MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b54bc4caa16d8a0832ea833429556d9db8bd3b5bcf0c9cb1d0de0781bbb620d0. 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: 18


Intelligence 18 IOCs 1 YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b54bc4caa16d8a0832ea833429556d9db8bd3b5bcf0c9cb1d0de0781bbb620d0
SHA3-384 hash: 4ff0fa2435e78cadcebe6ee5e05f2822c01b56a2997d801559400c7fc1cacde272b3dd5bb593dc6d55e696d304b931c9
SHA1 hash: ae04c23604aa238e4eb59327986d3f1ace780c90
MD5 hash: 9d9bd074b5e349b11408a63256af6d5c
humanhash: sad-twenty-minnesota-lake
File name:9D9BD074B5E349B11408A63256AF6D5C.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:514'048 bytes
First seen:2026-07-24 15:05:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'123 x AgentTesla, 20'137 x Formbook, 12'362 x SnakeKeylogger)
ssdeep 6144:QTEgdc0YSXO0l6HeR9ibvgjTUQff3NMebIedNcEYjb8F94kx94i54tcTR3k:QTEgdfY8l6HifFDToY/vXwcdk
TLSH T19AB47D4027F8962BE16F57B9E87114209BF5F807B2A7EB4F4540B2F92C66B069D80773
TrID 60.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
13.7% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.4% (.EXE) Win64 Executable (generic) (6522/11/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
162.19.139.33:5553

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
162.19.139.33:5553 https://threatfox.abuse.ch/ioc/1856811/

Intelligence

File Origin
# of uploads :
1
# of downloads :
179
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
QuasarRAT
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e091fe62-6eaa-432d-b028-e5651cbf21a7/
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/75965/
Detection(s):
Win.Malware.Generic-9883082-0
Create hunting rule

