MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44e5d3a0cb17677a8fe7827e3d56723380dd12612359125c61266b99ed2f1903. 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: 15


Intelligence 15 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 44e5d3a0cb17677a8fe7827e3d56723380dd12612359125c61266b99ed2f1903
SHA3-384 hash: 6bd48a3b7952800be6db37d7b5fcd5ccecb7ddf61a9cb8cd37ea59341af28f63e40d35dc86234f886cfc0b56d6d235ca
SHA1 hash: 146249504fe6ccba72e848ca933cf0874ee85346
MD5 hash: 8d9d38976b83cb8938fffd7ae75f5f5b
humanhash: beer-sad-bravo-july
File name:44e5d3a0cb17677a8fe7827e3d56723380dd12612359125c61266b99ed2f1903
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:46'080 bytes
First seen:2023-10-09 05:28:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 768:Eu/6ZTgoiziWUUM9rmo2qrb1C3cgyPIIzjbfgX3iPK1JzleRBDZTx:Eu/6ZTgle20tgbI3boXSQNlevdTx
Threatray 3'073 similar samples on MalwareBazaar
TLSH T161231A103BE8812BF27E4F78ACF26145467AF2673603EA491CC452D75613FC69A42AFD
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 adrian__luca
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
299
Origin country :
HU HU
Vendor Threat Intelligence
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Win.Packed.Razy-9625918-0
Create hunting rule

Win.Packed.AsyncRAT-9856570-1
Create hunting rule

Win.Packed.AsyncRAT-9861056-1
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat lolbin njrat packed rat reg replace schtasks
Link:
https://www.filescan.io/uploads/65238fa29b16696e9f970eeb/reports/42c578c0-59c2-4f09-8159-9e51037510ca/overview
Verdict:
Malicious
Labled as:
Backdoo.FB32B6C0
Link:
https://www.hybrid-analysis.com/sample/44e5d3a0cb17677a8fe7827e3d56723380dd12612359125c61266b99ed2f1903
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/4651c749-9fbf-4cb2-8b74-4fb70255ad15
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1321951
Signature
Antivirus / Scanner detection for submitted sample
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
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 dynamic DNS services
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/44e5d3a0cb17677a8fe7827e3d56723380dd12612359125c61266b99ed2f1903/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-10-09 05:29:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 23 (95.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=its5higlc5txvd7hqj7d2vtsgoan2etbenmrexdbezvzt3jpdebq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
20d829712638e1cf6dac27bdcc57f247a24a7de8fba941568dd41e869d84f75c
AsyncRAT
4a72f887ce916e9eaef552c54fdcdc51dd610b3b5c92528956341281bdcbed82
AsyncRAT
6a9d3d2a4eaa850159fcddf238be20521d711c2ee75bfa01145cca1e9bacfae5
AsyncRAT
8c8aee950d1420d409169010b6a9e475c2d0d78ecf9c6d31a3a7542c15735e4f
AsyncRAT
a16f217f8f881202ee1e2ce7dc8d5cc0b8f0b48efdfa520ae9832fbf7a9a46a7
AsyncRAT
c8f3375851e936855757e0829be393ccbcd6324072bc63496817b66fdf0dd971
AsyncRAT
e51cfc4ccf015ea240546459a25884b818594916e04d987c08fa5d2b2e12aa30
AsyncRAT
f372cfc59d3e2235cc22911f71ca105b1d602fb419c9af2d9d03e7d91ee2eea6
AsyncRAT
+ 3'063 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/231009-f6knsaaf6v/
Behaviour
Suspicious use of AdjustPrivilegeToken
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
bestsuccess.ddns.net:2442
Unpacked files
SH256 hash:
44e5d3a0cb17677a8fe7827e3d56723380dd12612359125c61266b99ed2f1903
MD5 hash:
8d9d38976b83cb8938fffd7ae75f5f5b
SHA1 hash:
146249504fe6ccba72e848ca933cf0874ee85346
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/8cf5fce7-dcd3-41ea-9d6e-29613fc5c9aa/
Parent samples :
4ca7277273f9409593101a4e73211877696ae1bed8fddd28650fdd9877ffd6f0
44e5d3a0cb17677a8fe7827e3d56723380dd12612359125c61266b99ed2f1903
0ae5379acde963feff1aed62b4484106e1ddfc14339d6c6f72d2911e0f8a4644
d0812b9e320479317bb356c3687ae467d09a8caa4e0aff32bfcbb99f6932a5e4
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/44e5d3a0cb17/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/44e5d3a0cb17677a8fe7827e3d56723380dd12612359125c61266b99ed2f1903

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:malware_asyncrat
Create hunting rule
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
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:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
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_bytecodes
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_unobfuscated
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
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.

Malspam

AsyncRAT

Executable exe 44e5d3a0cb17677a8fe7827e3d56723380dd12612359125c61266b99ed2f1903

(this sample)

  
Delivery method
Distributed via e-mail attachment

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