MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033. 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: 13


Intelligence 13 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033
SHA3-384 hash: 1ce52661864d6f9bbe524592c72d9284ed0bd12a30627dbb2010db8d7450976ea4e6fa7565249e85cc20482584e3757b
SHA1 hash: 75fd74fffc8a9da0ef33dce2a616fd2424e41b86
MD5 hash: 47d2d449ec519d7d24feafff8088735f
humanhash: triple-winner-twelve-utah
File name:47d2d449ec519d7d24feafff8088735f
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:1'742'848 bytes
First seen:2022-09-29 04:23:38 UTC
Last seen:2023-08-27 08:47:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:Bn1MHQ7hZjEnBmMYYsB3J0zNMESsm/r8REOuPOEkU1johR:1NZjEnBmMAJGNusYr8REOuP3kUZohR
Threatray 2'170 similar samples on MalwareBazaar
TLSH T1DB85CF896B539D87C1212B3945F6E33C10B48F907A12DB13B9AAFA573F327489D446CE
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e0e0c8c8ccccc8e0 (1 x AsyncRAT, 1 x RedLineStealer)
Reporter zbetcheckin
Tags:32 AsyncRAT exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
342
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe
Verdict:
Malicious activity
Analysis date:
2022-09-29 04:42:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/bc816354-da20-4a4f-9a9e-72d2f36ea112

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/314591/
Detection(s):
SecuriteInfo.com.Variant.Barys.875.6690.25993.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Enabling autorun
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
asyncrat barys packed
Link:
https://www.filescan.io/uploads/63351de3896404d760d7789f/reports/5cdbc726-62ce-4b01-aaf6-3294f40cc7ac/overview
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:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0eb2dc7a-c755-4dcc-af0b-0a505fbd2343
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1079734
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 712291 Sample: ArYxrzuANr.exe Startdate: 29/09/2022 Architecture: WINDOWS Score: 100 72 Snort IDS alert for network traffic 2->72 74 Multi AV Scanner detection for domain / URL 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 12 other signatures 2->78 11 ArYxrzuANr.exe 1 6 2->11         started        process3 file4 60 C:\Users\user\AppData\Roaming\...\PCI-GPU.exe, PE32 11->60 dropped 62 C:\Users\user\...\PCI-GPU.exe:Zone.Identifier, ASCII 11->62 dropped 64 C:\Users\user\AppData\...\ArYxrzuANr.exe.log, ASCII 11->64 dropped 94 Creates an undocumented autostart registry key 11->94 96 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->96 98 Writes to foreign memory regions 11->98 100 Injects a PE file into a foreign processes 11->100 15 RegAsm.exe 16 6 11->15         started        signatures5 process6 dnsIp7 66 193.142.146.212, 49697, 49699, 49700 HOSTSLICK-GERMANYNL Netherlands 15->66 68 update-checker-status.cc 84.32.190.34, 49696, 80 VUB-ASIT Lithuania 15->68 70 192.168.2.1 unknown unknown 15->70 50 C:\Users\user\AppData\Local\Temp\qzkbkz.exe, PE32 15->50 dropped 52 C:\Users\user\AppData\Local\Temp\kciatb.exe, PE32+ 15->52 dropped 54 C:\Users\user\AppData\Local\Temp\cpwvsg.exe, PE32 15->54 dropped 19 cmd.exe 15->19         started        22 cmd.exe 1 15->22         started        24 cmd.exe 1 15->24         started        file8 process9 signatures10 80 Suspicious powershell command line found 19->80 26 powershell.exe 19->26         started        28 conhost.exe 19->28         started        82 Bypasses PowerShell execution policy 22->82 30 powershell.exe 12 22->30         started        32 conhost.exe 22->32         started        34 powershell.exe 12 24->34         started        36 conhost.exe 24->36         started        process11 process12 38 cpwvsg.exe 26->38         started        42 kciatb.exe 30->42         started        44 qzkbkz.exe 3 34->44         started        file13 56 C:\Users\user\AppData\Local\...\gcwvw.exe, PE32 38->56 dropped 84 Antivirus detection for dropped file 38->84 86 Multi AV Scanner detection for dropped file 38->86 88 Machine Learning detection for dropped file 38->88 92 2 other signatures 38->92 58 C:\Users\user\AppData\Roaming\Meow\Meow.exe, PE32+ 42->58 dropped 90 Encrypted powershell cmdline option found 44->90 46 powershell.exe 44->46         started        signatures14 process15 process16 48 conhost.exe 46->48         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033/
Threat name:
ByteCode-MSIL.Downloader.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2022-09-27 07:59:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
23 of 26 (88.46%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cbrrigtrvhz3pcguxy376jovfszj67wicbp33c4qckihhz4m2azq._file
Verdict:
malicious
Similar samples:
33ae058a8ad12ca2348bc53edd64d6340a15bb1e34b264f4c204649823beac15
AsyncRAT
536fea2266a433d87f53805bedbfc4bef9aaf0acbc3a25572718adbc99ee32ca
AsyncRAT
9223c80aeecd281a7da24d546a0f6a07cf1b8cae4aca2f1ce300c291b81634c2
AsyncRAT
939bba5ce3379295f136d79a79db16070cc18b4eb9445e5d49457f6ba4d25afa
AsyncRAT
acb0ec13d308fba63fbc5fd12a66d4f72e61692bcb04bd051ec7844aed438e3e
AsyncRAT
b1d0054cc04e1f882313bfe5ecbcae1dc58245267311cf1eafa8f3d531687dba
AsyncRAT
e5a251cffb07c8b0888d245103e4d21dbc69bc04ebbfb2b4547e76f1dfb25197
AsyncRAT
e884ebd5b43851db988df31c6eb3d7e8152472f9595f77a9d9c77c6e0ec0b9c7
AsyncRAT
+ 2'160 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat persistence rat
Link:
https://tria.ge/reports/220929-e1dslsaggq/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Modifies WinLogon for persistence
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0dddcd81-f0db-4365-8415-33c5681079d3
Unpacked files
SH256 hash:
788209b8e571dea7d67590feb813a545aec716914f3c79652834e0150f1ef623
MD5 hash:
fa8bf173a7dfd4ec22e968f0700070f3
SHA1 hash:
9144b956b3202bcb102ca7e098927c6d8d6ea862
Link:
https://www.unpac.me/results/fb51f2e0-c506-42c5-911a-f4ae7a928bb3/
SH256 hash:
d0a9ce9e9cbcbe26d641f19cb3c04c1fcbddafb11740aae4badd91e890fcff65
MD5 hash:
9626f419bcb79af6bde6601b870b3bd4
SHA1 hash:
77519add44bd29e12897e1c037d57a57a5d9827c
Link:
https://www.unpac.me/results/fb51f2e0-c506-42c5-911a-f4ae7a928bb3/
SH256 hash:
1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033
MD5 hash:
47d2d449ec519d7d24feafff8088735f
SHA1 hash:
75fd74fffc8a9da0ef33dce2a616fd2424e41b86
Link:
https://www.unpac.me/results/fb51f2e0-c506-42c5-911a-f4ae7a928bb3/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1063141a71a9/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/1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033

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
Create hunting rule
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Create hunting rule
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 1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2322920/
Cape
Cape
https://www.capesandbox.com/analysis/314591/

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