MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a39304a39ad9b9427b000045f7f5c60ed7790fe1a79d604ba9379bb94c0da593. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash: a39304a39ad9b9427b000045f7f5c60ed7790fe1a79d604ba9379bb94c0da593
SHA3-384 hash: dd7ac456bd00dbf1848c9eb3e2263d73abd931cd75e7520b879b1f51e4450465c569edea4505bc3a2236c3c47ef12535
SHA1 hash: 39b868b11fe71cc7d0bbb88f3ebb8198648808cc
MD5 hash: b9ca60bd296e8b80185f531b8fd82a8b
humanhash: dakota-white-fruit-snake
File name:DHL_January 2020 at 13M_9B7290_PDF.exe
Download: download sample
Signature MassLogger
File size:754'176 bytes
First seen:2021-01-13 20:11:21 UTC
Last seen:2021-01-13 21:59:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e7da020c2fad0c59a3d5e97971484548 (3 x Formbook, 2 x AgentTesla, 2 x Loki)
ssdeep 12288:7d6/UwByn2AkJcrHMkr+2oCu72bi2m98errq5OtrKFb0Ka3LwSuW9xpzz8Q/nm7:OAnKcn+2GZHFe0EFbCLwSvSQ/m7
Threatray 816 similar samples on MalwareBazaar
TLSH EDF4125A73F2C475D4B2013562948BB7E8BABC32167480BFFBE80D2E5E705D0566429F
Reporter abuse_ch
Tags:DHL exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: setentaytres229.nsprimario.com
Sending IP: 188.93.73.229
From: DHL EXPRESS <noreply@dhl.com>
Subject: Re: DHL Notification / DHL_AWB_001179703/ETD
Attachment: DHL_January 2020 at 13M_9B7290_PDF.img (contains "DHL_January 2020 at 13M_9B7290_PDF.exe")

MassLogger SMTP exfil server:
mail.beljemi.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
192
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL_January 2020 at 13M_9B7290_PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-01-14 05:25:20 UTC
Tags:
evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a UDP request
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Detected unpacking (creates a PE file in dynamic memory)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
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:
Win32.Infostealer.Maslog
Status:
Malicious
First seen:
2021-01-13 20:12:10 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
family:masslogger spyware stealer
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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:
a39304a39ad9b9427b000045f7f5c60ed7790fe1a79d604ba9379bb94c0da593
MD5 hash:
b9ca60bd296e8b80185f531b8fd82a8b
SHA1 hash:
39b868b11fe71cc7d0bbb88f3ebb8198648808cc
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:kevoreilly
Description:MassLogger
Rule name:masslogger_gcch
Author:govcert_ch
Rule name:Quasar_RAT_1
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
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

MassLogger

Executable exe a39304a39ad9b9427b000045f7f5c60ed7790fe1a79d604ba9379bb94c0da593

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments