MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bb0daf6ad46380eb905da9f586d108f9a9e7bd83c31d7903824ebe3abd65fb0. 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: 16


Intelligence 16 IOCs YARA 11 File information Comments
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SHA256 hash: 4bb0daf6ad46380eb905da9f586d108f9a9e7bd83c31d7903824ebe3abd65fb0
SHA3-384 hash: 03d24f9df18469be15adc14568723c161b2f34b19076d928921bf7560890fe9a70203094db965df6591cddc468a7e67a
SHA1 hash: af2c0a134a6deb56bfd7b9c54124ec8ffb30a7b6
MD5 hash: c77fb6235fa40b13509c25f8aca8da6b
humanhash: artist-georgia-victor-massachusetts
File name:c77fb6235fa40b13509c25f8aca8da6b.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:117'248 bytes
First seen:2023-12-07 16:57:22 UTC
Last seen:2024-01-05 06:28:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:DMK650osOVZFw9+F6OOCv2io4GZjzQwK5WW7VCn6Ky7FAmu3wtBUniymeq07sZPH:D+VsgFw9+xOCxWe5BV0WUniyimy3
TLSH T102B3AE443BC46A85D86DEBF45C72A74A0771EE165563C39C18F0BEBF3B939808904BD6
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f0c4824ccecef4f8 (7 x AsyncRAT, 5 x XWorm, 3 x Formbook)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
306
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
XWorm
Create hunting rule
Link:
https://www.capesandbox.com/analysis/463312/
Detection(s):
Win.Packed.njRAT-10002074-1
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Win.Packed.Msilzilla-10002982-0
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ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% directory
Launching a process
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm blackworm cmd explorer hook keylogger lolbin njrat replace schtasks worm xworm
Link:
https://www.filescan.io/uploads/6571f99feba108031486cd64/reports/139920c5-4d5d-4673-81d5-998490888b34/overview
Verdict:
Malicious
Labled as:
Backdoor.MSIL.XWorm
Link:
https://www.hybrid-analysis.com/sample/4bb0daf6ad46380eb905da9f586d108f9a9e7bd83c31d7903824ebe3abd65fb0
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
XWorm
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ba48cc08-01e2-493e-83af-9c9c7ebe6cfb
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1355647
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1355647 Sample: EjmKy5X5vn.exe Startdate: 07/12/2023 Architecture: WINDOWS Score: 100 53 canadian-perspectives.gl.at.ply.gg 2->53 57 Snort IDS alert for network traffic 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 8 other signatures 2->63 8 EjmKy5X5vn.exe 1 9 2->8         started        13 msedge.exe 2->13         started        15 msedge.exe 2->15         started        17 msedge.exe 2->17         started        signatures3 process4 dnsIp5 55 canadian-perspectives.gl.at.ply.gg 147.185.221.16, 33203, 49735, 49736 SALSGIVERUS United States 8->55 51 C:\Users\user\AppData\Roaming\msedge.exe, PE32 8->51 dropped 65 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->65 67 Protects its processes via BreakOnTermination flag 8->67 69 Bypasses PowerShell execution policy 8->69 77 2 other signatures 8->77 19 cmd.exe 8->19         started        21 powershell.exe 19 8->21         started        23 powershell.exe 21 8->23         started        31 4 other processes 8->31 71 Antivirus detection for dropped file 13->71 73 Multi AV Scanner detection for dropped file 13->73 75 Machine Learning detection for dropped file 13->75 25 cmd.exe 15->25         started        27 schtasks.exe 15->27         started        29 schtasks.exe 15->29         started        file6 signatures7 process8 process9 45 2 other processes 19->45 33 conhost.exe 21->33         started        35 conhost.exe 23->35         started        47 2 other processes 25->47 37 conhost.exe 27->37         started        39 conhost.exe 29->39         started        41 conhost.exe 31->41         started        43 conhost.exe 31->43         started        49 2 other processes 31->49
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4bb0daf6ad46380eb905da9f586d108f9a9e7bd83c31d7903824ebe3abd65fb0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4bb0daf6ad46380eb905da9f586d108f9a9e7bd83c31d7903824ebe3abd65fb0/
Threat name:
ByteCode-MSIL.Backdoor.XWormRAT
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Status:
Malicious
First seen:
2023-12-07 07:03:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
22 of 23 (95.65%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=joynv5vniy4a5oif3kpvq3iqr6nj466yhqy5pebyetv6hk6wl6ya._file
Verdict:
malicious
Result
Malware family:
xworm
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Score:
  10/10
Tags:
family:xworm persistence rat trojan
Link:
https://tria.ge/reports/231207-vgtbysdg93/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Deletes itself
Drops startup file
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
canadian-perspectives.gl.at.ply.gg:33203
Unpacked files
SH256 hash:
4bb0daf6ad46380eb905da9f586d108f9a9e7bd83c31d7903824ebe3abd65fb0
MD5 hash:
c77fb6235fa40b13509c25f8aca8da6b
SHA1 hash:
af2c0a134a6deb56bfd7b9c54124ec8ffb30a7b6
Detections:
MALWARE_Win_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
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win_xworm_bytestring
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MALWARE_Win_AsyncRAT
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Link:
https://www.unpac.me/results/72bbc53f-2f92-4fe4-ab0d-edf3c5effd12/
Malware family:
BlackWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4bb0daf6ad46/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4bb0daf6ad46380eb905da9f586d108f9a9e7bd83c31d7903824ebe3abd65fb0

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
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Author:ditekSHen
Description:Detects XWorm
Rule name:Multifamily_RAT_Detection
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Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
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Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:win_xworm_bytestring
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm

File information

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

Web download

AsyncRAT

Executable exe 4bb0daf6ad46380eb905da9f586d108f9a9e7bd83c31d7903824ebe3abd65fb0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2712126/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/463312/

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