MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9d98e4d1d6e7fa08ef3420875272f03f38e53754769592cf15ba5407f4916325. 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: 19


Intelligence 19 IOCs YARA 30 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9d98e4d1d6e7fa08ef3420875272f03f38e53754769592cf15ba5407f4916325
SHA3-384 hash: 571b83c08113df43ad7e91a4dfeecac6729d46dc95cf7650228aa272725bc2de07aa866317b1fc80d96baf19f2b637b1
SHA1 hash: 6cba8d1680a3df8efb3837f0ecf02ab3235e0597
MD5 hash: bbeb1fcb535aaca65df2885dcd650b4f
humanhash: whiskey-moon-ack-three
File name:1728030486260156864d022369bac998b72b88a888d384f210de7c0ccd21c79e1413c84c1c443.dat-decoded
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:64'512 bytes
First seen:2024-10-04 08:28:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 1536:zW8mxnrymk6JwvKufUYFBxLS5bVAPbEdZDSTrPlTGFx:zWpxrymk66KufUYFW5bVwELWdGx
TLSH T10353F7013BE9812AF3BE8F7469F2618146F9F4AB2D12D95D0CC914CE0532BC69951BBF
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:AsyncRAT base64-decoded exe


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
368
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
1728030486260156864d022369bac998b72b88a888d384f210de7c0ccd21c79e1413c84c1c443.dat-decoded
Verdict:
Malicious activity
Analysis date:
2024-10-04 08:29:40 UTC
Tags:
asyncrat rat
Link:
https://app.any.run/tasks/fac9fc02-c2ff-453d-90ee-08eaf2bc0196

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

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

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

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66ffa752780a9b632d22cb5f
Tags:
Autorun Crysan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt to an infection source
Query of malicious DNS domain
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat cmd hook keylogger lolbin reg schtasks vbnet
Link:
https://www.filescan.io/uploads/66ffa7555553b9e099ab3542/reports/385a7af3-6e17-4da1-8f2a-b48ca1aa31fd/overview
Verdict:
Malicious
Labled as:
AsyncRAT.Marte.B.Generic
Link:
https://www.hybrid-analysis.com/sample/9d98e4d1d6e7fa08ef3420875272f03f38e53754769592cf15ba5407f4916325
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:
Malicious
Link:
https://analyze.intezer.com/analyses/28ed3e8c-ea84-4cd6-82da-14a371d0c769
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1525489
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9d98e4d1d6e7fa08ef3420875272f03f38e53754769592cf15ba5407f4916325
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9d98e4d1d6e7fa08ef3420875272f03f38e53754769592cf15ba5407f4916325/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRat
Create hunting rule
Status:
Malicious
First seen:
2024-10-04 06:44:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=twmojuow475ar3zuecdve4xqh44okn2uo2kzftyvxjkap5ermmsq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
error
AsyncRAT
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:/// 03 03 03 /// discovery rat
Link:
https://tria.ge/reports/241004-kdj9rstflj/
Behaviour
System Location Discovery: System Language Discovery
AsyncRat
Malware Config
C2 Extraction:
ansss2608.duckdns.org:9003
Verdict:
Malicious
Tags:
rat asyncrat
YARA:
malware_asyncrat asyncrat AsyncRat_Payload win_asyncrat_bytecodes win_asyncrat_unobfuscated JPCERTCC_Asyncrat Windows_Generic_Threat_ce98c4bc
Link:
https://app.threat.zone/submission/6338a525-a1e4-4cee-b561-49b897db5664
Unpacked files
SH256 hash:
9d98e4d1d6e7fa08ef3420875272f03f38e53754769592cf15ba5407f4916325
MD5 hash:
bbeb1fcb535aaca65df2885dcd650b4f
SHA1 hash:
6cba8d1680a3df8efb3837f0ecf02ab3235e0597
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
asyncrat
Create hunting rule
Link:
https://www.unpac.me/results/3a6f9c65-5e81-46ea-a957-8ef9c3b060be/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9d98e4d1d6e7/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/9d98e4d1d6e7fa08ef3420875272f03f38e53754769592cf15ba5407f4916325

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:asyncrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:Macos_Infostealer_Wallets_8e469ea0
Create hunting rule
Author:Elastic Security
Rule name:malware_asyncrat
Create hunting rule
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
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:Mal_WIN_AsyncRat_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect AsyncRAT implant.
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: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_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
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.

260156864d022369bac998b72b88a888d384f210de7c0ccd21c79e1413c84c1c

AsyncRAT

Executable exe 9d98e4d1d6e7fa08ef3420875272f03f38e53754769592cf15ba5407f4916325

(this sample)

  
Dropped by
SHA256 260156864d022369bac998b72b88a888d384f210de7c0ccd21c79e1413c84c1c
  
Dropped by
MD5 f653a5c91575ad704cd4a59d82d38950
  
URLhaus
https://urlhaus.abuse.ch/url/3209572/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments