MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b62fc62a03e4d6c0eac25a8b104d8064288fdc5665ddc19ba55ed520ab9f2827. 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 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b62fc62a03e4d6c0eac25a8b104d8064288fdc5665ddc19ba55ed520ab9f2827
SHA3-384 hash: 38ac9256147407ae261dcb75a54f40c1db30ffb870b530d18fda99947dac1971edd1310110d052f050202a59d9ec9c1f
SHA1 hash: 7a446b124fc3fbf86ecc7b8459a6ddd03a10bbdb
MD5 hash: 6ee2b1661840f3cb6e3279761d81b892
humanhash: mars-equal-south-double
File name:Steal.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:75'776 bytes
First seen:2023-07-31 15:11:19 UTC
Last seen:2023-07-31 15:11:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'450 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 1536:bUCQcx7RjCnGPMV5lxrEL8UIvH1bhwsLP7CQzc+LVclN:bUDcx7pMGPMVVFVH1bhRjCQXBY
Threatray 873 similar samples on MalwareBazaar
TLSH T1C4734B013BD88D26E2AE47B9ACF252074EF4D5576512CE5E3CC840CD6A67BC58A037EE
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter Anonymous
Tags:AgentTesla AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
363
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
Steal.exe
Verdict:
Malicious activity
Analysis date:
2023-07-31 15:11:56 UTC
Tags:
asyncrat trojan rat remote
Link:
https://app.any.run/tasks/915ad8d3-d2a0-4542-96a3-8809866c42b2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/439452/
Detection(s):
Win.Packed.Razy-9807129-0
Create hunting rule

Win.Malware.Generickdz-9865912-0
Create hunting rule

Win.Trojan.AsyncRAT-9914220-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Creating a file in the %AppData% directory
Running batch commands
Creating a process with a hidden window
Creating a file in the %temp% directory
Creating a file
Launching a process
Sending a custom TCP request
Creating a process from a recently created file
Creating a window
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Setting a global event handler for the keyboard
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm configsecuritypolicy evasive hacktool lolbin mpcmdrun msconfig msiexec njrat packed rat regedit replace schtasks
Link:
https://www.filescan.io/uploads/64c7cf444e8e3d763476a808/reports/5af22ab2-0abc-43c2-b664-82f006c79364/overview
Verdict:
Malicious
Labled as:
Dacic.6C2EA08B.A.Generic
Link:
https://www.hybrid-analysis.com/sample/b62fc62a03e4d6c0eac25a8b104d8064288fdc5665ddc19ba55ed520ab9f2827
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fd03fbd8-b244-4677-9c8d-42a576eba667
Result
Threat name:
AsyncRAT, DcRat, VenomRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1283267
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
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
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 AsyncRAT
Yara detected DcRat
Yara detected VenomRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1283267 Sample: Steal.exe Startdate: 31/07/2023 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 9 other signatures 2->41 7 WindowsCleaner.exe 4 2 2->7         started        11 Steal.exe 9 2->11         started        process3 dnsIp4 33 147.185.221.16, 10735, 49697, 49699 SALSGIVERUS United States 7->33 43 Antivirus detection for dropped file 7->43 45 Multi AV Scanner detection for dropped file 7->45 47 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->47 49 Machine Learning detection for dropped file 7->49 29 C:\Users\user\AppData\...\WindowsCleaner.exe, PE32 11->29 dropped 31 C:\Users\user\AppData\Local\...\Steal.exe.log, CSV 11->31 dropped 14 cmd.exe 1 11->14         started        17 cmd.exe 1 11->17         started        file5 signatures6 process7 signatures8 51 Uses schtasks.exe or at.exe to add and modify task schedules 14->51 19 conhost.exe 14->19         started        21 schtasks.exe 1 14->21         started        23 WindowsCleaner.exe 3 17->23         started        25 conhost.exe 17->25         started        27 timeout.exe 1 17->27         started        process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b62fc62a03e4d6c0eac25a8b104d8064288fdc5665ddc19ba55ed520ab9f2827/
Threat name:
Win32.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-07-31 15:12:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wyx4mkqd4tlmb2wclkfratmamqui7xcwmxo4dg5fl3ksbk47fatq._file
Verdict:
malicious
Similar samples:
3dbfc85922adcc72d86d8c50d0e027efeb71bc9b0b4f8c7bba7be5348a7d0d5d
AsyncRAT
565f27efbfaabc879f74e800abdb63f4ad46d49b654927a551a8a6cd17be5ac1
AsyncRAT
800d7d569bde7e5f450e1848e54aa47df0811d7dcb5c338c0cc311b8f55cb9c5
AsyncRAT
b0e1d8b8115f50b5e89ad950bb7f9d6df0c540c3eb8706656de8c3eb8992a690
AsyncRAT
b79718f59f3d7d72a416fe00c3ab3477b43282981e69f9cf5426b2c8012423c1
AsyncRAT
bafb79c0260edbcb4a9d78aa5d0a2e0198c4d86b097c1118c732add640d237c0
AsyncRAT
c2cda600256314b688cf195f809356e2592ba8df9de9c2b1a117a0ee26ccfa28
AsyncRAT
e0e267a1da22b796f4f8a7b84a81d0f0a461183cdc03d267a75e34d9fc497ccd
AsyncRAT
+ 863 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default persistence rat spyware stealer
Link:
https://tria.ge/reports/230731-sk614shh6w/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Enumerates connected drives
Executes dropped EXE
Reads user/profile data of web browsers
Modifies Installed Components in the registry
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
147.185.221.16:10735
Unpacked files
SH256 hash:
b62fc62a03e4d6c0eac25a8b104d8064288fdc5665ddc19ba55ed520ab9f2827
MD5 hash:
6ee2b1661840f3cb6e3279761d81b892
SHA1 hash:
7a446b124fc3fbf86ecc7b8459a6ddd03a10bbdb
Detections:
VenomRat
Create hunting rule
Link:
https://www.unpac.me/results/69f1cb40-c018-47e3-94ac-4e111327ec95/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b62fc62a03e4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b62fc62a03e4d6c0eac25a8b104d8064288fdc5665ddc19ba55ed520ab9f2827

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:AcRat
Create hunting rule
Author:Nikos 'n0t' Totosis
Description:AcRat Payload (based on AsyncRat)
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
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

File information

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

Web download

AsyncRAT

Executable exe b62fc62a03e4d6c0eac25a8b104d8064288fdc5665ddc19ba55ed520ab9f2827

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/439452/

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