MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 78a881cbc86ce0458d8db0eae0c92a8e016537796ef3ab7928037f4a51d4ca2f. 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: | 78a881cbc86ce0458d8db0eae0c92a8e016537796ef3ab7928037f4a51d4ca2f |
|---|---|
| SHA3-384 hash: | 20d511ac4afcf3b897b4cd593b54061dcfae7497515f526ebc1f1d4079d113875205e65faf10ceca6e8517d1a421a305 |
| SHA1 hash: | 73c2226a8592f0a729a837013d40e5b55ecb4415 |
| MD5 hash: | 07b8be238ea7e4d28ab60dd6c485f663 |
| humanhash: | nine-sweet-ink-low |
| File name: | smokeweed.vbs |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 3'190 bytes |
| First seen: | 2021-02-26 06:13:41 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 48:Y2O+d1AJcccx2pJD+Jg9JuJIJIJgOezAK2O+Gcccx2pJD+Jg9JuJIJIJgOg:VA7kK |
| Threatray | 173 similar samples on MalwareBazaar |
| TLSH | F661BE0576D84A00ACE102438CDD76F48D1578C51CA8EDF2B9B86E1FADB4A84B9E4BD8 |
| Reporter |  abuse_ch |
| Tags: | QuasarRAT RAT vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Launching a process
Sending a UDP request
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Creating a file
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
Creates an undocumented autostart registry key
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Potential malicious VBS script found (suspicious strings)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: MSHTA Spawning Windows Shell
Suspicious powershell command line found
VBScript performs obfuscated calls to suspicious functions
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
Script-WScript.Trojan.Heuristic
Status:
Malicious
First seen:
2021-02-26 06:14:08 UTC
AV detection:
5 of 47 (10.64%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 163 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar spyware trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Blocklisted process makes network request
Quasar RAT
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: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| Rule name: | CN_disclosed_20180208_KeyLogger_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malware from disclosed CN malware set |
| Reference: | https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details |
| Rule name: | INDICATOR_SUSPICIOUS_GENInfoStealer |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables containing common artifcats observed in infostealers |
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | MALWARE_Win_QuasarRAT |
|---|---|
| Author: | ditekSHen |
| Description: | QuasarRAT payload |
| Rule name: | MAL_QuasarRAT_May19_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects QuasarRAT malware |
| Reference: | https://blog.ensilo.com/uncovering-new-activity-by-apt10 |
| Rule name: | MSILStealer |
|---|---|
| Author: | https://github.com/hwvs |
| Description: | Detects strings from C#/VB Stealers and QuasarRat |
| Reference: | https://github.com/quasar/QuasarRAT |
| Rule name: | Quasar |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect QuasarRAT in memory |
| 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: | Quasar_RAT_2 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Quasar RAT |
| Reference: | https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf |
| Rule name: | Select_from_enumeration |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | Vermin_Keylogger_Jan18_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Vermin Keylogger |
| Reference: | https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/ |
| Rule name: | WScript_Shell_PowerShell_Combo |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malware from Middle Eastern campaign reported by Talos |
| Reference: | http://blog.talosintelligence.com/2018/02/targeted-attacks-in-middle-east.html |
| Rule name: | xRAT_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Patchwork malware |
| Reference: | https://goo.gl/Pg3P4W |
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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