MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe. 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


AgentTesla


Vendor detections: 12


Intelligence 12 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe
SHA3-384 hash: 3a388f96859ca8829dea3b2bb9a7c34b21f8c9248a3dafeec4effce4653bcf828031889eb5bf8bd3890a472847292a76
SHA1 hash: 590e38eff64ca99979ffc82c635bbe4d6b86a723
MD5 hash: c10f8e7425a002827558cbcdcd865837
humanhash: vegan-bulldog-quebec-eight
File name:libcef.dll
Download: download sample
Signature AgentTesla
Create hunting rule
File size:8'022'528 bytes
First seen:2025-10-21 06:29:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 74061dd34950419c241b0eff6a45d61a (1 x AgentTesla)
ssdeep 49152:ZgD5qSN8MjTptyO8d5O7Cs7HjTpeZ4VVSBmDwXlyWftX7bVqkADvWkg7L7IHQbX5:ZGq34/JRmH1scnfQKq8fNh5HfDIlZM
TLSH T19D86F7B10D9B427182ABD330F267CE355BB15F00504817B6DFF0E8849BBBE6D61DAA58
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
156
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe.dll
Verdict:
No threats detected
Analysis date:
2025-10-21 06:37:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a8d24e12-b8cf-4973-953c-91064b7e6094

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/33601/
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f728b9ad6ce0f5ad403d5b
Tags:
malware
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context cmd fingerprint lolbin masquerade microsoft_visual_cc msbuild packed vidar
Link:
https://www.filescan.io/uploads/68f728bd3a79800405eda94b/reports/86d1155d-8fdd-4949-9e4e-3eaff978e73a/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe
Verdict:
Malicious
File Type:
dll x64
First seen:
2025-09-29T10:40:00Z UTC
Last seen:
2025-10-21T06:23:00Z UTC
Hits:
~1000
Detections:
HEUR:Trojan.Win64.Generic
Link:
https://opentip.kaspersky.com/b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/7d832b95-9fc0-4178-8238-6254cccc2806
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1798921
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1798921 Sample: libcef.dll.exe Startdate: 21/10/2025 Architecture: WINDOWS Score: 48 28 Multi AV Scanner detection for submitted file 2->28 8 loaddll64.exe 1 2->8         started        process3 process4 10 cmd.exe 1 8->10         started        12 rundll32.exe 8->12         started        14 rundll32.exe 8->14         started        16 23 other processes 8->16 process5 18 rundll32.exe 10->18         started        20 WerFault.exe 16 12->20         started        22 WerFault.exe 16 14->22         started        24 WerFault.exe 16 16->24         started        process6 26 WerFault.exe 20 18 18->26         started       
Score:
81%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/c10f8e7425a002827558cbcdcd865837
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe/
Verdict:
Malicious
Threat:
Trojan.Win64
Link:
https://tip.neiki.dev/file/b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe
Threat name:
Win64.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2025-09-29 13:31:31 UTC
File Type:
PE+ (Dll)
AV detection:
23 of 36 (63.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wyyd2hktwxkh45bwlyhp6kx4ecsui77pr2hikqllp2ur2fsfg77a._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/251021-g92l5sskdl/
Unpacked files
SH256 hash:
b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe
MD5 hash:
c10f8e7425a002827558cbcdcd865837
SHA1 hash:
590e38eff64ca99979ffc82c635bbe4d6b86a723
Link:
https://www.unpac.me/results/0b15a02e-bff8-411e-8ea9-115ef0fe4df8/
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/b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Malspam

AgentTesla

Executable exe b6303d1d53b5d47e74365e0eff2afc20a5447fef8e8e85416b7ea91d164537fe

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/33601/

Comments