MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66436b011443b69675fa038efcf199781656c8fbf768b6989d7cfcd53ab487d2. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66436b011443b69675fa038efcf199781656c8fbf768b6989d7cfcd53ab487d2
SHA3-384 hash: 87410d09097024064ce0c1e7f704d4622557d0e6ae217324eb4836e8afceb7bc275c772673a49284af5682d6b3a9abd2
SHA1 hash: 5311c46b4ca0900b349dbf42434016f99eef893d
MD5 hash: d28d15d73793b9630f91b3b4041af46c
humanhash: east-video-seven-beer
File name:d28d15d73793b9630f91b3b4041af46c
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:11'504'032 bytes
First seen:2024-04-22 22:47:47 UTC
Last seen:2024-04-22 23:21:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 24576:bFuUZ1gntEpygD7Bph0I2r60fj0YhyADmzPQ+0AW9CAW0LKd:bs61q1ml0I2rJ0Y0ADmzj0Ay2d
TLSH T16AC622447B838C6FFD695A36D0D6B0F401FC8E93B2FAA16FEF595C8524829BC1641A70
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter zbetcheckin
Tags:64 exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
466
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
66436b011443b69675fa038efcf199781656c8fbf768b6989d7cfcd53ab487d2.exe
Verdict:
Malicious activity
Analysis date:
2024-04-23 04:27:03 UTC
Tags:
pureloader purecrypter opendir rat quasar remote asyncrat loader pureminer zgrat
Link:
https://app.any.run/tasks/9ee71f35-64b3-44e9-b6d8-b4d14e631df3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Creating a window
Sending a custom TCP request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Blocking the User Account Control
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay
Link:
https://www.filescan.io/uploads/6626e923d2fc149e4119243f/reports/28a01398-b97e-49bb-bde1-731fc64fc893/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/66436b011443b69675fa038efcf199781656c8fbf768b6989d7cfcd53ab487d2
Result
Verdict:
MALICIOUS
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/ff37a215-dba4-465f-8509-60824c7b38cd
Result
Threat name:
PureLog Stealer, Xmrig, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1429991
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Connects to many ports of the same IP (likely port scanning)
Detected Stratum mining protocol
Disables UAC (registry)
Drops PE files with benign system names
Found strings related to Crypto-Mining
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Schedule system process
Sigma detected: Suspect Svchost Activity
Sigma detected: System File Execution Location Anomaly
Sigma detected: Xmrig
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Yara detected UAC Bypass using CMSTP
Yara detected Xmrig cryptocurrency miner
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1429991 Sample: U8fPEL1Gwi.exe Startdate: 23/04/2024 Architecture: WINDOWS Score: 100 77 gjhfhgdg.insane.wang 2->77 83 Sigma detected: Xmrig 2->83 85 Malicious sample detected (through community Yara rule) 2->85 87 Yara detected PureLog Stealer 2->87 89 16 other signatures 2->89 10 U8fPEL1Gwi.exe 1 8 2->10         started        14 svchost.exe 1 4 2->14         started        16 svchost.exe 2->16         started        18 7 other processes 2->18 signatures3 process4 file5 71 C:\Users\user\AppData\Roaming\svchost.exe, PE32+ 10->71 dropped 115 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->115 117 Drops PE files with benign system names 10->117 20 cmd.exe 1 10->20         started        22 cmd.exe 1 10->22         started        25 conhost.exe 10->25         started        119 Writes to foreign memory regions 14->119 121 Allocates memory in foreign processes 14->121 123 Modifies the context of a thread in another process (thread injection) 14->123 125 Disables UAC (registry) 14->125 27 powershell.exe 24 14->27         started        29 conhost.exe 14->29         started        33 3 other processes 14->33 127 Adds a directory exclusion to Windows Defender 16->127 129 Injects a PE file into a foreign processes 16->129 31 powershell.exe 16->31         started        35 4 other processes 16->35 73 C:\Windows\Temp\2k0t1pui.inf, Windows 18->73 dropped 75 C:\Windows\Temp\1qi0yxz1.inf, Windows 18->75 dropped 37 8 other processes 18->37 signatures6 process7 signatures8 39 svchost.exe 4 20->39         started        42 conhost.exe 20->42         started        44 timeout.exe 1 20->44         started        91 Uses schtasks.exe or at.exe to add and modify task schedules 22->91 46 conhost.exe 22->46         started        48 schtasks.exe 1 22->48         started        93 Loading BitLocker PowerShell Module 27->93 50 conhost.exe 27->50         started        52 conhost.exe 31->52         started        process9 signatures10 95 Writes to foreign memory regions 39->95 97 Allocates memory in foreign processes 39->97 99 Modifies the context of a thread in another process (thread injection) 39->99 101 2 other signatures 39->101 54 RegAsm.exe 39->54         started        58 powershell.exe 39->58         started        60 conhost.exe 39->60         started        62 2 other processes 39->62 process11 dnsIp12 79 gjhfhgdg.insane.wang 185.196.10.233, 3562, 39001, 49705 SIMPLECARRIERCH Switzerland 54->79 103 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 54->103 105 Found strings related to Crypto-Mining 54->105 107 Writes to foreign memory regions 54->107 113 2 other signatures 54->113 64 AddInProcess.exe 54->64         started        67 AddInProcess.exe 54->67         started        109 Loading BitLocker PowerShell Module 58->109 69 conhost.exe 58->69         started        signatures13 111 Detected Stratum mining protocol 79->111 process14 signatures15 81 Query firmware table information (likely to detect VMs) 64->81
Score:
73%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/66436b011443b69675fa038efcf199781656c8fbf768b6989d7cfcd53ab487d2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/66436b011443b69675fa038efcf199781656c8fbf768b6989d7cfcd53ab487d2/
Threat name:
ByteCode-MSIL.Trojan.Zilla
Create hunting rule
Status:
Malicious
First seen:
2024-04-22 23:03:01 UTC
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mzbwwaiuio3jm5p2aohpz4mzpalfnsh365ulnge5pt6nkovuq7ja._file
Verdict:
unknown
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig evasion miner persistence trojan
Link:
https://tria.ge/reports/240422-2q313shd7t/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Checks computer location settings
Executes dropped EXE
Windows security modification
XMRig Miner payload
UAC bypass
Windows security bypass
xmrig
Unpacked files
SH256 hash:
66436b011443b69675fa038efcf199781656c8fbf768b6989d7cfcd53ab487d2
MD5 hash:
d28d15d73793b9630f91b3b4041af46c
SHA1 hash:
5311c46b4ca0900b349dbf42434016f99eef893d
Link:
https://www.unpac.me/results/529405d4-7cd4-4aa5-97f9-2f499935f2ed/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/66436b011443/report/overview.html
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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table

File information

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

Web download

QuasarRAT

Executable exe 66436b011443b69675fa038efcf199781656c8fbf768b6989d7cfcd53ab487d2

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2823393/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments


Avatar
zbet commented on 2024-04-22 22:47:49 UTC

url : hxxp://185.196.10.233/ghgjhjhgj.exe