MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49a3a414ff31030593bd744da620e60bac8cef1b8e04ad988bc7badd95e76595. 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 1 File information Comments
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SHA256 hash: 49a3a414ff31030593bd744da620e60bac8cef1b8e04ad988bc7badd95e76595
SHA3-384 hash: 8212c107302835f1f673e0480492bc78991b7ea2356a000fe6b8bf67788f28e9af1d02f2f66eb572e11876d736e8dc92
SHA1 hash: 719dfce1128f910218cbb3783481cb1344e4e684
MD5 hash: 214fd4e9b539277171a79fb0201fffa2
humanhash: montana-london-johnny-oven
File name:558.ps1
Download: download sample
Signature QuasarRAT
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File size:1'514 bytes
First seen:2022-12-09 05:08:57 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 24:dhEmBKC2auORjr9tPmBKC2mqjujsWMcOjs6s4JsZUns:drB3dHmB3UeUs
TLSH T10531F08AE3089FEE824045EC39032CDD6269824A3A07C2754BCFB416CCCF8927D89663
Reporter ankit_anubhav
Tags:ps1 QuasarRAT TA558

Intelligence

File Origin
# of uploads :
1
# of downloads :
203
Origin country :
TH TH
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.PwrSh.Dropper-A.20687.495.UNOFFICIAL
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Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6392c2ef9a505ad9423e535d/reports/76920d60-8211-42fd-a054-f30e047773af/overview
Result
Verdict:
UNKNOWN
Result
Threat name:
Clipboard Hijacker, Quasar
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1131212
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Clipboard Hijacker
Yara detected Generic Downloader
Yara detected Quasar RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/49a3a414ff31030593bd744da620e60bac8cef1b8e04ad988bc7badd95e76595/
Threat name:
Script-PowerShell.Trojan.Heuristic
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Status:
Malicious
First seen:
2022-12-09 05:09:07 UTC
File Type:
Text (PowerShell)
AV detection:
5 of 26 (19.23%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jgr2ifh7gebqle55org2mihgbowiz3y3ryck3gely65n3fphmwkq._file
Result
Malware family:
quasar
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Score:
  10/10
Tags:
family:quasar botnet:j4s0n spyware trojan
Link:
https://tria.ge/reports/221209-fs5f2afc9y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Blocklisted process makes network request
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
52.187.50.165:5552
Malware family:
QuasarRAT
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/49a3a414ff31/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/49a3a414ff31030593bd744da620e60bac8cef1b8e04ad988bc7badd95e76595

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_PowerShell_Base64_Decode
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Author:SECUINFRA Falcon Team
Description:Detects PowerShell code to decode Base64 data. This can yield many FP

File information

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

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