MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5c395df95b067f10c115f92e193d7f61bc6ce05eefb20bfc86aac86f278e0600. 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


Intelligence 10 IOCs YARA 17 File information Comments
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SHA256 hash: 5c395df95b067f10c115f92e193d7f61bc6ce05eefb20bfc86aac86f278e0600
SHA3-384 hash: e5d47fae86614cff5d6bfc106e56b4c3ab93311dce849a9533ca4fcccf4f81fc3678d0fd570f1bdc4ae62d6b04a910df
SHA1 hash: 35c7cb4272dd30c97711284673b60e9bf8aa105e
MD5 hash: 010eb448243fbab8334a1c528ec2e356
humanhash: whiskey-echo-shade-ceiling
File name:21542452100045.vbs
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'030 bytes
First seen:2021-10-17 06:42:25 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 24:n9EI5rdsvF3zdh2x/vAUg/5FmqiDgU0a8lBJeQvh:7L5AUgRFmSU4BMQvh
Threatray 250 similar samples on MalwareBazaar
TLSH T19711B2B6085993382F46B5EB5476DDFF425292661060AD0EAF40ACCC8F44B6E2F514FE
Reporter abuse_ch
Tags:QuasarRAT RAT vbs


Avatar
abuse_ch
QuasarRAT payload URL:
https://sxom.000webhostapp.com/VDO.html

QuasarRAT C2:
3.36.121.136:4782

Intelligence

File Origin
# of uploads :
1
# of downloads :
353
Origin country :
n/a
Vendor Threat Intelligence
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/197928/
Detection(s):
SecuriteInfo.com.Script.SNH-genTrj.26644.13838.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed powershell powershell
Link:
https://www.filescan.io/uploads/616bcbeea9d585e6d52b19fa/reports/88579d8d-09b9-460e-82b1-9ff83e9fa417/overview
Result
Verdict:
UNKNOWN
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/871717
Signature
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
Drops VBS files to the startup folder
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Powershell drops PE file
Sigma detected: Drops script at startup location
VBScript performs obfuscated calls to suspicious functions
Windows Shell Script Host drops VBS files
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell download and execute
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 504145 Sample: 21542452100045.vbs Startdate: 17/10/2021 Architecture: WINDOWS Score: 100 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Yara detected Powershell download and execute 2->56 58 4 other signatures 2->58 7 wscript.exe 8 2->7         started        11 wscript.exe 6 2->11         started        process3 file4 32 C:\Users\user\AppData\Roaming\...\LLA.vbs, ASCII 7->32 dropped 66 VBScript performs obfuscated calls to suspicious functions 7->66 68 Wscript starts Powershell (via cmd or directly) 7->68 70 Windows Shell Script Host drops VBS files 7->70 72 Drops VBS files to the startup folder 7->72 13 powershell.exe 14 16 7->13         started        18 powershell.exe 16 11->18         started        signatures5 process6 dnsIp7 44 us-east-1.route-1.000webhost.awex.io 145.14.144.39, 443, 49759 AWEXUS Netherlands 13->44 46 sxom.000webhostapp.com 13->46 34 PowerShell_transcr....20211017084405.txt, UTF-8 13->34 dropped 74 Writes to foreign memory regions 13->74 76 Injects a PE file into a foreign processes 13->76 78 Powershell drops PE file 13->78 20 CasPol.exe 15 6 13->20         started        24 conhost.exe 13->24         started        48 145.14.144.174, 443, 49781 AWEXUS Netherlands 18->48 50 sxom.000webhostapp.com 18->50 36 C:\Users\Public\Documents\VDO.html, PE32 18->36 dropped 38 PowerShell_transcr....20211017084436.txt, UTF-8 18->38 dropped 26 CasPol.exe 5 18->26         started        28 conhost.exe 18->28         started        30 CasPol.exe 18->30         started        file8 signatures9 process10 dnsIp11 40 3.36.121.136, 4782, 49770, 49771 AMAZONEXPANSIONGB United States 20->40 42 ip-api.com 208.95.112.1, 49769, 80 TUT-ASUS United States 20->42 60 May check the online IP address of the machine 20->60 62 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->62 64 Installs a global keyboard hook 20->64 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5c395df95b067f10c115f92e193d7f61bc6ce05eefb20bfc86aac86f278e0600/
Threat name:
Script-WScript.Trojan.Alien
Create hunting rule
Status:
Malicious
First seen:
2021-10-17 06:43:03 UTC
AV detection:
8 of 45 (17.78%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lq4v36k3az7rbqiv7exbspl7mg6gzyc656zax7egvleg6j4oayaa._file
Verdict:
malicious
Similar samples:
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QuasarRAT
0294e192621b21d5c8f2288496930fe5e947fd66cdff1a119ca2f8bbdd8a537e
QuasarRAT
0eaa5bbea25ef06214bc21deab41eb7f5bdcdd4c24b0297a28607d30edf65ae1
QuasarRAT
7431f9ba6aec04eac9673c804378df129f167a06927649ec7aca9872fb15f14b
QuasarRAT
99a6c8e156dba4fda6e2b6ca0802cc08d49556b489e97618e565768329521413
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a98fb020ed1b1b79495423933331d152b65d0db7947e403bdebe41f999540e6d
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b6e510ac38643fbc455d38144a8ab0990056379c596c5728987d062fa3a64efc
QuasarRAT
c2f70806a9fddb3ff61f045c92c48a19a0f889b839f68a2acd0e71e6c091499c
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d478602bac8b8f334f06644dd92fbe60cbba6815ced96503c7aab4df6f305e77
QuasarRAT
+ 240 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:8 spyware trojan
Link:
https://tria.ge/reports/211017-hgxcdscdf4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Blocklisted process makes network request
Downloads MZ/PE file
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
3.36.121.136:4782
Malware family:
Quasar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/5c395df95b06/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5c395df95b067f10c115f92e193d7f61bc6ce05eefb20bfc86aac86f278e0600

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
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:CN_disclosed_20180208_KeyLogger_1_RID3227
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:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MALWARE_Win_QuasarRAT
Create hunting rule
Author:ditekSHen
Description:QuasarRAT payload
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:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:pe_imphash
Create hunting rule
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:Quasar_RAT_1_RID2B54
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:Quasar_RAT_2
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:Quasar_RAT_2_RID2B55
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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/
Rule name:xRAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W
Rule name:xRAT_1_RID2900
Create hunting rule
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

QuasarRAT

Visual Basic Script (vbs) vbs 5c395df95b067f10c115f92e193d7f61bc6ce05eefb20bfc86aac86f278e0600

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1687216/
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/197928/

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