MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a06fc050c72cc1155f996e5ce2528f0a35d02339e3f507721bb41682730f95b. 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: 11


Intelligence 11 IOCs YARA 12 File information Comments

SHA256 hash: 5a06fc050c72cc1155f996e5ce2528f0a35d02339e3f507721bb41682730f95b
SHA3-384 hash: 35c887d00a72d9a4b50b3cb69213f9578f8f4c97f4afbf47ae2b391ce0a266ec50721ec5ed198875ea00e0510b0c9fbf
SHA1 hash: e60a0bcf30dd87ddf079f9dc5dc2773358f43fa5
MD5 hash: 41bb874f7fcd9f510c2f732550ebc21e
humanhash: apart-vermont-floor-apart
File name:41bb874f7fcd9f510c2f732550ebc21e
Download: download sample
Signature QuasarRAT
File size:649'216 bytes
First seen:2021-06-25 00:04:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:NTEgdfYnxUnmYMJ4xywrNp55abowcdgGkW:uUw0UkywrNpTUVcdgGkW
Threatray 64 similar samples on MalwareBazaar
TLSH 72D4F5815FEFC9DBD16F237FA465081256FEE3065257E7CA8B01A9B4BA853138D402E3
Reporter zbetcheckin
Tags:32 exe QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
41bb874f7fcd9f510c2f732550ebc21e
Verdict:
No threats detected
Analysis date:
2021-06-25 00:06:29 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 440250 Sample: yxuAAagyND Startdate: 25/06/2021 Architecture: WINDOWS Score: 100 31 fit.microgent.ru 2->31 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 5 other signatures 2->49 9 yxuAAagyND.exe 5 2->9         started        13 yxuAAagyND.exe 2 2->13         started        signatures3 process4 file5 27 C:\Windows\System3227VIDIA\nvcontainer.exe, PE32 9->27 dropped 29 C:\Users\user\AppData\...\yxuAAagyND.exe.log, ASCII 9->29 dropped 51 Drops executables to the windows directory (C:\Windows) and starts them 9->51 53 Uses schtasks.exe or at.exe to add and modify task schedules 9->53 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->55 15 nvcontainer.exe 2 9->15         started        19 schtasks.exe 1 9->19         started        signatures6 process7 dnsIp8 33 fit.microgent.ru 195.133.40.220, 49722, 49723, 49724 SPD-NETTR Russian Federation 15->33 35 Antivirus detection for dropped file 15->35 37 Multi AV Scanner detection for dropped file 15->37 39 Machine Learning detection for dropped file 15->39 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->41 21 schtasks.exe 1 15->21         started        23 conhost.exe 19->23         started        signatures9 process10 process11 25 conhost.exe 21->25         started       
Threat name:
ByteCode-MSIL.Trojan.Quasar
Status:
Malicious
First seen:
2021-06-25 00:04:21 UTC
AV detection:
32 of 46 (69.57%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:nvdia spyware trojan
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Executes dropped EXE
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
fit.microgent.ru:6667
Unpacked files
SH256 hash:
5a06fc050c72cc1155f996e5ce2528f0a35d02339e3f507721bb41682730f95b
MD5 hash:
41bb874f7fcd9f510c2f732550ebc21e
SHA1 hash:
e60a0bcf30dd87ddf079f9dc5dc2773358f43fa5
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: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:Glasses
Author:Seth Hardy
Description:Glasses family
Rule name:GlassesCode
Author:Seth Hardy
Description:Glasses code features
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_QuasarStealer
Author:ditekshen
Description:Detects Quasar infostealer
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:pe_imphash
Rule name:Select_from_enumeration
Author:James_inthe_box
Description:IP and port combo
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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/

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

QuasarRAT

Executable exe 5a06fc050c72cc1155f996e5ce2528f0a35d02339e3f507721bb41682730f95b

(this sample)

  
Delivery method
Distributed via web download

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