MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be. 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: 14


Intelligence 14 IOCs 1 YARA 8 File information Comments

SHA256 hash: ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be
SHA3-384 hash: 16a5bb916bd98a2f20de6248aecdf316aadf0f74fbd0d64b6acddea29d5aa9f1608d081625ae1601e1f6a16faea1b5e1
SHA1 hash: d0dd11c51a0a729720616a59c4d45c1d73e5729c
MD5 hash: a40c2bf784b33d54752428c42e28ee6a
humanhash: mexico-early-london-lake
File name:a40c2bf784b33d54752428c42e28ee6a.exe
Download: download sample
Signature AsyncRAT
File size:46'080 bytes
First seen:2021-08-06 23:55:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:Duir1TUEFSuWUow3kmo2qzQwzBNVZGPIMPzjbegX3mEobB5VumF1EBDZ6x:Duir1TUKg2JWlvMP3bhXWhBymF0d6x
Threatray 1'119 similar samples on MalwareBazaar
TLSH T111231B0037E8822BF2BE4F78ADF26145867AF1673603D54A1CC451DB5613FC69A42AFE
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
217.146.88.139:5220

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
217.146.88.139:5220 https://threatfox.abuse.ch/ioc/165998/

Intelligence


File Origin
# of uploads :
1
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
VaLOLRant.exe
Verdict:
Malicious activity
Analysis date:
2021-08-04 05:53:42 UTC
Tags:
trojan rat asyncrat

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

Behaviour
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Sending a UDP request
Creating a process from a recently created file
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun by creating a file
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 460961 Sample: xVuZo1SfPN.exe Startdate: 07/08/2021 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Found malware configuration 2->37 39 Antivirus / Scanner detection for submitted sample 2->39 41 5 other signatures 2->41 7 Bingas.exe 1 2 2->7         started        11 xVuZo1SfPN.exe 7 2->11         started        process3 dnsIp4 33 217.146.88.139, 49722, 49733, 5220 BANDWIDTH-ASGB United Kingdom 7->33 43 Antivirus detection for dropped file 7->43 45 Multi AV Scanner detection for dropped file 7->45 47 Machine Learning detection for dropped file 7->47 29 C:\Users\user\AppData\Roaming\Bingas.exe, PE32 11->29 dropped 31 C:\Users\user\AppData\...\xVuZo1SfPN.exe.log, ASCII 11->31 dropped 14 cmd.exe 1 11->14         started        17 cmd.exe 1 11->17         started        file5 signatures6 process7 signatures8 49 Uses schtasks.exe or at.exe to add and modify task schedules 14->49 19 conhost.exe 14->19         started        21 schtasks.exe 1 14->21         started        23 Bingas.exe 3 17->23         started        25 conhost.exe 17->25         started        27 timeout.exe 1 17->27         started        process9
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2021-08-04 21:35:09 UTC
AV detection:
35 of 46 (76.09%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat rat suricata
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Malware Config
C2 Extraction:
217.146.88.139:5220
Unpacked files
SH256 hash:
ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be
MD5 hash:
a40c2bf784b33d54752428c42e28ee6a
SHA1 hash:
d0dd11c51a0a729720616a59c4d45c1d73e5729c
Detections:
win_asyncrat_w0
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:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
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:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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.

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