MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7245a7dfa3dd83b076608479d0a12c13f01d61b67426b9d71830a9114aab0e1. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7245a7dfa3dd83b076608479d0a12c13f01d61b67426b9d71830a9114aab0e1
SHA3-384 hash: 7fb7d57aaf8847f837968b7a118cded14bcda93b4f3506462dd273c4ae150b8397c7c23c75f722488255cd85821587fa
SHA1 hash: 33c2543e989da81fe9e5c2c2778605d32d2ce287
MD5 hash: 6ed439675d5a0973d0c7b4cb1b748cc2
humanhash: magnesium-jig-cardinal-massachusetts
File name:6ed439675d5a0973d0c7b4cb1b748cc2.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:552'960 bytes
First seen:2022-06-27 08:51:16 UTC
Last seen:2022-06-27 10:03:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:96m1s768vHkT2CXL5blfuNlE5w7J+quBu6y:Z1BCE2W5lfuNe5zqCy
TLSH T1E3C4DF1526597AD6F5376F724C27163A5D036B2E07AE8BDB2E9B13C4196C3CE42BB300
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 8898a2ac1c9486be (8 x AsyncRAT, 2 x SnakeKeylogger)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
247
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/283486/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Running batch commands
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a process from a recently created file
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed wacatac
Link:
https://www.filescan.io/uploads/62b96fef62d792dc5749a3f3/reports/a5c0d89b-19fe-48fa-a7a5-0e8164d8466f/overview
Result
Verdict:
UNKNOWN
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:
gzRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d93bfbad-1333-400d-9b2b-f8c17cf1dce7
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1020351
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
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
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
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 Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 652845 Sample: S3cUtqJCwQ.exe Startdate: 27/06/2022 Architecture: WINDOWS Score: 100 70 Snort IDS alert for network traffic 2->70 72 Malicious sample detected (through community Yara rule) 2->72 74 Antivirus detection for dropped file 2->74 76 12 other signatures 2->76 10 S3cUtqJCwQ.exe 7 2->10         started        14 image.exe 3 2->14         started        process3 file4 60 C:\Users\user\AppData\Roaming\...\bvn.exe, PE32 10->60 dropped 62 C:\Users\user\...\bvn.exe:Zone.Identifier, ASCII 10->62 dropped 64 C:\Users\user\AppData\...\S3cUtqJCwQ.exe.log, ASCII 10->64 dropped 80 Creates an undocumented autostart registry key 10->80 82 Encrypted powershell cmdline option found 10->82 16 S3cUtqJCwQ.exe 6 10->16         started        19 powershell.exe 15 10->19         started        21 S3cUtqJCwQ.exe 10->21         started        23 S3cUtqJCwQ.exe 10->23         started        84 Antivirus detection for dropped file 14->84 86 Multi AV Scanner detection for dropped file 14->86 88 Machine Learning detection for dropped file 14->88 25 powershell.exe 14->25         started        27 image.exe 14->27         started        29 image.exe 14->29         started        signatures5 process6 file7 58 C:\Users\user\AppData\Roaming\image.exe, PE32 16->58 dropped 31 cmd.exe 1 16->31         started        33 cmd.exe 1 16->33         started        36 conhost.exe 19->36         started        38 conhost.exe 25->38         started        process8 signatures9 40 image.exe 31->40         started        43 conhost.exe 31->43         started        45 timeout.exe 1 31->45         started        68 Uses schtasks.exe or at.exe to add and modify task schedules 33->68 47 conhost.exe 33->47         started        49 schtasks.exe 1 33->49         started        process10 signatures11 78 Encrypted powershell cmdline option found 40->78 51 image.exe 40->51         started        54 powershell.exe 40->54         started        process12 dnsIp13 66 185.140.53.131, 49783, 7171 DAVID_CRAIGGG Sweden 51->66 56 conhost.exe 54->56         started        process14
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a7245a7dfa3dd83b076608479d0a12c13f01d61b67426b9d71830a9114aab0e1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-27 07:30:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u4sfu7p2hxmdwb3gbbdz2cqsye7qdvq3m5bgxhlrqmfjcffkwdqq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/220627-ksrmdsbhc2/
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
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
185.140.53.131:7171
Unpacked files
SH256 hash:
2bd0cae6186dfd8641ead46b7624deb041ab49274e51a2653caa6d5d753de6c9
MD5 hash:
62c9ac51d2ce0e9f646d5c51bc2c4905
SHA1 hash:
1cdbb9f73ca8f388ddba2d915496e452166d2b38
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/abfc43ca-b413-467f-9d06-4ad78a18dc0c/
Parent samples :
cf3dab2a4ba21609762dff658b3b6831f2ae5976adfe0aed8f76090d30c7f1b3
a7245a7dfa3dd83b076608479d0a12c13f01d61b67426b9d71830a9114aab0e1
SH256 hash:
5078d768f43514d2bba18a95050a8ebde42800f40ddbc49fa6244fc0772dc487
MD5 hash:
d99e39676bd952aa550d05dbe1965283
SHA1 hash:
605bbff47e75ce5ff4d70e4f382d355a603d3c8b
Link:
https://www.unpac.me/results/abfc43ca-b413-467f-9d06-4ad78a18dc0c/
SH256 hash:
f1a348abc357090f8d8955ac105af0721a5182de64e457a1073a896d87a89167
MD5 hash:
af9a30016486d4ee5ad5a68ddb625176
SHA1 hash:
1961c67d7954cc3601e9f5f575f01647ca578dea
Link:
https://www.unpac.me/results/abfc43ca-b413-467f-9d06-4ad78a18dc0c/
SH256 hash:
a7245a7dfa3dd83b076608479d0a12c13f01d61b67426b9d71830a9114aab0e1
MD5 hash:
6ed439675d5a0973d0c7b4cb1b748cc2
SHA1 hash:
33c2543e989da81fe9e5c2c2778605d32d2ce287
Link:
https://www.unpac.me/results/abfc43ca-b413-467f-9d06-4ad78a18dc0c/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a7245a7dfa3d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a7245a7dfa3dd83b076608479d0a12c13f01d61b67426b9d71830a9114aab0e1

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

AsyncRAT

Executable exe a7245a7dfa3dd83b076608479d0a12c13f01d61b67426b9d71830a9114aab0e1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2239641/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/283486/

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