MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6ea95e85a279f9f842504b80c85ec920aeaefab99ebc377709a1f4317929ccef. 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: 16


Intelligence 16 IOCs YARA 12 File information Comments
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SHA256 hash: 6ea95e85a279f9f842504b80c85ec920aeaefab99ebc377709a1f4317929ccef
SHA3-384 hash: ea0e3caa854438ec3a8c6c0eb30a6b520b69e00bc274dc41cfface497c4b9ebc1d2dd3ed80322cde73b2dfc18e3b680e
SHA1 hash: 49436764140a7bfcd332bc91ca141706d0519a88
MD5 hash: c19b1914fdfb5f4dc77afef42e967909
humanhash: single-oranges-carolina-california
File name:file
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:46'592 bytes
First seen:2023-01-20 13:53:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:Zu1a71T3EiJfWUzuydmo2qzDKjGKG6PIyzjbFgX3i3w0HpLofac5BDZgjS:Zu1a71T3xN2SKYDy3bCXS3/HpUagdiS
TLSH T10F2329003BE9822BF2BE4F789DF26145467EF1A33603D55E1CC4519B5613BC68A426FE
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 jstrosch
Tags:.NET AsyncRAT exe MSIL

Intelligence

File Origin
# of uploads :
1
# of downloads :
197
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-20 14:03:05 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/841a6f8d-c772-4b42-877e-d9db8fe4b273

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
Win.Packed.Razy-9625918-0
Create hunting rule

Win.Packed.AsyncRAT-9856570-1
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Sending a custom TCP request
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
Creating a process from a recently created file
Creating a window
DNS request
Searching for the window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
80%
Tags:
anti-vm asyncrat njrat packed rat
Link:
https://www.filescan.io/uploads/63ca9d0289bd67c10fd8d667/reports/52328066-6fc4-47f6-b546-6ed65564ad91/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/6f9d57c7-3e6d-4a40-a7ea-bcc1bba86f88
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1155526
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Protects its processes via BreakOnTermination flag
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: 788258 Sample: file.exe Startdate: 20/01/2023 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 7 other signatures 2->44 7 file.exe 7 2->7         started        11 Nvidia.exe 3 2->11         started        process3 file4 30 C:\Users\user\AppData\Roaming30vidia.exe, PE32 7->30 dropped 32 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 7->32 dropped 48 Protects its processes via BreakOnTermination flag 7->48 50 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->50 13 cmd.exe 1 7->13         started        15 cmd.exe 1 7->15         started        52 Antivirus detection for dropped file 11->52 54 Multi AV Scanner detection for dropped file 11->54 56 Machine Learning detection for dropped file 11->56 signatures5 process6 signatures7 18 Nvidia.exe 15 2 13->18         started        22 conhost.exe 13->22         started        24 timeout.exe 1 13->24         started        58 Uses schtasks.exe or at.exe to add and modify task schedules 15->58 26 conhost.exe 15->26         started        28 schtasks.exe 1 15->28         started        process8 dnsIp9 34 pastebin.com 104.20.68.143, 443, 49732, 49766 CLOUDFLARENETUS United States 18->34 36 async.sytes.net 151.75.44.137, 6606 ASN-WINDTREIUNETEU Italy 18->36 46 Protects its processes via BreakOnTermination flag 18->46 signatures10
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6ea95e85a279f9f842504b80c85ec920aeaefab99ebc377709a1f4317929ccef/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-01-20 13:54:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n2uv5bncph47qqsqjoamqxwjecxk56vzt26do5yjuh2dc6jjztxq._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/230120-q7jszsga3t/
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
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Unpacked files
SH256 hash:
6ea95e85a279f9f842504b80c85ec920aeaefab99ebc377709a1f4317929ccef
MD5 hash:
c19b1914fdfb5f4dc77afef42e967909
SHA1 hash:
49436764140a7bfcd332bc91ca141706d0519a88
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
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Link:
https://www.unpac.me/results/608a40a6-8bec-47f0-9617-0657669ea7ea/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6ea95e85a279/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/6ea95e85a279f9f842504b80c85ec920aeaefab99ebc377709a1f4317929ccef

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:AsyncRat_Detection_Dec_2022
Create hunting rule
Author:Potatech
Description:AsyncRat
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: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 6ea95e85a279f9f842504b80c85ec920aeaefab99ebc377709a1f4317929ccef

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/354956/

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