MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ee4552132293dd151868a5cfb0e3e3fd2816956ab3cd30af8fa37e3802014f0d. 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 26 File information Comments

SHA256 hash: ee4552132293dd151868a5cfb0e3e3fd2816956ab3cd30af8fa37e3802014f0d
SHA3-384 hash: b6bc6a55608166d4e9613a7dda76ccffb9cfd0eff5dfbc544a3b78040f13ee6b4c626f1c9a55c281489408dba4a4d090
SHA1 hash: e5e577773a1baee9e1a32744e3428365cdc241dd
MD5 hash: 8b519622ec0618ec14d112201990b192
humanhash: moon-grey-cardinal-comet
File name:Client.exe
Download: download sample
Signature QuasarRAT
File size:1'950'208 bytes
First seen:2025-11-23 00:10:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:grmegPVSueWBRrRREJNN0m8yXP8oc5R+NntqN0KK8i7yviUBQa2aOwIUyl2ZV2DO:grZu77rRFirm+Nn42KK8i7Ltwa+VVaS
Threatray 414 similar samples on MalwareBazaar
TLSH T1B495F110B7F58216F1FF6BB9A8B708450B37B9039A3AC74E199CA09D1FA33419E51367
TrID 58.8% (.RLL) Microsoft Resource Library (x86) (177572/6/26)
24.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
5.4% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
3.4% (.EXE) Win64 Executable (generic) (10522/11/4)
2.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Magika pebin
Reporter Hexastrike
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
77
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 10:45:50 UTC
Tags:
anti-evasion

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
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a file in the Program Files subdirectories
Launching a process
BSOD occurred
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 runonce update
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-22T13:25:00Z UTC
Last seen:
2025-11-23T01:57:00Z UTC
Hits:
~10
Gathering data
Verdict:
QuasarRat
YARA:
11 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: 0.19 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: 0.61 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Hacktool.Aikaantivm
Status:
Malicious
First seen:
2025-11-22 18:18:28 UTC
AV detection:
28 of 38 (73.68%)
Threat level:
  1/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Checks for VirtualBox DLLs, possible anti-VM trick
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
google:8888
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
Unpacked files
SH256 hash:
ee4552132293dd151868a5cfb0e3e3fd2816956ab3cd30af8fa37e3802014f0d
MD5 hash:
8b519622ec0618ec14d112201990b192
SHA1 hash:
e5e577773a1baee9e1a32744e3428365cdc241dd
Detections:
QuasarRAT
SH256 hash:
e54b3f90f18efaba3b4e714533d5e1f0aaf2f656b9166d6498e15b659cc41b8c
MD5 hash:
4a3c2b2b73407e79a9ebc6caece6c144
SHA1 hash:
70f64ab70fdc0c484da6f914d2742115c7a97141
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24 HKTL_NET_GUID_Quasar
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:Costura_Protobuf
Author:@bartblaze
Description:Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary.
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: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.

Comments