MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fb5f0e2123fbe2fef75b8f8c735aa441c718c2caf3c5ee4384f5a33fef5c687. 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: 15


Intelligence 15 IOCs YARA 20 File information Comments 1
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SHA256 hash: 3fb5f0e2123fbe2fef75b8f8c735aa441c718c2caf3c5ee4384f5a33fef5c687
SHA3-384 hash: 429e931a04e1744ced8e4bb6e50fad6e553bc0b9cf3d58c271a09ff0054f8d9b327bf538f12e6a0bea31687b6dd83411
SHA1 hash: 3cfc47cacb7889c891f192e7af4d70810c4abe58
MD5 hash: 4ae820a3681163b29970978a8ae794c2
humanhash: ceiling-single-two-glucose
File name:4ae820a3681163b29970978a8ae794c2
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:850'432 bytes
First seen:2023-01-27 17:12:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'477 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:QPOQBmshv/s7coSQtADGw1oz63eE2Z0D+3Nnr:YOQBmunnoSQ+6wO6OErCV
Threatray 458 similar samples on MalwareBazaar
TLSH T1600523907E4C72D6FF0D5A3C5FD6C5428B256BB9932EA5B7790A04383B283D4B9046B3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon f0b86c3028e9b8f0 (2 x QuasarRAT, 1 x Loki)
Reporter zbetcheckin
Tags:32 exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
4ae820a3681163b29970978a8ae794c2
Verdict:
Malicious activity
Analysis date:
2023-01-27 17:14:27 UTC
Tags:
evasion trojan quasar
Link:
https://app.any.run/tasks/d5a7a570-ab83-46f0-9db4-97c916618d9c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/357571/
Detection(s):
PUA.Win.Packed.ConfuserEx-6582917-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
confuserex packed quasar quasarrat
Link:
https://www.filescan.io/uploads/63d4061f447edb203a017ade/reports/a647971b-cb75-4a53-8ff9-86d83d5e1387/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3ffb7681-9333-48d8-9990-7a6eaf5b89ca
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1160453
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 793189 Sample: jwlIVLR3d6.exe Startdate: 27/01/2023 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic 2->56 58 Multi AV Scanner detection for domain / URL 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 8 other signatures 2->62 10 jwlIVLR3d6.exe 1 2->10         started        14 jwlIVLR3d6.exe 2->14         started        process3 file4 44 C:\Users\user\AppData\...\jwlIVLR3d6.exe.log, ASCII 10->44 dropped 74 May check the online IP address of the machine 10->74 76 Uses schtasks.exe or at.exe to add and modify task schedules 10->76 78 Injects a PE file into a foreign processes 10->78 16 jwlIVLR3d6.exe 15 4 10->16         started        21 jwlIVLR3d6.exe 14->21         started        23 backgroundTaskHost.exe 1 14->23         started        signatures5 process6 dnsIp7 46 ip-api.com 208.95.112.1, 49696, 49697, 80 TUT-ASUS United States 16->46 42 C:\Users\user\AppData\Roaming\cji\hvi.exe, PE32 16->42 dropped 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->64 25 hvi.exe 1 16->25         started        28 schtasks.exe 1 16->28         started        30 WerFault.exe 21->30         started        file8 signatures9 process10 signatures11 66 Multi AV Scanner detection for dropped file 25->66 68 May check the online IP address of the machine 25->68 70 Machine Learning detection for dropped file 25->70 72 Injects a PE file into a foreign processes 25->72 32 hvi.exe 14 2 25->32         started        36 conhost.exe 28->36         started        process12 dnsIp13 48 dnuocc.com 195.133.40.200, 49698, 49699, 49700 SPD-NETTR Russian Federation 32->48 50 www.dnuocc.com 32->50 52 ip-api.com 32->52 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->54 38 schtasks.exe 1 32->38         started        signatures14 process15 process16 40 conhost.exe 38->40         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3fb5f0e2123fbe2fef75b8f8c735aa441c718c2caf3c5ee4384f5a33fef5c687/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2023-01-27 17:13:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h627byqsh67c733vxd4monnkiqohddbmv46f5zbyj5ndh7xvy2dq._file
Verdict:
malicious
Similar samples:
0579f660e3087207714180f271bd21e9ecaea4e7103e1a140ebadf378473416f
QuasarRAT
100f14bd43501076a1b9dc89bdbc702aadbe65054c05e4bdf9ad8f0000d1c699
QuasarRAT
126a6947bb766d06e7f1eb176b6fa573e72c72dd0f705a99df1e335b7839b134
QuasarRAT
52807927efca34144cfa56a3868a913858fa0fc74aeb0b370964688ec49f1312
QuasarRAT
5b507cc8ae7d2edc65f3c23cd89742d28c054eeea1a415dfe3f9ba9a427f33fc
QuasarRAT
b9d9a182e7f6f1afaf0f5058def2ca3e4e65f71a387c228c0a098b6c41b6d319
QuasarRAT
e1993021c0575594ff63f2685d56f1e80c60d6fc67e5e86ff1c5ef7b25f773d5
QuasarRAT
f29d669285f859b0ad90269aa5338bbad96e32369d02f9b8586ac5ede04cf9ce
QuasarRAT
+ 448 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:owl2 spyware trojan
Link:
https://tria.ge/reports/230127-vrdz1scc54/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
dnuocc.com:64594
www.dnuocc.com:64594
dnuocc.com:64588
Unpacked files
SH256 hash:
fdb7865b933ca403988dfa5e9b5bc1a7b119d4ba015f984799f2ab9c9c05fe41
MD5 hash:
3ceb8483c59c15269da3fa43af0bc23b
SHA1 hash:
08061538e850699c04d405a2f038d3d532d17f69
Link:
https://www.unpac.me/results/306d9261-d1ae-43ab-aca1-3e25711b18ca/
SH256 hash:
3fb5f0e2123fbe2fef75b8f8c735aa441c718c2caf3c5ee4384f5a33fef5c687
MD5 hash:
4ae820a3681163b29970978a8ae794c2
SHA1 hash:
3cfc47cacb7889c891f192e7af4d70810c4abe58
Link:
https://www.unpac.me/results/306d9261-d1ae-43ab-aca1-3e25711b18ca/
Malware family:
xRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3fb5f0e2123f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/3fb5f0e2123fbe2fef75b8f8c735aa441c718c2caf3c5ee4384f5a33fef5c687

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_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
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_Quasar_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
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_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:Windows_Trojan_Quasarrat_e52df647
Create hunting rule
Author:Elastic Security
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.

Web download

QuasarRAT

Executable exe 3fb5f0e2123fbe2fef75b8f8c735aa441c718c2caf3c5ee4384f5a33fef5c687

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2520069/
Cape
Cape
https://www.capesandbox.com/analysis/357571/
  
URLhaus
https://urlhaus.abuse.ch/url/2520394/

Comments


Avatar
zbet commented on 2023-01-27 17:13:01 UTC

url : hxxps://www.js-hurling.com/webcpcontent/webcontenthdt.exe