MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 d33b633b962e2851492365a557b624d4682620516513cde765b5e0428c69d917. 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
QuasarRAT
Vendor detections: 7
| SHA256 hash: | d33b633b962e2851492365a557b624d4682620516513cde765b5e0428c69d917 |
|---|---|
| SHA3-384 hash: | 09d930381a4ecb5f72c94b3166c3c51129a9e870001d386b3c2aa5ecb7c1639d06e820e4dad841e68a179e31a04a3e1a |
| SHA1 hash: | 465a176ae9b1ec3a8340128dd658afaf312b9a0d |
| MD5 hash: | 8a76a1a51563aef2532d9cbb90116bfc |
| humanhash: | kilo-robin-india-happy |
| File name: | Payment-Swift059_PDF.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 1'071'912 bytes |
| First seen: | 2020-10-26 13:03:37 UTC |
| Last seen: | 2020-10-26 15:21:19 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger) |
| ssdeep | 24576:+eg7C9YBStUtwGW9h+B/oynqEdv7Jg8NSzP2nc:iC9OSUGG0SnqEdv7JFGOnc |
| Threatray | 116 similar samples on MalwareBazaar |
| TLSH | 1935225933517A10D36D88380BCBEE312BB85BFAE937D61A9D9021CCC3D19C6786C4DA |
| Reporter |  abuse_ch |
| Tags: | exe QuasarRAT RAT |
abuse_ch
Malspam distributing QuasarRAT:HELO: tonyhai
Sending IP: 103.225.25.6
From: Finance Team <krajcik@materian.ml>
Subject: RE: HCCI OUTSTANDING PAYMENT $59,459 USD
Attachment: Payment-Swift059_PDF.zip (contains "Payment-Swift059_PDF.exe")
QuasarRAT C2:
23.105.131.221:9000
Intelligence
File Origin
# of uploads :
2
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection:
RDPWrap
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Unauthorized injection to a recently created process
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Launching the default Windows debugger (dwwin.exe)
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Sending a custom TCP request
Launching cmd.exe command interpreter
Creating a process with a hidden window
Launching the process to change the firewall settings
Launching a process
Creating a file in the mass storage device
Enabling autorun with the shell\open\command registry branches
Result
Threat name:
AgentTesla Quasar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Connects to a pastebin service (likely for C&C)
Contains functionality to hide user accounts
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses netsh to modify the Windows network and firewall settings
Yara detected AgentTesla
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2020-10-26 01:55:07 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 106 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
evasion persistence
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Modifies service
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Modifies Windows Firewall
Please note that we are no longer able to provide a coverage score for Virus Total.
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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