MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c6f13d8f71f1a05425087658e39ea7460122b3bcbe94690d70003d76f7a120a. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1c6f13d8f71f1a05425087658e39ea7460122b3bcbe94690d70003d76f7a120a
SHA3-384 hash: 884c21190076f25a15f0b44db69757136b880408c192e5844c63360192628391e16e08447e8cda988745a3f093eec21d
SHA1 hash: 443820d9e8783200bc85329496c071ea39a7a849
MD5 hash: ea1885af97a055e92ac4ea6406df7a9b
humanhash: freddie-tango-music-autumn
File name:Sample Inquiry Ref.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'144'320 bytes
First seen:2020-10-28 07:36:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:fxXZa7UJVA7/VRTiZdQH0sFRng7YyDt+TcraA:ZZVA7tRTCd00cgswicraA
TLSH 90357D9D365472DED87BC279DAE81C2CEAA0747B831B8207A01794DDA90C987EF541F3
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: mailsnd1.chol.com
Sending IP: 203.252.1.122
From: 장선옥 <jeongwon1@chol.com>
Subject: Price Inquiry
Attachment: Sample Inquiry Ref.zip (contains "Sample Inquiry Ref.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/80299/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Launching a process
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/514595
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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 AntiVM_3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1c6f13d8f71f1a05425087658e39ea7460122b3bcbe94690d70003d76f7a120a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 23:35:49 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=drxrhwhxd4nakqsqq5sy4opkorqbekz3zpuunegxaab5o332cifa._file
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger spyware stealer
Link:
https://tria.ge/reports/201028-43nhwp9y66/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
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
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/1c6f13d8f71f1a05425087658e39ea7460122b3bcbe94690d70003d76f7a120a

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
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:win_masslogger_w0
Create hunting rule
Author:govcert_ch

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

MassLogger

zip 7c41514345f32542fb4e14e372bc1eacd408895e52340680758fb1b1cbaf0ad1

MassLogger

Executable exe 1c6f13d8f71f1a05425087658e39ea7460122b3bcbe94690d70003d76f7a120a

(this sample)

  
Dropped by
MD5 f2fc275778e42a88f987c689c349ef4a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/80299/
  
Dropped by
SHA256 7c41514345f32542fb4e14e372bc1eacd408895e52340680758fb1b1cbaf0ad1

Comments