 wrote to memory of 5100	2636	RFQ-654J.PDF.exe	schtasks.exe
PID 2636 wrote to memory of 4532	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4532	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4532	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4528	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4528	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4528	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4528	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4528	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4528	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4528	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe
PID 2636 wrote to memory of 4528	2636	RFQ-654J.PDF.exe	RFQ-654J.PDF.exe

outlook_office_path 1 IoCs

Processes:

RFQ-654J.PDF.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-654J.PDF.exe

outlook_win_path 1 IoCs

Processes:

RFQ-654J.PDF.exe

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	RFQ-654J.PDF.exe

C:\Users\Admin\AppData\Local\Temp\RFQ-654J.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ-654J.PDF.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AeDtRRF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9700.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:5100
- C:\Users\Admin\AppData\Local\Temp\RFQ-654J.PDF.exe
  "{path}"
  2⤵
  PID:4532
- C:\Users\Admin\AppData\Local\Temp\RFQ-654J.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:4528

Network

MITRE ATT&CK Enterprise 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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ-654J.PDF.exe.log

Filesize
1KB

MD5
400f1cc1a0a0ce1cdabda365ab3368ce

SHA1
1ecf683f14271d84f3b6063493dce00ff5f42075

SHA256
c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

SHA512
14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9700.tmp

Filesize
1KB

MD5
5e4af870a339f862ed1bc6c948ff5bda

SHA1
0719fdebe74c9e985bde524d5c0904d9d9ce5d8a

SHA256
0d4e1fa5f2a2786884a3591d7ce4568d66d10ec87afed01637313d462bc27eee

SHA512
fdd21e364ea82568a38b88e3bf1c4b38de07fcc4f479654f6c1a028f20ab5fc978d2a09e6ddb6d95c405193eba763de08639978a23f18fff9831937a9eebc05f

Download Submit
memory/2636-133-0x00000000051C0000-0x00000000051CA000-memory.dmp

Filesize
40KB

Download
memory/2636-130-0x0000000000370000-0x0000000000480000-memory.dmp

Filesize
1.1MB

Download
memory/2636-134-0x0000000007720000-0x00000000077BC000-memory.dmp

Filesize
624KB

Download
memory/2636-132-0x00000000051E0000-0x0000000005272000-memory.dmp

Filesize
584KB

Download
memory/2636-131-0x00000000055F0000-0x0000000005B94000-memory.dmp

Filesize
5.6MB

Download
memory/4528-138-0x0000000000000000-mapping.dmp

Download
memory/4528-139-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4528-141-0x00000000052F0000-0x0000000005356000-memory.dmp

Filesize
408KB

Download
memory/4528-142-0x0000000007EB0000-0x0000000007F00000-memory.dmp

Filesize
320KB

Download
memory/4532-137-0x0000000000000000-mapping.dmp

Download
memory/5100-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads