MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8e9a3943e6d8e8409b427e7ad9f60e43164d8ea99ae2755df7804013508c15a2. 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: 8
| SHA256 hash: | 8e9a3943e6d8e8409b427e7ad9f60e43164d8ea99ae2755df7804013508c15a2 |
|---|---|
| SHA3-384 hash: | ce9d9aa556e753889c92db4b7a3ed676a53f0cb6459b906696c5ce93ef84a9cfff8d49556beae94dd95849f32ab8eb50 |
| SHA1 hash: | 99d51b78c64d187d9e8eaa36d8a3d39e0bbb4df6 |
| MD5 hash: | 7087da8128aa173da193dd4b8432ed71 |
| humanhash: | wisconsin-salami-connecticut-freddie |
| File name: | SF24.vbs |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 836 bytes |
| First seen: | 2021-01-12 07:20:30 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 12:UrFgvWdXJ5tvANruoKkKJGcBY+096ea02WcAEr7JUsSJ9O7wWZqJJ3A1pEI+yJHI:QgAX1AQrkKS9pFct7nSTOt03AAIVlllw |
| Threatray | 168 similar samples on MalwareBazaar |
| TLSH | E701223F854282B88157D2869D35F8A7DE985288321B690EDDBDCADC348DCDC5631752 |
| Reporter |  abuse_ch |
| Tags: | QuasarRAT vbs |
abuse_ch
Malspam distributing QuasarRAT:HELO: mout.perfora.net
Sending IP: 74.208.4.197
From: TechBill#67549524625 <BillGlobal-id6754952@domain.com>
Subject: your order has been placed##675495
Attachment: SF24.ISO (contains "SF24.vbs")
QuasarRAT payload URL:
https://z.zz.ht/nlOiE.jpg
Intelligence
File Origin
# of uploads :
1
# of downloads :
443
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Sending a UDP request
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Forced shutdown of a system process
Creating a file in the %AppData% subdirectories
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Verdict:
MALICIOUS
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Drops VBS files to the startup folder
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Obfuscated command line found
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: Drops script at startup location
VBScript performs obfuscated calls to suspicious functions
Windows Shell Script Host drops VBS files
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM_3
Yara detected Costura Assembly Loader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2021-01-12 07:21:09 UTC
AV detection:
4 of 46 (8.70%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 158 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Blocklisted process makes network request
Malware Config
Dropper Extraction:
https://z.zz.ht/nlOiE.jpg
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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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