Win.Malware.Generic-9883083-0
Create hunting rule

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

Win.Packed.Downeks-6898097-0
Create hunting rule

YARA.DITEKSHEN_MALWARE_Win_Quasarstealer.UNOFFICIAL
Create hunting rule

YARA.SIGNATURE_BASE_MAL_Quasarrat_May19_1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Launching a process
Enabling the 'hidden' option for analyzed file
Creating a process from a recently created file
Creating a file
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt
Setting a keyboard event handler
Launching a service
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 explorer fingerprint infostealer lolbin obfuscated obfuscated reconnaissance runonce stealer
Link:
https://www.filescan.io/uploads/6a637f4a6dbd4fa7bc47b1a7/reports/8ec47490-3eb5-4491-adbf-4ec706269e64/overview
Verdict:
Malicious
Labled as:
MSIL.PasswordStealerA.Generic
Link:
https://www.hybrid-analysis.com/sample/b54bc4caa16d8a0832ea833429556d9db8bd3b5bcf0c9cb1d0de0781bbb620d0
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-23T20:10:00Z UTC
Last seen:
2026-07-23T21:55:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b54bc4caa16d8a0832ea833429556d9db8bd3b5bcf0c9cb1d0de0781bbb620d0/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4e6a2a81-f16a-44db-a0e7-8e74e3447875
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1947729
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential Privilege Escalation using Task Scheduler highest RunLevel
Sample uses string decryption to hide its real strings
Sigma detected: Potentially Suspicious Malware Callback Communication
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1947729 Sample: sgVOlC07sv.exe Startdate: 24/07/2026 Architecture: WINDOWS Score: 100 41 upxdate.duckdns.org 2->41 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus / Scanner detection for submitted sample 2->57 61 6 other signatures 2->61 9 sgVOlC07sv.exe 4 2->9         started        13 sgVOlC07sv.exe 2 2->13         started        signatures3 59 Uses dynamic DNS services 41->59 process4 file5 37 C:\Users\user\AppData\Roaming\vanguard.exe, PE32 9->37 dropped 39 C:\Users\user\AppData\...\sgVOlC07sv.exe.log, CSV 9->39 dropped 63 Uses schtasks.exe or at.exe to add and modify task schedules 9->63 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->65 67 Potential Privilege Escalation using Task Scheduler highest RunLevel 9->67 15 vanguard.exe 2 9->15         started        19 schtasks.exe 1 9->19         started        21 vanguard.exe 2 13->21         started        23 schtasks.exe 1 13->23         started        signatures6 process7 dnsIp8 43 upxdate.duckdns.org 162.19.139.33, 5552, 5553 OVHFR Germany 15->43 45 Antivirus detection for dropped file 15->45 47 Multi AV Scanner detection for dropped file 15->47 49 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->49 25 schtasks.exe 1 15->25         started        27 conhost.exe 19->27         started        51 Installs a global keyboard hook 21->51 29 schtasks.exe 1 21->29         started        31 conhost.exe 23->31         started        signatures9 process10 process11 33 conhost.exe 25->33         started        35 conhost.exe 29->35         started       
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b54bc4caa16d8a0832ea833429556d9db8bd3b5bcf0c9cb1d0de0781bbb620d0
Verdict:
QuasarRat
YARA:
13 match(es)
Tags:
.Net Executable Malicious Managed .NET PE (Portable Executable) PE File Layout QuasarRat RAT SOS: 0.32 Win 32 Exe x86
Malware Config
C2 Extraction:
PORT: 5553
CNC: upxdate.duckdns.org
PORT: 5552
CNC: upxdate.duckdns.org
Link:
https://app.malva.re/file/9d9bd074b5e349b11408a63256af6d5c
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b54bc4caa16d8a0832ea833429556d9db8bd3b5bcf0c9cb1d0de0781bbb620d0/
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2026-07-20 00:36:00 UTC
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvf4jsvbnwfaqmxkqm2csvlntw4l2o23z4gjzmoq3ydydo5wedia._file
Verdict:
malicious
Label(s):
QuasarRAT
Create hunting rule
Link:
https://reports.threatray.com/11035ec1-a856-456a-946e-7b4f910b5e5b
Similar samples:
0ae8c5022567fc8588fdc2fbf27d1d245f7e9bb15a23cb8a01962be6b51cb73c
QuasarRAT
7ed207c4ee2943946feaf7aa6d7a587d9fc156e1c5a7d8f5a2b8248bec6c671e
QuasarRAT
7f96177416122537d0ca9f70b7ae0d34c8f72d32c7b1382d32c76fb8a5c6ad80
QuasarRAT
fa22721ab138c896200a7f28f6e3e29ead531b21c9e26371a6e1ccaa62cc6e84
QuasarRAT
fda825f6ddd6738d57b8a7c16b793d7580ff3bb0427b6b5412d4b82c8bae3145
QuasarRAT
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:riot execution persistence spyware trojan
Link:
https://tria.ge/reports/260724-sgjrea1xaw/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Executes dropped EXE
Family: Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
upxdate.duckdns.org:5552
upxdate.duckdns.org:5553
Unpacked files
SH256 hash:
b54bc4caa16d8a0832ea833429556d9db8bd3b5bcf0c9cb1d0de0781bbb620d0
MD5 hash:
9d9bd074b5e349b11408a63256af6d5c
SHA1 hash:
ae04c23604aa238e4eb59327986d3f1ace780c90
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/c0abf7ff-b797-4dc6-a98d-b0dff6d8d43d/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b54bc4caa16d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b54bc4caa16d8a0832ea833429556d9db8bd3b5bcf0c9cb1d0de0781bbb620d0

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: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: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: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 artifacts observed in infostealers
Rule name:Lumma_Stealer_Detection
Create hunting rule
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
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
Create hunting rule
Description:Detects QuasarRAT malware
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 (https://www.lukeacha.com)
Description:Generic detection for multiple RAT families, PUPs, packers and suspicious executables. NOTE: This rule may produce false positives. Updated May 2026 to reduce False Positives.
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:quasarrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:quasarrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
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)
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:win_quasar_rat_client
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

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/75965/

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