MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b46e6a3843acbce890fa4fb3525ad232617f65e1d758a1a54c9c38ce78ddcfb. 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: 16


Intelligence 16 IOCs YARA 27 File information Comments

SHA256 hash: 3b46e6a3843acbce890fa4fb3525ad232617f65e1d758a1a54c9c38ce78ddcfb
SHA3-384 hash: c268a94b33988a44c6f85a288540efe7947248c941a08746ac81a8c77cf9a0079f33dd5d5aa011203a2b3e405e99a8f3
SHA1 hash: 0d388a200dbc612edf36369500889aba1fe4d5dd
MD5 hash: 44b7d79f19d7df2bb5db6cece3d80330
humanhash: march-five-idaho-november
File name:file
Download: download sample
Signature QuasarRAT
File size:1'835'008 bytes
First seen:2026-03-10 08:46:56 UTC
Last seen:2026-03-10 08:49:03 UTC
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:bg0iZSKxJzck+7eWBRwRR16zA0KKm77yviUSQaZaOwI55l2S62r9cGW/yFoBkkAV:bg0OTYj77wRGKKm77LrwCB6hqan0hgQ
TLSH T1E5850250B7F5851BE2BF2BB9A4B308090B37FA53D93AC75F1948909C1EA73409E517A3
TrID 63.0% (.RLL) Microsoft Resource Library (x86) (177572/6/26)
25.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
2.3% (.EXE) Win64 Executable (generic) (6522/11/2)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter Bitsight
Tags:dropped-by-amadey exe fbf543 QuasarRAT


Avatar
Bitsight
url: http://158.94.211.222/files/7942715918/1SbgglW.exe

Intelligence


File Origin
# of uploads :
12
# of downloads :
220
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2026-03-10 08:48:59 UTC
Tags:
auto-reg evasion crypto-regex pulsar rat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
vmdetect quasar emotet
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm base64 cmd cscript explorer fingerprint hacktool lolbin mshta obfuscated packed privilege reconnaissance runonce schtasks update
Verdict:
Malicious
File Type:
exe x32
Detections:
PDM:Trojan.Win32.Generic Trojan-PSW.MSIL.Agent.sb HEUR:Trojan-Banker.MSIL.ClipBanker.gen HEUR:Trojan.MSIL.Quasar.gen Backdoor.MSIL.PulsarRAT.sb PDM:Trojan.Win32.Tasker.cust
Verdict:
QuasarRat
YARA:
15 match(es)
Tags:
.Net Executable Fody/Costura Packer Html Malicious Managed .NET PDB Path PE (Portable Executable) PE File Layout 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 Win 32 Exe x86
Malware Config
C2 Extraction:
PORT: ChainingModeGCM
CNC: ChainingModeGCM
Threat name:
ByteCode-MSIL.Hacktool.Aikaantivm
Status:
Malicious
First seen:
2026-03-10 08:47:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
19 of 24 (79.17%)
Threat level:
  1/5
Verdict:
malicious
Label(s):
quasarrat
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:office04 execution persistence spyware trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
45.88.186.189:4782
Unpacked files
SH256 hash:
3b46e6a3843acbce890fa4fb3525ad232617f65e1d758a1a54c9c38ce78ddcfb
MD5 hash:
44b7d79f19d7df2bb5db6cece3d80330
SHA1 hash:
0d388a200dbc612edf36369500889aba1fe4d5dd
Detections:
QuasarRAT
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:Check_Dlls
Rule name:cobalt_strike_beacon_detected
Author:0x0d4y
Description:This rule detects cobalt strike beacons.
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_Fody
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:Indicator_MiniDumpWriteDump
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
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:MAL_BackNet_Nov18_1
Author:Florian Roth (Nextron Systems)
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_BackNet_Nov18_1_RID2D6D
Author:Florian Roth
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_QuasarRAT_May19_1
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
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Pulsar_RAT
Author:@bartblaze
Description:Identifies Pulsar RAT, based on Quasar RAT.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.pulsar_rat
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
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.

Web download

QuasarRAT

Executable exe 3b46e6a3843acbce890fa4fb3525ad232617f65e1d758a1a54c9c38ce78ddcfb

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download

Comments