MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f7a97242c9531da8399e69efe414475bf2874786a4e96df3ec7cd453e0fb6261. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f7a97242c9531da8399e69efe414475bf2874786a4e96df3ec7cd453e0fb6261
SHA3-384 hash: 5f42446ad01fc4fc7a62338e670f9ab1313f91bad7d364f47ae2d51f6672bc61cc62401914890afb7d35fcbc37b341d7
SHA1 hash: ca5dd35f8d5a0900703d88359528f0f2444ae795
MD5 hash: 681b82d3508d276e7501e3b6acc5f8e0
humanhash: failed-sodium-island-avocado
File name:681b82d3508d276e7501e3b6acc5f8e0.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:270'336 bytes
First seen:2023-04-09 07:41:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:uaRBE6XLxiJ1UMnX5X8KMFyAO8nlRJ+KrDIteI:ztLxu1LXtKpvlC6DItD
Threatray 3'048 similar samples on MalwareBazaar
TLSH T1E6448C8C755476DFC867C476DEA86C74A764387B830F8213A05729AAAE0DA83CF151F3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 1a482cc6f0588c88 (1 x AsyncRAT)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
324
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
Takvim.xls
Verdict:
Malicious activity
Analysis date:
2023-04-09 07:03:32 UTC
Tags:
macros macros-on-open asyncrat
Link:
https://app.any.run/tasks/f375e7b6-beda-4a6f-9b17-f9d32e4970da

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/381093/
Detection(s):
PUA.Win.Packed.ConfuserEx-6582917-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
DNS request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
confuserex net packed packed quasar
Link:
https://www.filescan.io/uploads/64326c4ddb2ad5a3310f2bdf/reports/1f08d552-9eb1-4fa2-b1bf-f898f3fdd9e8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/f7a97242c9531da8399e69efe414475bf2874786a4e96df3ec7cd453e0fb6261
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/600f27ef-ca62-4266-a1e7-a22384d05b27
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1210846
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Snort IDS alert for network traffic
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 843759 Sample: OUx0WXieP1.exe Startdate: 09/04/2023 Architecture: WINDOWS Score: 100 59 Snort IDS alert for network traffic 2->59 61 Multi AV Scanner detection for domain / URL 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 8 other signatures 2->65 11 OUx0WXieP1.exe 1 2->11         started        15 crsi.exe 2->15         started        process3 file4 55 C:\Users\user\AppData\...\OUx0WXieP1.exe.log, ASCII 11->55 dropped 71 Injects a PE file into a foreign processes 11->71 73 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->73 17 OUx0WXieP1.exe 6 11->17         started        75 Multi AV Scanner detection for dropped file 15->75 77 Machine Learning detection for dropped file 15->77 20 crsi.exe 15->20         started        signatures5 process6 file7 53 C:\Users\user\AppData\Roaming\crsi.exe, PE32 17->53 dropped 22 cmd.exe 1 17->22         started        24 cmd.exe 1 17->24         started        process8 signatures9 27 crsi.exe 1 22->27         started        30 conhost.exe 22->30         started        32 timeout.exe 1 22->32         started        67 Uses schtasks.exe or at.exe to add and modify task schedules 24->67 34 conhost.exe 24->34         started        36 schtasks.exe 1 24->36         started        process10 signatures11 69 Injects a PE file into a foreign processes 27->69 38 crsi.exe 2 5 27->38         started        process12 dnsIp13 57 mooroopecamroy.sytes.net 45.88.67.9, 3306, 49706, 49708 LVLT-10753US Bulgaria 38->57 41 cmd.exe 38->41         started        43 cmd.exe 38->43         started        process14 process15 45 conhost.exe 41->45         started        47 schtasks.exe 41->47         started        49 conhost.exe 43->49         started        51 timeout.exe 43->51         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f7a97242c9531da8399e69efe414475bf2874786a4e96df3ec7cd453e0fb6261/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-04-09 07:42:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=66uxeqwjkmo2qom6nhx6ifchlpzior4gutuw347mptkfhyh3mjqq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0b8a5cbe236a7057a2904f18480b85ce9b59b891c0a1a041516248d35760744d
AsyncRAT
1299373ec40fc1f3f16957338574a9ad51a94e62220cc8c08f1ad81dee443544
AsyncRAT
16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a
AsyncRAT
1a9e9deb92ea9d2cd35f94b5b0cfaecfd353fe71d886aa0ee4da2d7b454427aa
AsyncRAT
2799478f81991ca4ba86ccf7a234f95199cf3743f6a1112f20666b6ce104e557
AsyncRAT
438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
AsyncRAT
6b5727c6490854539140bc2414d48fbed9e557ddc48b875ed80626d1f6d68988
AsyncRAT
bcf7571a4d9b25fabdc2d6120b1b2d7bd8446ea2bc3a5da1d4127954920067de
AsyncRAT
ceddcfa72226e91f7435facafe6631d1385ca4d246d242d5136ac4e9462b8611
AsyncRAT
ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be
AsyncRAT
+ 3'038 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:rnock rat
Link:
https://tria.ge/reports/230409-jjnzgahh96/
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
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
mooroopecamroy.sytes.net:3306
Unpacked files
SH256 hash:
567412d73b7a1894c7a1f542aa1559fd4c92a210b9a3defe92722b4d4f866ff4
MD5 hash:
7aafaad7a907ac7b1a00d0cfc7efe55e
SHA1 hash:
a490d425e95af30eda3621ce44fddd612b71d7f7
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/a86a4ea0-921c-497e-9d6d-d06f6a99b40c/
Parent samples :
36972f2b95dc24bfcff41caf8ebccab00d1beb68405a020a42cfc18d2c2dc2d9
835e6c0778bbbb27cc8127ee2590009c97ca0bee3bc912b144fbe0106c6b5ea6
f7a97242c9531da8399e69efe414475bf2874786a4e96df3ec7cd453e0fb6261
SH256 hash:
f7a97242c9531da8399e69efe414475bf2874786a4e96df3ec7cd453e0fb6261
MD5 hash:
681b82d3508d276e7501e3b6acc5f8e0
SHA1 hash:
ca5dd35f8d5a0900703d88359528f0f2444ae795
Link:
https://www.unpac.me/results/a86a4ea0-921c-497e-9d6d-d06f6a99b40c/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f7a97242c953/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/f7a97242c9531da8399e69efe414475bf2874786a4e96df3ec7cd453e0fb6261

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:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
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:msil_suspicious_use_of_strreverse
Create hunting rule
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
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:Windows_Trojan_Asyncrat_11a11ba1
Create hunting rule
Author:Elastic Security
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
Rule name:XWorm_Hunter
Create hunting rule
Author:Potato

File information

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

Web download

AsyncRAT

Executable exe f7a97242c9531da8399e69efe414475bf2874786a4e96df3ec7cd453e0fb6261

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2603266/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/381093/

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