MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0f9616033c3e2c3df40e50ccf9cbe8ffb0954569acb29f9bfb5e18d7c431254d. 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 13 File information Comments

SHA256 hash: 0f9616033c3e2c3df40e50ccf9cbe8ffb0954569acb29f9bfb5e18d7c431254d
SHA3-384 hash: 76cd0bc2a4a440c84b74735914fa2c79ac0edc6d8a5528d741dff2caa3adaf36ee6dbb28be15485cd4d8c590035edfe9
SHA1 hash: 858c4fbf7be9b57538439ce6b9c69d92803d4719
MD5 hash: 1cf38074d1eec7ff196912f6b2d8c0c1
humanhash: november-fifteen-beer-winter
File name:1cf38074d1eec7ff196912f6b2d8c0c1.exe
Download: download sample
Signature AsyncRAT
File size:89'088 bytes
First seen:2023-03-17 09:12:33 UTC
Last seen:2023-03-17 09:29:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 1536:qgboTbL7aqSsvPCMjZHjmP8ibPFhFFbgoq1Pb3phQVvshbg+25gcp:qguf7aqSNeZHMVLbgoq1Pb3phQVvshb0
TLSH T17293090B96947DEEE42B5BB36D5B9F4DA6B8B9136D0ACB052261474F10620CEF203DD3
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)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
206
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
1cf38074d1eec7ff196912f6b2d8c0c1.exe
Verdict:
Malicious activity
Analysis date:
2023-03-17 09:13:00 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
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Running batch commands
Launching a process
Creating a file
Сreating synchronization primitives
Sending an HTTP GET request
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Injects a PE file into a foreign processes
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
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 829376 Sample: eXrgRyOED6.exe Startdate: 18/03/2023 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 5 other signatures 2->49 7 SecurityHelath.exe 3 2->7         started        10 eXrgRyOED6.exe 5 2->10         started        13 SecurityHelath.exe 2 2->13         started        15 SecurityHelath.exe 2 2->15         started        process3 file4 53 Antivirus detection for dropped file 7->53 55 Multi AV Scanner detection for dropped file 7->55 57 Machine Learning detection for dropped file 7->57 17 RegAsm.exe 3 7->17         started        37 C:\Users\user\AppData\...\SecurityHelath.exe, PE32 10->37 dropped 39 C:\Users\user\AppData\...\eXrgRyOED6.exe.log, ASCII 10->39 dropped 59 Writes to foreign memory regions 10->59 61 Allocates memory in foreign processes 10->61 63 Injects a PE file into a foreign processes 10->63 19 cmd.exe 1 10->19         started        22 powershell.exe 1 22 10->22         started        24 RegAsm.exe 2 10->24         started        27 RegAsm.exe 2 13->27         started        29 RegAsm.exe 2 15->29         started        signatures5 process6 dnsIp7 51 Uses schtasks.exe or at.exe to add and modify task schedules 19->51 31 conhost.exe 19->31         started        33 schtasks.exe 1 19->33         started        35 conhost.exe 22->35         started        41 217.64.31.3, 8437 BAKINTER-ASBakinternetISPAzerbaijanAZ Azerbaijan 24->41 signatures8 process9
Threat name:
ByteCode-MSIL.Hacktool.ResInject
Status:
Malicious
First seen:
2023-03-15 11:47:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
29 of 39 (74.36%)
Threat level:
  1/5
Verdict:
malicious
Label(s):
asyncrat
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:defendersmartscren persistence rat
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
217.64.31.3:8437
Unpacked files
SH256 hash:
505f991758d80fcea2477e3ae04e50ef7bf571065aea7a95ac3d4a3f2e3d1f0c
MD5 hash:
e8f756cf5566a5ed1a82c89f36350c35
SHA1 hash:
8656c016e27055f5135faf65b3ca742a08e57b22
Detections:
AsyncRAT win_asyncrat_w0
SH256 hash:
0f9616033c3e2c3df40e50ccf9cbe8ffb0954569acb29f9bfb5e18d7c431254d
MD5 hash:
1cf38074d1eec7ff196912f6b2d8c0c1
SHA1 hash:
858c4fbf7be9b57538439ce6b9c69d92803d4719
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:pe_imphash
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: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.

Web download

AsyncRAT

Executable exe 0f9616033c3e2c3df40e50ccf9cbe8ffb0954569acb29f9bfb5e18d7c431254d

(this sample)

  
Delivery method
Distributed via web download

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