MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b20c481d14af70461eba639b3979e02c00c9db71478156e3b3b575673506409. 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



AsyncRAT


Vendor detections: 19


Intelligence 19 IOCs 1 YARA 2 File information Comments

SHA256 hash: 8b20c481d14af70461eba639b3979e02c00c9db71478156e3b3b575673506409
SHA3-384 hash: cbaec7e3615e45f35ba023bb6ed35a554a95e65e1a82a4fb41f96d1962558239574af39231d487c69867878cc0c9ae63
SHA1 hash: 270a869962f57e90ffa821dcc2f9d467a417475a
MD5 hash: 4cb3757f6fd1782a50746c1c81fffc25
humanhash: massachusetts-pasta-washington-freddie
File name:Xenofake.exe
Download: download sample
Signature AsyncRAT
File size:209'408 bytes
First seen:2025-07-27 05:45:05 UTC
Last seen:2025-07-28 01:15:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash a9c887a4f18a3fede2cc29ceea138ed3 (36 x CoinMiner, 18 x AsyncRAT, 17 x BlankGrabber)
ssdeep 3072:WdhPmuW7xxDOLcTCTrr/knhAcK5MpxJE8DEUapcvR1rp8btgaj5:WdllW7xxDfAYtE8H3vRXGg
TLSH T1FE245C2F71DF4A80C32B83BA1FAB8939AB319557E083A55381F281FAC51D16F73D9065
TrID 38.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
15.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
11.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.5% (.EXE) Win32 Executable (generic) (4504/4/1)
4.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
193.161.193.99:48581

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
193.161.193.99:48581 https://threatfox.abuse.ch/ioc/1561123/

Intelligence


File Origin
# of uploads :
3
# of downloads :
65
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
Xenofake.exe
Verdict:
Malicious activity
Analysis date:
2025-07-27 05:31:32 UTC
Tags:
asyncrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file in the %temp% directory
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Running batch commands
Creating a window
Connection attempt to an infection source
Sending a custom TCP request
Deleting a recently created file
Unauthorized injection to a recently created process
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
AsyncRAT, zgRAT
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Encrypted powershell cmdline option found
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sample uses string decryption to hide its real strings
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1744837 Sample: Xenofake.exe Startdate: 27/07/2025 Architecture: WINDOWS Score: 100 41 mosasil583-48581.portmap.host 2->41 43 bg.microsoft.map.fastly.net 2->43 49 Suricata IDS alerts for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 11 other signatures 2->55 9 Xenofake.exe 3 2->9         started        13 svchost.exe 1 1 2->13         started        16 ritheevirus.exe 3 2->16         started        signatures3 process4 dnsIp5 37 C:\Users\user\AppData\Roaming\Xeno.exe, PE32+ 9->37 dropped 39 C:\Users\user\AppData\...\ritheevirus.exe, PE32 9->39 dropped 67 Encrypted powershell cmdline option found 9->67 69 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->69 18 ritheevirus.exe 1 3 9->18         started        22 powershell.exe 23 9->22         started        24 Xeno.exe 9->24         started        47 127.0.0.1 unknown unknown 13->47 file6 signatures7 process8 dnsIp9 45 mosasil583-48581.portmap.host 193.161.193.99, 48581, 49714, 49723 BITREE-ASRU Russian Federation 18->45 57 Antivirus detection for dropped file 18->57 59 Multi AV Scanner detection for dropped file 18->59 61 Protects its processes via BreakOnTermination flag 18->61 63 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 18->63 26 cmd.exe 1 18->26         started        65 Loading BitLocker PowerShell Module 22->65 29 conhost.exe 22->29         started        31 WmiPrvSE.exe 22->31         started        signatures10 process11 signatures12 71 Uses schtasks.exe or at.exe to add and modify task schedules 26->71 33 conhost.exe 26->33         started        35 schtasks.exe 1 26->35         started        process13
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) Win 32 Exe x86
Verdict:
Malicious
Threat:
HEUR:Backdoor.MSIL.Crysan
Threat name:
Win32.Dropper.Dapato
Status:
Malicious
First seen:
2025-07-27 05:31:32 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
21 of 23 (91.30%)
Threat level:
  3/5
Verdict:
malicious
Label(s):
asyncrat purecrypter
Similar samples:
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:the dad defense_evasion discovery execution persistence rat
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Obfuscated Files or Information: Command Obfuscation
Checks computer location settings
Executes dropped EXE
Async RAT payload
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
mosasil583-48581.portmap.host:48581
Unpacked files
SH256 hash:
8b20c481d14af70461eba639b3979e02c00c9db71478156e3b3b575673506409
MD5 hash:
4cb3757f6fd1782a50746c1c81fffc25
SHA1 hash:
270a869962f57e90ffa821dcc2f9d467a417475a
SH256 hash:
fc641bd784f792ded25841af496f88d9382f7a08a4ba8eafc51e397c7eb0bca2
MD5 hash:
c0a9e51f13f4636c7e3bdf8203d2faae
SHA1 hash:
4cba616ba5f7ed3890f6d83b069480e3ce212a32
Detections:
win_asyncrat_w0 AsyncRAT asyncrat win_asyncrat_bytecodes INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
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:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA

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