MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a290ed67e8d8e911f1a1b66e1f1335d680d4b445d21345e5056debfe3ff3fc2. 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


VenomRAT


Vendor detections: 13


Intelligence 13 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a290ed67e8d8e911f1a1b66e1f1335d680d4b445d21345e5056debfe3ff3fc2
SHA3-384 hash: 454cc20ba0619792f87ab3577f160a36da9c749cb8a3bbd4d75c1ad5710e69d5abf266673170b471a1cb9317329a5c89
SHA1 hash: 3b568d941aa642ee09d453c51b665b987a6fb763
MD5 hash: 32b7bb008924290fbb83d7f89d2df62b
humanhash: grey-apart-london-massachusetts
File name:Client.exe
Download: download sample
Signature VenomRAT
Create hunting rule
File size:75'776 bytes
First seen:2025-02-08 03:39:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'116 x AgentTesla, 20'118 x Formbook, 12'358 x SnakeKeylogger)
ssdeep 1536:8UUPcxVteCW7PMVee9VdQuDI6H1bf/Ks2PAQzcBLVclN:8UmcxV4x7PMVee9VdQsH1bfSs2PAQYBY
TLSH T10F734B013BE88D2AF2AE47B9ACF252074EF4D5576512CE5E3CC440CD5A67BC686037EA
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 Anonymous
Tags:exe VenomRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
489
Origin country :
US US
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
Client.exe
Verdict:
Malicious activity
Analysis date:
2025-02-08 03:40:53 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/d88de139-f123-4362-af05-d435c2caf5be

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Razy-9807129-0
Create hunting rule

Win.Malware.Generickdz-9865912-0
Create hunting rule

Win.Trojan.AsyncRAT-9914220-0
Create hunting rule

Win.Malware.Zusy-10034587-0
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a6d2d0d010e522d1b7eb66
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Connection attempt
Creating a window
Setting a global event handler for the keyboard
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4a290ed67e8d8e911f1a1b66e1f1335d680d4b445d21345e5056debfe3ff3fc2
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9b162704-258c-47e9-91cc-90670fee845f
Result
Threat name:
AsyncRAT, VenomRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1610013
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Sample uses string decryption to hide its real strings
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected VenomRAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4a290ed67e8d8e911f1a1b66e1f1335d680d4b445d21345e5056debfe3ff3fc2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a290ed67e8d8e911f1a1b66e1f1335d680d4b445d21345e5056debfe3ff3fc2/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2025-02-08 03:40:14 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=jiuq5vt6rwhjchy2dntod4jtlvua2s2eluqtixsqk3pl7y77h7ba._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
error
VenomRAT
Verdict:
Malicious
Tags:
rat asyncrat venom_rat Win.Packed.Razy-9807129-0
YARA:
asyncrat win_asyncrat_unobfuscated EXE_VenomRAT_May_2024 Windows_Generic_Threat_ce98c4bc
Link:
https://app.threat.zone/submission/1231915e-5ccb-4880-a8f0-2607009130e1
Unpacked files
SH256 hash:
4a290ed67e8d8e911f1a1b66e1f1335d680d4b445d21345e5056debfe3ff3fc2
MD5 hash:
32b7bb008924290fbb83d7f89d2df62b
SHA1 hash:
3b568d941aa642ee09d453c51b665b987a6fb763
Detections:
AsyncRAT
Create hunting rule
VenomRat
Create hunting rule
Link:
https://www.unpac.me/results/ca760cbc-0ad2-44eb-9cde-e83b2429beea/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4a290ed67e8d8e911f1a1b66e1f1335d680d4b445d21345e5056debfe3ff3fc2

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:AcRat
Create hunting rule
Author:Nikos 'n0t' Totosis
Description:AcRat Payload (based on AsyncRat)
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
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: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:venomrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Windows_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
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)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

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