MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ea568b732e66798cdc9f97f736cc77142d08e1996b7f5d6a996d9b941083e03c. 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: 18


Intelligence 18 IOCs YARA 27 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ea568b732e66798cdc9f97f736cc77142d08e1996b7f5d6a996d9b941083e03c
SHA3-384 hash: c87e4c88ba0d7b375ada533d3f047bd52ef46fa54b01081f3770a173b79fd9290e6932f0647db8a70c48c1ed934f7839
SHA1 hash: ebc5d5104e8de6a53aef7f5d50f44925070a4085
MD5 hash: d3bb7d0cce1e7a1a1884f25d2a5370d2
humanhash: wolfram-robert-low-purple
File name:Server.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:46'592 bytes
First seen:2024-12-13 10:29:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:hu4f9TskvpDWUPANxmo2qbgY8Vq0H9OPIozjbmgX3iEzO/uoXXgxMqJvsZzBDZ7r:hu4f9TswI27ss3o3b5XS8O/XJ7d7r
TLSH T17F232A003BE9812BF2BE4F78ADF26145867AF2672603D64D1CC4419B5613FC69A436FE
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
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 lontze7
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
377
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
Server.exe
Verdict:
Malicious activity
Analysis date:
2024-12-13 10:36:03 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/86036611-56e3-46d9-b919-a9bee73fa6b5

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

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=675c0de3259e5b60544ed938
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
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
DNS request
Connection attempt
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat asyncrat config-extracted fareit lolbin njrat rat razy reg schtasks vbnet
Link:
https://www.filescan.io/uploads/675c0cb7d0bf6a811f2db3fe/reports/9be3c223-4174-4541-bd5a-4c383c7e9b7c/overview
Verdict:
Malicious
Labled as:
AsyncRAT.Marte.B.Generic
Link:
https://www.hybrid-analysis.com/sample/ea568b732e66798cdc9f97f736cc77142d08e1996b7f5d6a996d9b941083e03c
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/7b430688-f7f5-4b0e-b964-9baeef57b25a
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1574522
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Drops PE files with benign system names
Found malware configuration
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
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: System File Execution Location Anomaly
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
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 dnsIp2 2 Behavior Graph ID: 1574522 Sample: Server.exe Startdate: 13/12/2024 Architecture: WINDOWS Score: 100 34 shadowdx.duckdns.org 2->34 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 46 11 other signatures 2->46 8 Server.exe 7 2->8         started        12 services.exe 2 2->12         started        signatures3 44 Uses dynamic DNS services 34->44 process4 dnsIp5 30 C:\Users\user\AppData\Roaming\services.exe, PE32 8->30 dropped 32 C:\Users\user\AppData\...\Server.exe.log, ASCII 8->32 dropped 48 Drops PE files with benign system names 8->48 15 cmd.exe 1 8->15         started        18 cmd.exe 1 8->18         started        36 shadowdx.duckdns.org 207.231.111.82, 49721, 49739, 49757 AS40676US United States 12->36 50 Antivirus detection for dropped file 12->50 52 Multi AV Scanner detection for dropped file 12->52 54 Machine Learning detection for dropped file 12->54 file6 signatures7 process8 signatures9 56 Uses schtasks.exe or at.exe to add and modify task schedules 15->56 20 conhost.exe 15->20         started        22 schtasks.exe 1 15->22         started        24 services.exe 3 18->24         started        26 conhost.exe 18->26         started        28 timeout.exe 1 18->28         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ea568b732e66798cdc9f97f736cc77142d08e1996b7f5d6a996d9b941083e03c
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ea568b732e66798cdc9f97f736cc77142d08e1996b7f5d6a996d9b941083e03c/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRat
Create hunting rule
Status:
Malicious
First seen:
2023-09-09 04:38:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
34 of 38 (89.47%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5jliw4zomz4yzxe7s73tntdxcqwqrymznn7v22uznwnzieed4a6a._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:services discovery rat
Link:
https://tria.ge/reports/241213-mjtrhaxmbq/
Behaviour
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
shadowdx.duckdns.org:8808
Verdict:
Malicious
Tags:
rat asyncrat Win.Packed.Razy-9625918-0
YARA:
malware_asyncrat asyncrat AsyncRat_Payload win_asyncrat_unobfuscated JPCERTCC_Asyncrat Windows_Generic_Threat_ce98c4bc
Link:
https://app.threat.zone/submission/cd445d44-adc0-4a7b-93c4-d92eb789c632
Unpacked files
SH256 hash:
ea568b732e66798cdc9f97f736cc77142d08e1996b7f5d6a996d9b941083e03c
MD5 hash:
d3bb7d0cce1e7a1a1884f25d2a5370d2
SHA1 hash:
ebc5d5104e8de6a53aef7f5d50f44925070a4085
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/914e8fdf-3b3e-4037-b657-340e5dca4aca/
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/ea568b732e66798cdc9f97f736cc77142d08e1996b7f5d6a996d9b941083e03c

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:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:AsyncRAT
Create hunting rule
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRAT Payload
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: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
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:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
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: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_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.

Web download

AsyncRAT

Executable exe ea568b732e66798cdc9f97f736cc77142d08e1996b7f5d6a996d9b941083e03c

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3332921/

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 (HIGH_ENTROPY_VA)high

Comments