MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4531d8af87a523a1664264ed8417741d154cdeeebd2c1b77419f18e530722c77. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4531d8af87a523a1664264ed8417741d154cdeeebd2c1b77419f18e530722c77
SHA3-384 hash: bcd1975bbe751e523aab64b8c21e27edb3d43875dcdb1d2f05af3cfc66bc3a286a5e5f3f83aac936f818d84dccc36148
SHA1 hash: 9579ea875a151e111d146793230b623408fb9411
MD5 hash: f79eb6d7d7465780931afa655a0de29c
humanhash: oklahoma-grey-mountain-edward
File name:f79eb6d7d7465780931afa655a0de29c.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:385'536 bytes
First seen:2021-09-07 06:01:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 6144:9rCobKEnoyYtOj+it7+2NsRHrt7gGBGeG9k9QRCrrRzecE/I+I:9uEnoyYwF7jSRHZ7g8fwktrrZzEw3
Threatray 84 similar samples on MalwareBazaar
TLSH T17684B0909EEFCECEC26F723FA01A0C8614DED3060757A6E58B064E35B3952239D565E3
dhash icon 0cd2c1c4d0c1f20c (18 x AsyncRAT, 9 x QuasarRAT, 8 x RedLineStealer)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f79eb6d7d7465780931afa655a0de29c.exe
Verdict:
Malicious activity
Analysis date:
2021-09-07 06:09:23 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/bf21207a-6b8b-4e04-9463-2c4f160a09c3

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/185808/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
DNS request
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ae09472b-d00a-4bbc-9aac-94317fd22f7a
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/846262
Signature
.NET source code contains potential unpacker
Bypasses PowerShell execution policy
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Script Execution From Temp Folder
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Suspicious powershell command line found
Uses powershell Test-Connection to delay payload execution;
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 478690 Sample: 4lVtp4IR7i.exe Startdate: 07/09/2021 Architecture: WINDOWS Score: 92 66 youtube.com 2->66 68 time.google.com 2->68 70 7 other IPs or domains 2->70 92 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->92 94 Multi AV Scanner detection for dropped file 2->94 96 Multi AV Scanner detection for submitted file 2->96 98 4 other signatures 2->98 9 4lVtp4IR7i.exe 1 8 2->9         started        14 nvsphelper1.exe 2->14         started        16 nvsphelper1.exe 2->16         started        signatures3 process4 dnsIp5 86 192.168.2.1 unknown unknown 9->86 56 C:\Users\user\AppData\...\nvsphelper1.exe, PE32 9->56 dropped 58 C:\Users\user\AppData\...\4lVtp4IR7i.exe, PE32 9->58 dropped 60 C:\Users\...\nvsphelper1.exe:Zone.Identifier, ASCII 9->60 dropped 64 2 other malicious files 9->64 dropped 102 Uses powershell Test-Connection to delay payload execution; 9->102 18 4lVtp4IR7i.exe 9->18         started        23 powershell.exe 18 9->23         started        25 powershell.exe 20 9->25         started        31 3 other processes 9->31 62 C:\Users\user\AppData\...\nvsphelper1.exe, PE32 14->62 dropped 27 powershell.exe 14->27         started        29 powershell.exe 14->29         started        file6 signatures7 process8 dnsIp9 72 37.0.8.220, 151, 161, 49715 WKD-ASIE Netherlands 18->72 52 C:\Users\user\AppData\Local\Temp\urwzrv.exe, PE32 18->52 dropped 54 C:\Users\user\AppData\Local\Temp\sdttrp.exe, PE32+ 18->54 dropped 100 Multi AV Scanner detection for dropped file 18->100 33 cmd.exe 18->33         started        76 6 other IPs or domains 23->76 36 conhost.exe 23->36         started        74 dns.google 8.8.4.4 GOOGLEUS United States 25->74 78 4 other IPs or domains 25->78 38 conhost.exe 25->38         started        80 4 other IPs or domains 27->80 40 conhost.exe 27->40         started        82 3 other IPs or domains 29->82 84 12 other IPs or domains 31->84 42 conhost.exe 31->42         started        44 conhost.exe 31->44         started        46 conhost.exe 31->46         started        file10 signatures11 process12 signatures13 88 Suspicious powershell command line found 33->88 90 Bypasses PowerShell execution policy 33->90 48 conhost.exe 33->48         started        50 powershell.exe 33->50         started        process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4531d8af87a523a1664264ed8417741d154cdeeebd2c1b77419f18e530722c77/
Threat name:
Win32.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-09-06 23:49:28 UTC
AV detection:
11 of 41 (26.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iuy5rl4huur2czscmtwyif3udukuzxxoxuwbw52bt4mokmdsfr3q._file
Verdict:
malicious
Similar samples:
503daa99af5a571e42bba412296ce3f6e086ce203359cb27f7d04442d10b2999
AsyncRAT
548b9ca933b2acc83144abcb354fadfadc4e15861c7623352be55faea64851a4
AsyncRAT
5d3d32ee309bc3687631ad92beab3b5d3490318b969d4e9ba72d6b1c985ffe87
AsyncRAT
60333b9138bb30f9a4d5d48a699ad137fe46646b276b55e1dbec71f8cf1b1d2c
AsyncRAT
6ffa008d9c18433dfb729075105f7837874da4b96d22c7718f360558f9aeaa0a
AsyncRAT
f7873cf1b6200ab714ca6d6ff929fc4192d91a1cfc6d685cc734d8f1decb691d
AsyncRAT
+ 74 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat persistence rat
Link:
https://tria.ge/reports/210907-grg5safbgl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Unpacked files
SH256 hash:
1bdaeaf7932d9afa31b3209f227c5fd29f217e23beafcd50c542201422bf264b
MD5 hash:
3e85b90a44463f681bf60a4eb0e8834d
SHA1 hash:
3345be0b3f05415090355fe5e0b2000b7f49625a
Link:
https://www.unpac.me/results/ce10eecc-53b5-4dab-aae1-7fd1459eb2a1/
SH256 hash:
c5a7ef9f417a3fe8f13f67fd40a305f68744ba8e08d6ac6818f854a509c8464e
MD5 hash:
d1126367133e41031409139717a0591d
SHA1 hash:
31e9535964c4e71d3dbb8ad360e77d265c60dc3c
Link:
https://www.unpac.me/results/ce10eecc-53b5-4dab-aae1-7fd1459eb2a1/
SH256 hash:
4531d8af87a523a1664264ed8417741d154cdeeebd2c1b77419f18e530722c77
MD5 hash:
f79eb6d7d7465780931afa655a0de29c
SHA1 hash:
9579ea875a151e111d146793230b623408fb9411
Link:
https://www.unpac.me/results/ce10eecc-53b5-4dab-aae1-7fd1459eb2a1/
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/4531d8af87a523a1664264ed8417741d154cdeeebd2c1b77419f18e530722c77

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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 4531d8af87a523a1664264ed8417741d154cdeeebd2c1b77419f18e530722c77

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1519058/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/185808/

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