MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cdbc749cebbe862012e78f57d1d391db776a397db2d42f871dd25edeb7055f4e. 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: 9
| SHA256 hash: | cdbc749cebbe862012e78f57d1d391db776a397db2d42f871dd25edeb7055f4e |
|---|---|
| SHA3-384 hash: | 884eff40cac6ed63cfcc5e6d047cc1ee53598b088097f5b45113626765528377a369a37e140a3e72168ecf4e04f3c857 |
| SHA1 hash: | fa73a3bbd71a2ba1358a899b1dc0e4fc956bc872 |
| MD5 hash: | 4310aad51c7722f9136cbb0156e16718 |
| humanhash: | jig-ink-nebraska-vermont |
| File name: | h2A0vcug.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 356'352 bytes |
| First seen: | 2020-09-17 23:47:22 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger) |
| ssdeep | 6144:3TNHXf500MdFe4jngKBSb2tDjgL67ugOoLd51ZG:jd50VvndZJ8L6vRLd57G |
| Threatray | 87 similar samples on MalwareBazaar |
| TLSH | AC747C1377E4EA3BD1FE573AE43209154BB0D4477A16F38F9A5896B92C123868D413B3 |
| Reporter |  pmelson |
| Tags: | exe QuasarRAT VoidRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
110
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Using the Windows Management Instrumentation requests
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Setting a keyboard event handler
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops PE files with benign system names
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
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
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Detection:
quasarrat
Threat name:
ByteCode-MSIL.Backdoor.QuasarRAT
Status:
Malicious
First seen:
2020-09-17 23:49:06 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 77 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
trojan spyware family:quasar
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Looks up external IP address via web service
Loads dropped DLL
Executes dropped EXE
Quasar RAT
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Quasar
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: | 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: | 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: | 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: | 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.
Web download
Delivery method
Distributed via web download
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