MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 853cfdf61e9f6098348242d11e4cb581ed9bfe8f960fc2f2fd7ea93e5c9e1578. 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: 14


Intelligence 14 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 853cfdf61e9f6098348242d11e4cb581ed9bfe8f960fc2f2fd7ea93e5c9e1578
SHA3-384 hash: 01994ed9916c95c00576dfe3926807419ad3817994b6cb67e0ff8d938b53e13b8bee383221c9f4b94a02f1e2713da5cc
SHA1 hash: 5bde72588e7a9721185e00d978c104d61ca389d3
MD5 hash: e164d44d5f7fd734a56464f573807c4a
humanhash: snake-fifteen-pennsylvania-robin
File name:Client.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'851'404 bytes
First seen:2025-11-23 00:00:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'841 x AgentTesla, 19'772 x Formbook, 12'296 x SnakeKeylogger)
ssdeep 24576:RXcrQ8SKxJzck+7eWBRwRR16zA0KKm77yviUSQaZaOwI55l2S62r9cGW/yFoBkkj:RXcrQKTYj77wRGKKm77LrwCB6hqany
TLSH T177850251B7F98117F2BF2BB9A8B304064B77FA539A36C79E0948905C2EA3740DE50367
TrID 51.8% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.4% (.EXE) Win64 Executable (generic) (10522/11/4)
4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter Hexastrike
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
48
Origin country :
IE IE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Client.exe
Verdict:
Suspicious activity
Analysis date:
2025-11-23 07:00:09 UTC
Tags:
crypto-regex pulsar rat
Link:
https://app.any.run/tasks/05ca9c29-9a02-4418-b71d-d46cfa83a5c8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39589/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Bulz-9933026-0
Create hunting rule

Win.Malware.Generic-6623004-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69225b63b6ee81118d2c6015
Tags:
vmdetect quasar emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm anti-vm base64 cmd explorer fingerprint hacktool lolbin obfuscated packed privilege reconnaissance rundll32 runonce update
Link:
https://www.filescan.io/uploads/69225666f96b58f0dc80609a/reports/6eef943d-1f30-43e1-a945-17e1b8dff8a7/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/853cfdf61e9f6098348242d11e4cb581ed9bfe8f960fc2f2fd7ea93e5c9e1578
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-19T09:43:00Z UTC
Last seen:
2025-11-23T03:45:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/853cfdf61e9f6098348242d11e4cb581ed9bfe8f960fc2f2fd7ea93e5c9e1578/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ff70ccf9-c974-475a-856d-1d12b0eb91f5
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/853cfdf61e9f6098348242d11e4cb581ed9bfe8f960fc2f2fd7ea93e5c9e1578
Verdict:
QuasarRat
YARA:
15 match(es)
Tags:
.Net Executable Fody/Costura Packer Html Malicious Managed .NET PDB Path PE (Portable Executable) PE File Layout PE Memory-Mapped (Dump) QuasarRat RAT SOS: 0.14 SOS: 0.15 SOS: 0.18 SOS: 0.20 SOS: 0.22 SOS: 0.23 SOS: 0.24 SOS: 0.25 SOS: 0.26 SOS: 0.27 SOS: 0.29 SOS: 0.32 SOS: 0.34 SOS: 0.35 SOS: 0.63
Link:
https://app.malva.re/file/e164d44d5f7fd734a56464f573807c4a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/853cfdf61e9f6098348242d11e4cb581ed9bfe8f960fc2f2fd7ea93e5c9e1578/
Threat name:
Win32.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2025-11-19 17:09:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qu6p35q6t5qjqnecilir4tfvqhwzx7upsyh4f4x5p2ut4xe6cv4a._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:anydesk discovery
Link:
https://tria.ge/reports/251123-awkm5swjcy/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Malware Config
C2 Extraction:
went-hello.gl.at.ply.gg:1337
Verdict:
Malicious
Tags:
red_team_tool rat quasar_rat backdoor backnet Win.Malware.Generic-9883083-0
YARA:
HKTL_EXE_AlKhaser_Jul_01 MAL_QuasarRAT_May19_1 malware_windows_quasarrat MAL_BackNet_Nov18_1
Link:
https://app.threat.zone/submission/29e5db76-b633-477a-85b1-dfb9c3337ee5
Unpacked files
SH256 hash:
853cfdf61e9f6098348242d11e4cb581ed9bfe8f960fc2f2fd7ea93e5c9e1578
MD5 hash:
e164d44d5f7fd734a56464f573807c4a
SHA1 hash:
5bde72588e7a9721185e00d978c104d61ca389d3
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/f4add769-92dd-4d96-bc79-7c469a8ec0d1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.42
Link:
https://yomi.yoroi.company/submissions/853cfdf61e9f6098348242d11e4cb581ed9bfe8f960fc2f2fd7ea93e5c9e1578

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:Check_Dlls
Create hunting rule
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:Indicator_MiniDumpWriteDump
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:MAL_BackNet_Nov18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_BackNet_Nov18_1_RID2D6D
Create hunting rule
Author:Florian Roth
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
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:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/39589/

Comments