MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7570583507a88122beae60126d30e6ef9a0ecdf6d6e5cbfa5eadfbf2beea1f6f. 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: 17


Intelligence 17 IOCs YARA 16 File information Comments

SHA256 hash: 7570583507a88122beae60126d30e6ef9a0ecdf6d6e5cbfa5eadfbf2beea1f6f
SHA3-384 hash: ba215a2b51d06c938f2b984557e995b345f62ef9cb7622b3d5d4b22c2334a161b8903eda4188c0a75c31c6dc26256db4
SHA1 hash: 8fd7e4efaca5aee63d72265d4373b1bf7bd9c4de
MD5 hash: 481070cd319071d67812ffc598ebf3a6
humanhash: indigo-early-pasta-thirteen
File name:ONAYLA.exe
Download: download sample
Signature AsyncRAT
File size:1'117'680 bytes
First seen:2023-05-26 08:07:54 UTC
Last seen:2023-05-28 12:00:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 00be6e6c4f9e287672c8301b72bdabf3 (116 x RedLineStealer, 70 x AsyncRAT, 55 x AgentTesla)
ssdeep 24576:wNA3R5drXwDhUSW6wJ3KKltLCco9ReqdfDeWH5AOPbZCw:p5WuJaKltWCqB5T
Threatray 507 similar samples on MalwareBazaar
TLSH T107351212BAC584B2D5721A360939EB1569BE7D301F34CA1FB3D43D6DCA312829629F73
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 5970620f964d1717 (3 x AsyncRAT, 1 x Formbook)
Reporter TeamDreier
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
255
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
ONAYLA.exe
Verdict:
Malicious activity
Analysis date:
2023-05-26 08:10:08 UTC
Tags:
asyncrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for synchronization primitives
Creating a file in the %temp% directory
Running batch commands
Sending a custom TCP request
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Launching a process
Searching for the window
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware lolbin overlay packed quasar setupapi.dll shdocvw.dll shell32.dll
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.
Result
Threat name:
AsyncRAT
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 876089 Sample: ONAYLA.exe Startdate: 26/05/2023 Architecture: WINDOWS Score: 100 66 frontbrockmepronto.ddns.net 2->66 76 Malicious sample detected (through community Yara rule) 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 Yara detected AsyncRAT 2->80 82 4 other signatures 2->82 15 ONAYLA.exe 4 10 2->15         started        18 procs.exe 2->18         started        signatures3 process4 file5 62 C:\Users\user\AppData\Local\...\ihber.sfx.exe, PE32 15->62 dropped 21 cmd.exe 1 15->21         started        70 Multi AV Scanner detection for dropped file 18->70 72 Machine Learning detection for dropped file 18->72 74 Injects a PE file into a foreign processes 18->74 24 procs.exe 18->24         started        signatures6 process7 signatures8 84 Uses schtasks.exe or at.exe to add and modify task schedules 21->84 26 ihber.sfx.exe 8 21->26         started        30 conhost.exe 21->30         started        process9 file10 60 C:\Users\user\AppData\Local\Temp\ihber.exe, PE32 26->60 dropped 88 Multi AV Scanner detection for dropped file 26->88 32 ihber.exe 9 26->32         started        signatures11 process12 file13 56 C:\Users\user\AppData\Local\...\yuiqm.sfx.exe, PE32 32->56 dropped 68 Multi AV Scanner detection for dropped file 32->68 36 cmd.exe 1 32->36         started        signatures14 process15 process16 38 yuiqm.sfx.exe 8 36->38         started        42 conhost.exe 36->42         started        file17 58 C:\Users\user\AppData\Local\Temp\yuiqm.exe, PE32 38->58 dropped 86 Multi AV Scanner detection for dropped file 38->86 44 yuiqm.exe 1 38->44         started        signatures18 process19 signatures20 90 Multi AV Scanner detection for dropped file 44->90 92 Machine Learning detection for dropped file 44->92 94 Injects a PE file into a foreign processes 44->94 47 yuiqm.exe 6 44->47         started        process21 file22 64 C:\Users\user\AppData\Roaming\procs.exe, PE32 47->64 dropped 50 cmd.exe 47->50         started        52 cmd.exe 47->52         started        process23 process24 54 conhost.exe 52->54         started       
Threat name:
Win32.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2023-05-26 03:28:51 UTC
File Type:
PE (Exe)
Extracted files:
26
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:mxgroup rat
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
frontbrockmepronto.ddns.net:4343
frontbrockmepronto.ddns.net:5757
frontbrockmepronto.sytes.net:4343
frontbrockmepronto.sytes.net:5757
Unpacked files
SH256 hash:
0a8536fbadcf04095eaa8dd631dad35235f2029f8b2d5bfcb3448a5b4cf01736
MD5 hash:
fd42101bcd2415e68afa04fa02255878
SHA1 hash:
5db82d75ff7568fc6b4bc6d8d13aedf87df7a0ec
SH256 hash:
7570583507a88122beae60126d30e6ef9a0ecdf6d6e5cbfa5eadfbf2beea1f6f
MD5 hash:
481070cd319071d67812ffc598ebf3a6
SHA1 hash:
8fd7e4efaca5aee63d72265d4373b1bf7bd9c4de
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:AsyncRat
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MAL_AsnycRAT
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:msil_suspicious_use_of_strreverse
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Rule name:SelfExtractingRAR
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Reverse_Run_Key
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:Windows_Trojan_Asyncrat_11a11ba1
Author:Elastic Security
Rule name:win_asyncrat_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research

File information


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

Malspam

AsyncRAT

Executable exe 7570583507a88122beae60126d30e6ef9a0ecdf6d6e5cbfa5eadfbf2beea1f6f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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