MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422. 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: 19
| SHA256 hash: | b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422 |
|---|---|
| SHA3-384 hash: | 6a2e6261556855ba66115aa264a46e7fe013ec5fab61ef73964f6bebc0b97e03ec64f2bdc14001664013242b3af15fd2 |
| SHA1 hash: | 4223ff7e3077270891d03b06498fd3ad6aefb0cc |
| MD5 hash: | d2e366fcb0c9d31bb53bcf7cfffb2b9b |
| humanhash: | fourteen-ack-saturn-mobile |
| File name: | file |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 2'032'640 bytes |
| First seen: | 2025-10-20 04:04:24 UTC |
| Last seen: | 2025-10-21 04:05:10 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 49152:GM83d1O5RtVbBUflo3UDhfEC3lWmoBqP3NI1lyDXYO3b:U3/0VbCE8W5cOlyDXXb |
| Threatray | 242 similar samples on MalwareBazaar |
| TLSH | T1059533743090409AD31FE870769AF98D276AED474079363703B44DAF22C72BDAB95D36 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| Reporter |  Bitsight |
| Tags: | dropped-by-amadey exe QuasarRAT |
Intelligence
File Origin
# of uploads :
10
# of downloads :
80
Origin country :
USVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422.bin.exe
Verdict:
Malicious activity
Analysis date:
2025-10-20 00:15:10 UTC
Tags:
evasion auto-startup anti-evasion xworm
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XWorm
Verdict:
Malicious
Score:
97.4%
Tags:
vmdetect asyncrat quasar
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a window
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Sending a custom TCP request
Launching a process
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
evasive obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
Labled as:
MSIL.Cassiopeia.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-19T16:01:00Z UTC
Last seen:
2025-10-20T10:13:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Generic Trojan.MSIL.Quasar.fea HEUR:Trojan.Win32.Generic HEUR:Trojan.MSIL.APosT.gen HEUR:Backdoor.MSIL.XWorm.gen Trojan.Win32.Agent.sb Backdoor.MSIL.XWorm.b Backdoor.MSIL.XWorm.a Trojan-PSW.MSIL.Agent.sb Trojan.MSIL.Quasar.a Trojan-PSW.Win32.Stealer.sb Trojan.MSIL.DOTHETUK.sb Trojan.MSIL.Quasar.feb Backdoor.Agent.TCP.C&C HEUR:Trojan-Banker.MSIL.ClipBanker.gen HEUR:Backdoor.MSIL.XClient.b Backdoor.MSIL.Crysan.d VHO:Trojan.MSIL.Cryptos.gen Trojan.Win32.Vimditator.sb PDM:Trojan.Win32.Tasker.cust
Malware family:
XWorm
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
11 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.18 Win 32 Exe x86
Verdict:
Malicious
Threat:
Family.XWORM
Threat name:
ByteCode-MSIL.Trojan.Cassiopeia
Status:
Malicious
First seen:
2025-10-19 19:06:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
30 of 38 (78.95%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
xworm
quasarrat
Similar samples:
+ 232 additional samples on MalwareBazaar
Result
Malware family:
xworm
Score:
10/10
Tags:
family:quasar family:xworm execution persistence rat spyware trojan
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
Enumerates physical storage devices
Checks for VirtualBox DLLs, possible anti-VM trick
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Quasar RAT
Quasar family
Quasar payload
Xworm
Xworm family
Malware Config
C2 Extraction:
uchiwa5.duckdns.org:8887
Verdict:
Malicious
Tags:
External_IP_Lookup
YARA:
n/a
Unpacked files
SH256 hash:
b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422
MD5 hash:
d2e366fcb0c9d31bb53bcf7cfffb2b9b
SHA1 hash:
4223ff7e3077270891d03b06498fd3ad6aefb0cc
SH256 hash:
686f4efa423dd3ea3884ec8d71c54266532a22e81f7874819bf3cf6fa2fcd546
MD5 hash:
9e74d013cf7315d6b202da60bbc5df70
SHA1 hash:
245fffd402d36ecb294a8aa6de721f6fe3a6c24d
Detections:
win_xworm_w0
XWorm
win_xworm_bytestring
win_mal_XWorm
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
MALWARE_Win_AsyncRAT
MALWARE_Win_XWorm
SH256 hash:
792569c65020dfc3644e31f55aba31078250e70dca3d7713416479be4f25c48a
MD5 hash:
cd36c5fcbd4335ea8f4d586b2d13a559
SHA1 hash:
6669a01660da6436713fb6e3bc9fb32593bca1d4
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
HKTL_NET_GUID_Quasar
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Dropped by
Amadey
Delivery method
Distributed via web download
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