MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0255bd8a15446c39c4c32dceab9116c541583938022f13d3846012b9ee4c65f. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a0255bd8a15446c39c4c32dceab9116c541583938022f13d3846012b9ee4c65f
SHA3-384 hash: 3f29e3e5cbdeb32efdf5987a6c2e68b342ff165378ec71bf8e69b5976724e1aa5120eb2689f0552067f61ceeadfb4a96
SHA1 hash: 0e8d69936b68f66f5cf795b3318b0c13d62c54ac
MD5 hash: 5da85385325f5290a7fae0141809a615
humanhash: lamp-bacon-enemy-quiet
File name:SKM-210221.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:17'920 bytes
First seen:2022-01-24 20:46:03 UTC
Last seen:2022-01-24 23:04:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:XJ63RLwbqacmqLULUYSbSQWyg157AgOOHS:c3FwbqbYUxxWtOOHS
Threatray 1'280 similar samples on MalwareBazaar
TLSH T1CC82C90FB598EEF6CDA73EFA5C3526014254FF1298315A8A1046320AFA7F7501590FEA
File icon (PE):PE icon
dhash icon a48c8ca0a08a8e8a (4 x AsyncRAT, 1 x RaccoonStealer, 1 x QNodeService)
Reporter cocaman
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/222070/
Detection(s):
SecuriteInfo.com.W32.MSIL_Agent.IO.genEldorado.29802.27810.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cmd.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/61ef10130f8c757253e384df/reports/0768dddd-7f90-487c-9b6f-d70d20f99dbe/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/868adcab-165c-4b9e-a71e-17bc90fd38e7
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/926625
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 559103 Sample: SKM-210221.exe Startdate: 24/01/2022 Architecture: WINDOWS Score: 100 61 Multi AV Scanner detection for domain / URL 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 Yara detected AntiVM3 2->65 67 7 other signatures 2->67 7 SKM-210221.exe 16 7 2->7         started        12 Chrome.exe 14 3 2->12         started        14 Chrome.exe 3 2->14         started        process3 dnsIp4 57 transfer.sh 144.76.136.153, 443, 49760, 49828 HETZNER-ASDE Germany 7->57 49 C:\Users\user\AppData\Roaming\...\Chrome.exe, PE32 7->49 dropped 51 C:\Users\user\...\Chrome.exe:Zone.Identifier, ASCII 7->51 dropped 53 C:\Users\user\AppData\...\SKM-210221.exe.log, ASCII 7->53 dropped 69 Writes to foreign memory regions 7->69 71 Injects a PE file into a foreign processes 7->71 16 MSBuild.exe 2 7->16         started        19 cmd.exe 1 7->19         started        21 cmd.exe 1 7->21         started        73 Machine Learning detection for dropped file 12->73 23 cmd.exe 1 12->23         started        25 cmd.exe 12->25         started        59 192.168.2.1 unknown unknown 14->59 27 cmd.exe 14->27         started        29 cmd.exe 14->29         started        file5 signatures6 process7 dnsIp8 55 severdops.ddns.net 54.87.130.189, 49798, 6204 AMAZON-AESUS United States 16->55 31 conhost.exe 19->31         started        33 timeout.exe 1 19->33         started        35 conhost.exe 21->35         started        37 timeout.exe 1 21->37         started        39 conhost.exe 23->39         started        41 timeout.exe 1 23->41         started        43 2 other processes 25->43 45 2 other processes 27->45 47 2 other processes 29->47 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a0255bd8a15446c39c4c32dceab9116c541583938022f13d3846012b9ee4c65f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-24 20:48:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uasvxwfbkrdmhhcmgloovoirnrkbla4tqarpcpjyiyasxhxeyzpq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
02b9159f39f4912af2fa68281a500161302f34cd00ce7dfd22861728e55f8956
AsyncRAT
26eaca0fdba3ef01a3a43f06ccaa97bcd824d70fe2d8722a8f2d89d096a2e04c
AsyncRAT
56a366fbe2babfa88e0e073d2c07e357ec4998d6d33077d53c222099ba8b97fb
AsyncRAT
5b476b935cae4bf02299f7dee135b0bb091fd7716b2973d7172e04f4f2985d72
AsyncRAT
72f4064c6ed879040bb5a91bfbcca2b4829739766dbc7c2d99b8631e5966242f
AsyncRAT
9fcaf1a573e825956bfcb9eb8dbbf4cc744c73083b65f5cf807fe0f0bf1047de
AsyncRAT
d9d9a78770bcd89cf5a0875a3c099bd2be2f6460878aa6db722f3fcd2319f322
AsyncRAT
f107328838d13ba85a74bd505c943daec0b0a226c800ae7d4107ef81cbee8215
AsyncRAT
+ 1'270 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat persistence rat
Link:
https://tria.ge/reports/220124-zka21aabe7/
Behaviour
Delays execution with timeout.exe
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
Async RAT payload
AsyncRat
Unpacked files
SH256 hash:
a0255bd8a15446c39c4c32dceab9116c541583938022f13d3846012b9ee4c65f
MD5 hash:
5da85385325f5290a7fae0141809a615
SHA1 hash:
0e8d69936b68f66f5cf795b3318b0c13d62c54ac
Link:
https://www.unpac.me/results/44366a49-a7f9-436a-836b-a5877413c40a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a0255bd8a154/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/a0255bd8a15446c39c4c32dceab9116c541583938022f13d3846012b9ee4c65f

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.

AsyncRAT

iso 0d264311596a7a4368102e8cfcaf9542bac00d40ae957d65e39c8b20486c3178

AsyncRAT

Executable exe a0255bd8a15446c39c4c32dceab9116c541583938022f13d3846012b9ee4c65f

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 0d264311596a7a4368102e8cfcaf9542bac00d40ae957d65e39c8b20486c3178
Cape
Cape
https://www.capesandbox.com/analysis/222070/

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