MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4e3fbf643241ed1d88707fd4a022c5fb312a75004af4ef18adb0b0fc47e6f5b7. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
MassLogger
Vendor detections: 8
| SHA256 hash: | 4e3fbf643241ed1d88707fd4a022c5fb312a75004af4ef18adb0b0fc47e6f5b7 |
|---|---|
| SHA3-384 hash: | 7fe450714a3f901779198c5f410b1ac8ebfd6576a7216e735ebccfbcc332f43b49683a48ccd4ab22b5cdac5e392f3b4a |
| SHA1 hash: | 7e7563a5209c3b41aafcb253ab418bd12f1b1109 |
| MD5 hash: | b0f7b5f3b31bee0ed725d4f7acbef97a |
| humanhash: | cold-violet-coffee-potato |
| File name: | Statement of Account from Fuzhou Jianxiang.exe |
| Download: | download sample |
| Signature | MassLogger |
| File size: | 291'096 bytes |
| First seen: | 2020-10-16 12:39:53 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 3072:CH7l0CcRNl4aNDA9oZsc7MGrHhao1SBMfWKWEyWF8f3AVQ6MJOE/cz4mjusLojEN:wlXcRv4cA9hfI |
| Threatray | 370 similar samples on MalwareBazaar |
| TLSH | 84547D02F1C46632797F743A11BB14F15F72BCA27E6BA66F8D6262232C40F457F1A846 |
| Reporter |  abuse_ch |
| Tags: | exe MassLogger |
abuse_ch
Malspam distributing MassLogger:HELO: m9746.mail.qiye.163.com
Sending IP: 220.181.97.46
From: sales <sale@jxmarine.com>
Subject: Statement of Account from Fuzhou Jianxiang
Attachment: Statement of Account from Fuzhou Jianxiang.gz (contains "Statement of Account from Fuzhou Jianxiang.exe")
MassLogger SMTP exfil server:
bh-58.webhostbox.net:587
Intelligence
File Origin
# of uploads :
1
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Launching a process
Creating a process with a hidden window
DNS request
Adding an access-denied ACE
Unauthorized injection to a recently created process
Launching the default Windows debugger (dwwin.exe)
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a window
Reading critical registry keys
Sending a TCP request to an infection source
Setting a global event handler for the keyboard
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Connects to a pastebin service (likely for C&C)
Contains functionality to hide a thread from the debugger
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Bluteal
Status:
Malicious
First seen:
2020-10-16 02:36:59 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
masslogger
Similar samples:
+ 360 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Score:
10/10
Tags:
stealer spyware family:masslogger
Behaviour
Delays execution with timeout.exe
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
4e3fbf643241ed1d88707fd4a022c5fb312a75004af4ef18adb0b0fc47e6f5b7
MD5 hash:
b0f7b5f3b31bee0ed725d4f7acbef97a
SHA1 hash:
7e7563a5209c3b41aafcb253ab418bd12f1b1109
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | masslogger_gcch |
|---|---|
| Author: | govcert_ch |
| Rule name: | win_masslogger_w0 |
|---|---|
| Author: | govcert_ch |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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