MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a323a9891c15a533b2356c710a9610dcd764931b2122404d1278952d6a2611e1. 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: 11


Intelligence 11 IOCs YARA 12 File information Comments

SHA256 hash: a323a9891c15a533b2356c710a9610dcd764931b2122404d1278952d6a2611e1
SHA3-384 hash: a784838486b69be5100980f03c3e1054976c2107f6bc1c7badf3d84e71648d5fca3debae9b5ca6fbe60ca988e53d7761
SHA1 hash: efadf32a52f1b6bfde9ab82bd4ac5cd1598d8a8f
MD5 hash: 0fb77a7f91ccadcee16b1f264b0a53df
humanhash: enemy-skylark-double-jupiter
File name:a323a9891c15a533b2356c710a9610dcd764931b2122404d1278952d6a2611e1
Download: download sample
Signature QuasarRAT
File size:1'092'608 bytes
First seen:2021-08-30 06:19:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:kARNJ6j3LBFsSfNJwZH3Uw2oQb+9BXNwQlsljyFVRelCuXjV+apo+gO0aoUWqnDi:bLJ+FFsSFJg9LuuqnDonB1
Threatray 210 similar samples on MalwareBazaar
TLSH T1C63588242DEF202AB373AE7DDBE4759AD95EB6A32707585D106203C60713D82DDC2A3D
Reporter JAMESWT_WT
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Launching a process
Creating a window
Sending a UDP request
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Quasar
Status:
Malicious
First seen:
2021-08-25 23:53:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
27 of 46 (58.70%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
10.8.31.138:28394
Unpacked files
SH256 hash:
13a093e9bc1df2130c9f6573812fb723531aaabe2395c0d6c3d312830eee12f2
MD5 hash:
f501899878d8cdfe58994ee8bcbb39dd
SHA1 hash:
a5b56be7ea643092e339d51d23a1337b9f6c367b
SH256 hash:
691fb82c3f78a49086c6f61747195cde07448d2c03cc91b1889b407c50183c98
MD5 hash:
0f2c0e9e783f4f06a09e4e65653aa950
SHA1 hash:
55f721bdd5cc1614771e339b1a9d4829e8fb5908
SH256 hash:
a323a9891c15a533b2356c710a9610dcd764931b2122404d1278952d6a2611e1
MD5 hash:
0fb77a7f91ccadcee16b1f264b0a53df
SHA1 hash:
efadf32a52f1b6bfde9ab82bd4ac5cd1598d8a8f
Malware family:
QuasarRAT
Verdict:
Malicious
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:CN_disclosed_20180208_KeyLogger_1
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_GENInfoStealer
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MALWARE_Win_QuasarRAT
Author:ditekSHen
Description:QuasarRAT payload
Rule name:MAL_QuasarRAT_May19_1
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Quasar
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:Quasar_RAT_1
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
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
Author:Skystars LightDefender
Description:imphash
Rule name:Vermin_Keylogger_Jan18_1
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
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.

Comments