🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9e42c9b206789a24fdf3655af190d1612a1d5a38171cacddbc4fb475d4b56efc. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9e42c9b206789a24fdf3655af190d1612a1d5a38171cacddbc4fb475d4b56efc
SHA3-384 hash: 6fdff576840f24ec604eb245c7666731b67821deaa3cc4c1e7e27f400b9f3c0eed4ed703b985deae97e2935e605e434c
SHA1 hash: db9529225047049ba625cd333675cd32343f7f5b
MD5 hash: 9e2d09f47cc48dd3e84205376a8f9ecb
humanhash: island-timing-dakota-september
File name:runrunlastrun.vbs
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'942 bytes
First seen:2023-05-18 10:03:38 UTC
Last seen:2023-05-18 14:19:05 UTC
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 24:1n1WibHAvio4kBkmZoPHmEdqeA50ikCeQxHecoVRRfVPH/UVUMhFEOxWCQjTPiyT:NiZteol5oszFpQZdzFeMcmCB9dFL7rXS
Threatray 486 similar samples on MalwareBazaar
TLSH T173416416BE02CBA46207D6964DF7D848E7194179791863363FD9C8980E10BB08EBA2C5
Reporter 1ZRR4H
Tags:QuasarRAT vbs

Intelligence

File Origin
# of uploads :
2
# of downloads :
149
Origin country :
ES ES
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6465f8132fe8bc4707aa1247/reports/82bade25-6628-4ce5-af0f-708b4b81c03c/overview
Verdict:
Malicious
Labled as:
Dropper.Trojan.Agent
Link:
https://www.hybrid-analysis.com/sample/9e42c9b206789a24fdf3655af190d1612a1d5a38171cacddbc4fb475d4b56efc
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1235836
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Benign windows process drops PE files
Bypasses PowerShell execution policy
Creates processes via WMI
Hides that the sample has been downloaded from the Internet (zone.identifier)
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Powershell connects to network
Sigma detected: Dot net compiler compiles file from suspicious location
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
VBScript performs obfuscated calls to suspicious functions
Windows Shell Script Host drops VBS files
Wscript called in batch mode (surpress errors)
Wscript starts Powershell (via cmd or directly)
Yara detected Generic Downloader
Yara detected Powershell download and execute
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 868829 Sample: runrunlastrun.vbs Startdate: 18/05/2023 Architecture: WINDOWS Score: 100 60 Snort IDS alert for network traffic 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Antivirus detection for URL or domain 2->64 66 7 other signatures 2->66 8 wscript.exe 6 2->8         started        12 wscript.exe 1 2->12         started        14 wscript.exe 1 2->14         started        process3 file4 40 C:\ProgramData\...\wscript.exe, PE32 8->40 dropped 42 C:\ProgramData\...\powershell.exe, PE32 8->42 dropped 44 C:\ProgramData\...\winappversion.ini, ASCII 8->44 dropped 46 2 other malicious files 8->46 dropped 76 Benign windows process drops PE files 8->76 78 VBScript performs obfuscated calls to suspicious functions 8->78 80 Wscript starts Powershell (via cmd or directly) 8->80 84 2 other signatures 8->84 82 Bypasses PowerShell execution policy 12->82 16 powershell.exe 15 22 12->16         started        21 cmd.exe 1 14->21         started        signatures5 process6 dnsIp7 50 googlehosted.l.googleusercontent.com 142.251.37.1, 443, 49699, 49701 GOOGLEUS United States 16->50 52 drive.google.com 172.217.16.174, 443, 49698, 49700 GOOGLEUS United States 16->52 54 2 other IPs or domains 16->54 38 C:\Users\user\AppData\...\fkw4sfcu.cmdline, Unicode 16->38 dropped 68 Powershell connects to network 16->68 23 CasPol.exe 14 6 16->23         started        27 csc.exe 3 16->27         started        30 conhost.exe 16->30         started        70 Uses schtasks.exe or at.exe to add and modify task schedules 21->70 32 conhost.exe 21->32         started        34 schtasks.exe 1 21->34         started        file8 signatures9 process10 dnsIp11 56 ip-api.com 208.95.112.1, 49702, 80 TUT-ASUS United States 23->56 58 121.159.90.178, 2158, 49703, 49704 KIXS-AS-KRKoreaTelecomKR Korea Republic of 23->58 72 May check the online IP address of the machine 23->72 74 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->74 48 C:\Users\user\AppData\Local\...\fkw4sfcu.dll, PE32 27->48 dropped 36 cvtres.exe 1 27->36         started        file12 signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9e42c9b206789a24fdf3655af190d1612a1d5a38171cacddbc4fb475d4b56efc/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-05-18 10:04:06 UTC
File Type:
Text (VBS)
AV detection:
5 of 24 (20.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tzbmtmqgpcncj7ptmvnpdegrmevb2wryc4okzxn4j62hlvfvn36a._file
Verdict:
malicious
Similar samples:
4d9f9ebfea637dfcd6415af650b54f8930d38c3b93192164cddd59e64ce86e74
QuasarRAT
4fafe7319dc4a4277a09863f72cbd14328e1607cdee608bc9f65945ec8055848
QuasarRAT
57ba6e0a9c0804c9a3d239dc6fb2a6742f3a91b762741772dd3571e1cbec45f8
QuasarRAT
5c395df95b067f10c115f92e193d7f61bc6ce05eefb20bfc86aac86f278e0600
QuasarRAT
7431f9ba6aec04eac9673c804378df129f167a06927649ec7aca9872fb15f14b
QuasarRAT
a98fb020ed1b1b79495423933331d152b65d0db7947e403bdebe41f999540e6d
QuasarRAT
b6e510ac38643fbc455d38144a8ab0990056379c596c5728987d062fa3a64efc
QuasarRAT
f2833315c599f86d9a2f1d020ae68f39329c8b43401b8e03eecca32c5bf014ea
QuasarRAT
+ 476 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/230518-l3xrtsad27/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Checks computer location settings
Process spawned unexpected child process
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9e42c9b20678/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/9e42c9b206789a24fdf3655af190d1612a1d5a38171cacddbc4fb475d4b56efc

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:SUSP_OneNote
Create hunting rule
Author:spatronn
Description:Hard-Detect One
Rule name:SUSP_Websites
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the reference of suspicious sites that might be used to download further malware
Rule name:yara_template
Create hunting rule

File information

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

Comments