MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7c309d0854288645b6bd91fdfc4ccfe0446c60dfd2548a1bfebdead096de4be1. 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: 6


Intelligence 6 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7c309d0854288645b6bd91fdfc4ccfe0446c60dfd2548a1bfebdead096de4be1
SHA3-384 hash: 061bcd9393422bc9e04f952e0e15c8b7595eec4d16e7b1d27f9d2f89d37332168437759f7fe9fb9de05dfbd2329dd4a5
SHA1 hash: 7669ac7a72dc2e3d87f6858bbbab289d21f4fac5
MD5 hash: 70dd4f4fd18ba7bc8c6c0ee777c86f04
humanhash: iowa-wisconsin-magnesium-nine
File name:da364ff6c593f4783eb3087166d45ca2
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:547'328 bytes
First seen:2020-11-17 15:54:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'653 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 6144:mK9K2Lg0KTGi0Dn2whGfb3OIV1gelKeV4ptBoFd/CbPffXb43Y9GeUC4jPY8jQ:m32LTDnre0MrqbXfoYce5EQoQ
Threatray 18 similar samples on MalwareBazaar
TLSH 14C46C1227E8C62FE17E6772E4F004259BF4E10AF666DB5F098469F81C62B45AD013BF
Reporter seifreed
Tags:QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Tool.Quasar-6791498-0
Create hunting rule

Win.Packed.Downeks-6898097-0
Create hunting rule

Win.Packed.Passwordstealera-9792228-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Creating a file in the %temp% directory
Setting a keyboard event handler
Running batch commands
Creating a process with a hidden window
Creating a window
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/543552
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 320872 Sample: da364ff6c593f4783eb3087166d45ca2 Startdate: 20/11/2020 Architecture: WINDOWS Score: 100 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus / Scanner detection for submitted sample 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 7 other signatures 2->65 8 da364ff6c593f4783eb3087166d45ca2.exe 15 5 2->8         started        13 da364ff6c593f4783eb3087166d45ca2.exe 2 2->13         started        process3 dnsIp4 45 ip-api.com 208.95.112.1, 49736, 49742, 80 TUT-ASUS United States 8->45 41 C:\Users\user\AppData\...\MSSQLSRV.exe, PE32 8->41 dropped 43 da364ff6c593f4783eb3087166d45ca2.exe.log, ASCII 8->43 dropped 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->69 15 MSSQLSRV.exe 14 6 8->15         started        19 schtasks.exe 1 8->19         started        file5 signatures6 process7 dnsIp8 49 ip-api.com 15->49 51 Antivirus detection for dropped file 15->51 53 Multi AV Scanner detection for dropped file 15->53 55 Machine Learning detection for dropped file 15->55 57 2 other signatures 15->57 21 cmd.exe 1 15->21         started        24 schtasks.exe 1 15->24         started        26 WerFault.exe 23 9 15->26         started        28 conhost.exe 19->28         started        signatures9 process10 signatures11 67 Uses ping.exe to sleep 21->67 30 PING.EXE 21->30         started        33 conhost.exe 21->33         started        35 chcp.com 1 21->35         started        37 MSSQLSRV.exe 21->37         started        39 conhost.exe 24->39         started        process12 dnsIp13 47 192.168.2.1 unknown unknown 30->47
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7c309d0854288645b6bd91fdfc4ccfe0446c60dfd2548a1bfebdead096de4be1/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2020-11-17 16:04:19 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pqyj2ccufcdelnv5sh67ytgp4bcgyyg72jkiug76xxvnbfw6jpqq._file
Verdict:
suspicious
Similar samples:
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QuasarRAT
28781eb82584acf1dcfc5fb193e27152c5a57bed3a0c249f490759b5c1e84b9b
QuasarRAT
3a83d1211c8a9235a72f0dcea5c36ec53a99ed83340e35097e7f41773bc8fb3f
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48d3e4804c326bea85228d97194d5b803b1226e892219328904e2c788b149e27
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585e4146923404bbe11c2cf5a423e2650a5d133541e9baeacb64a4d675f6484d
QuasarRAT
95cc530b09ac9303c73e4c781d90bde4d57121f8c037889e303c363c898310e5
QuasarRAT
9760105f3177384c19086dee036cdc67916d744f4a1e7064ecfd906e252dba69
QuasarRAT
a62e4e1d21bdc64eea17d8bbc4ab5e6c48dc57abbb470322c3357abdef15341f
QuasarRAT
efcf11b8408b3caf79f2aa775890f6708f115524a9be648d4324b44551078473
QuasarRAT
f0fafa9e7eea1e45981257151dd56207ac78ae6110bc39da004bd468bcbb79b4
QuasarRAT
+ 8 additional samples on MalwareBazaar
Unpacked files
SH256 hash:
7c309d0854288645b6bd91fdfc4ccfe0446c60dfd2548a1bfebdead096de4be1
MD5 hash:
70dd4f4fd18ba7bc8c6c0ee777c86f04
SHA1 hash:
7669ac7a72dc2e3d87f6858bbbab289d21f4fac5
Link:
https://www.unpac.me/results/dd565f2a-7965-49b1-a168-ac92119945ef/
SH256 hash:
6c8ce74d8fb1253e6e2de1d2cafe3581ee169553fe53ba89f2c789fd9338479a
MD5 hash:
b944aca4a7c04561be324c94b38c9d6e
SHA1 hash:
54e159331327f841a84b93d6b527617b2dbd15e7
Link:
https://www.unpac.me/results/dd565f2a-7965-49b1-a168-ac92119945ef/
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
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:CN_disclosed_20180208_KeyLogger_1
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MSILStealer
Create hunting rule
Author:https://github.com/hwvs
Description:Detects strings from C#/VB Stealers and QuasarRat
Reference:https://github.com/quasar/QuasarRAT
Rule name:Quasar
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:Quasar_RAT_1
Create hunting rule
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
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
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.

  
Delivery method
Other

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