MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4bdcab6e5a078fb21d0ce208f9b9b025fc7a3baa049c359d7664c7a00ac83d30. 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: 10
| SHA256 hash: | 4bdcab6e5a078fb21d0ce208f9b9b025fc7a3baa049c359d7664c7a00ac83d30 |
|---|---|
| SHA3-384 hash: | f818e5bb1a944bcbca31bb5eb53d2a0c200bb47b150d80fb0abb329a8abc04afa46e40419e495cd395458fc42948f348 |
| SHA1 hash: | 8deb793b6174216db50f33d676e267ed2580d7c4 |
| MD5 hash: | cd077c0e8e530e87178d789282d62779 |
| humanhash: | delta-cup-coffee-robert |
| File name: | 4bdcab6e5a078fb21d0ce208f9b9b025fc7a3baa049c359d7664c7a00ac83d30 |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 312'832 bytes |
| First seen: | 2021-02-23 15:27:43 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 6144:nWlTc2tIGxz9Mfr4rsFCoiiDdxl4qZYZe+folsCCeNnSVH:WlTcQIq9MfUr8EGdxl1ZYRCCeK |
| Threatray | 171 similar samples on MalwareBazaar |
| TLSH | 4A64230057ED4C90EE9A13FDCC66168A33396504767E3CCB4BDEEA9EACB517C0063969 |
| Reporter |  JAMESWT_WT |
| Tags: | QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Detection:
QuasarRAT
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Sending a UDP request
DNS request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Quasar
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Contains functionality to disable the Task Manager (.Net Source)
Deletes shadow drive data (may be related to ransomware)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2021-02-09 13:13:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
35 of 48 (72.92%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 161 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
6/10
Tags:
persistence
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Unpacked files
SH256 hash:
47f41e62c82fd4cc13421f8cc04637abe5c061d1a83ac60e9dd36f2a09e513f9
MD5 hash:
8ecacd719806fd4585e3a9fee3c6fffc
SHA1 hash:
a7045ce969ed18e68cafea38898bf5d3b71de253
SH256 hash:
4e3b25c0e6b46114a6e6298d48356703f1712f0aecda6fdafcb517bb8baf5950
MD5 hash:
b33f5157b60127e3c29039e1137f981c
SHA1 hash:
10d53b6602e4f51fb19e87088411057ca807ff73
Detections:
win_blackshades_w0
SH256 hash:
4bdcab6e5a078fb21d0ce208f9b9b025fc7a3baa049c359d7664c7a00ac83d30
MD5 hash:
cd077c0e8e530e87178d789282d62779
SHA1 hash:
8deb793b6174216db50f33d676e267ed2580d7c4
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | CAP_HookExKeylogger |
|---|---|
| Author: | Brian C. Bell -- @biebsmalwareguy |
| Reference: | https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar |
| 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_EXE_Packed_NyanXCat_CSharpLoader |
|---|---|
| Author: | ditekSHen |
| Description: | Detects .NET executables utilizing NyanX-CAT C# Loader |
| Rule name: | INDICATOR_SUSPICIOUS_GENInfoStealer |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables containing common artifcats observed in infostealers |
| Rule name: | INDICATOR_SUSPICIOUS_GENRansomware |
|---|---|
| Author: | ditekSHen |
| Description: | detects command variations typically used by ransomware |
| 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: | win_blackshades_w0 |
|---|---|
| Author: | Jean-Philippe Teissier / @Jipe_ |
| 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.
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