MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 01526b381acd09438b74ca04eacf96cdc8f8fdafb36e85be9a099223db630f72. 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


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: 01526b381acd09438b74ca04eacf96cdc8f8fdafb36e85be9a099223db630f72
SHA3-384 hash: 5adbabf49abbece4d3e06f30b1bce9959419b7afb8457e5c68f6260dcbc1679e5dc59d185b221c88c18732abf49d93dd
SHA1 hash: b6b2113065c65771f8bd45a5c356f902fdf3fda9
MD5 hash: cb7597b3fbada55fba7e39a7dcfc76f6
humanhash: nitrogen-freddie-mars-uniform
File name:36458565.vbs
Download: download sample
Signature QuasarRAT
File size:1'991 bytes
First seen:2021-10-03 12:28:41 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 48:P3SSSSpZt4kSSSSuLSSSSSS5HAUrSSSSIFSSSF9G3SSSSwF0SSSSTl1SSSSiSSS6:fSSSSzHSSSSuLSSSSSS55rSSSSIFSSSz
Threatray 236 similar samples on MalwareBazaar
TLSH T15D41396D1C0CE9E82A994D8348B3C84D8ED56DC6B930EDA59ACDDC89B13431D0E40C2B
Reporter abuse_ch
Tags:QuasarRAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
268
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed powershell powershell
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: Drops script at startup location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 495843 Sample: 36458565.vbs Startdate: 03/10/2021 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 6 other signatures 2->52 7 wscript.exe 8 2->7         started        11 wscript.exe 6 2->11         started        process3 file4 32 C:\Users\user\AppData\Roaming\...\Cnr.vbs, ASCII 7->32 dropped 62 VBScript performs obfuscated calls to suspicious functions 7->62 64 Wscript starts Powershell (via cmd or directly) 7->64 66 Windows Shell Script Host drops VBS files 7->66 68 Drops VBS files to the startup folder 7->68 13 powershell.exe 14 18 7->13         started        18 powershell.exe 16 11->18         started        signatures5 process6 dnsIp7 44 cordonhome.com 68.183.64.60, 49746, 49769, 80 DIGITALOCEAN-ASNUS United States 13->44 34 PowerShell_transcr....20211003143011.txt, UTF-8 13->34 dropped 70 Writes to foreign memory regions 13->70 72 Injects a PE file into a foreign processes 13->72 74 Powershell drops PE file 13->74 20 CasPol.exe 15 6 13->20         started        24 CasPol.exe 13->24         started        26 conhost.exe 13->26         started        36 C:\Users\Public\Documents\BGOZA.html, PE32 18->36 dropped 38 PowerShell_transcr....20211003143038.txt, UTF-8 18->38 dropped 28 CasPol.exe 5 18->28         started        30 conhost.exe 18->30         started        file8 signatures9 process10 dnsIp11 40 3.36.121.136, 4782, 49761 AMAZONEXPANSIONGB United States 20->40 42 ip-api.com 208.95.112.1, 49760, 80 TUT-ASUS United States 20->42 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->54 56 Installs a global keyboard hook 20->56 58 May check the online IP address of the machine 24->58 60 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 24->60 signatures12
Threat name:
Script-WScript.Trojan.Alien
Status:
Malicious
First seen:
2021-10-03 12:29:19 UTC
AV detection:
3 of 45 (6.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:8 spyware suricata trojan
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
suricata: ET MALWARE Possible Windows executable sent when remote host claims to send html content
Malware Config
C2 Extraction:
3.36.121.136:4782
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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 01526b381acd09438b74ca04eacf96cdc8f8fdafb36e85be9a099223db630f72

(this sample)

  
Delivery method
Distributed via e-mail attachment

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