MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8935038d91fdee9b166f303a2e8071ab0ca501945c738e636ba68db6eaa50f9. 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: 8


Intelligence 8 IOCs YARA 21 File information Comments
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SHA256 hash: a8935038d91fdee9b166f303a2e8071ab0ca501945c738e636ba68db6eaa50f9
SHA3-384 hash: f9a2ad45558e0e1ed4b22799165197dcbf7ce9832c27b21ee4ecfeffc3117b984e30db81b36754016136e33d4f6ebce5
SHA1 hash: 98f849777692c066ff1ddae05aff56b609921ed5
MD5 hash: e5a991ea984ff390f8e63c00d8b40072
humanhash: ohio-kentucky-kansas-gee
File name:fright Invoice.rar
Download: download sample
Signature AgentTesla
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File size:1'237'417 bytes
First seen:2025-04-05 00:18:36 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 24576:7WUhxUkogAGY6X+uCtDYyF1iRu/xGalpWl476FYZ8BZ72m6l9:7XxvokX+uyDpFsuM2pw47QY8Z7jQ9
TLSH T16A45339723DC5B24D8EFAA836425132B64403F8A37D5FED308F527EF8F258792958819
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter cocaman
Tags:AgentTesla INVOICE rar


Avatar
cocaman
Malicious email (T1566.001)
From: "Martin KOUBEK <martin.koubek@primalogistics.cz>" (likely spoofed)
Received: "from dixonparker.proyectojuvenil.com (unknown [45.138.183.203]) "
Date: "4 Apr 2025 17:17:50 -0700"
Subject: "RE: URGENT / RQ2 / NEW ENQUIRY SEAFREIGHT / EXW TERM // ESAB / (2+1 P.O. as per attached)"
Attachment: "fright Invoice.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
149
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:fright Invoice.exe
File size:1'470'976 bytes
SHA256 hash: fb68ecc763b52eb309d5133015ce88b89f151b7cd72ef05a876f0775cc66c9f1
MD5 hash: 0225513443e46c75e1fbc61433c19df0
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27502.Rar5Heur.UNOFFICIAL
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Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67efed10cfd0a37f830e104d
Tags:
autorun micro xpack msil
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
crypt masquerade obfuscated packed packed packer_detected xpack
Link:
https://www.filescan.io/uploads/67f076fe2d430c849e07b3fd/reports/5435fe94-15c9-4266-9993-722433ead20d/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a8935038d91fdee9b166f303a2e8071ab0ca501945c738e636ba68db6eaa50f9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a8935038d91fdee9b166f303a2e8071ab0ca501945c738e636ba68db6eaa50f9/
Threat name:
Win32.Trojan.Jalapeno
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Status:
Malicious
First seen:
2025-04-04 13:51:00 UTC
File Type:
Binary (Archive)
Extracted files:
19
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcjvaogzd7potmlg6mb2f2ahdkymuuazixdtrzrwxjunw3vkkd4q._file
Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla discovery keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/250405-ge8rzatqw8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Executes dropped EXE
AgentTesla
Agenttesla family
Suspicious use of NtCreateUserProcessOtherParentProcess
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/a8935038d91fdee9b166f303a2e8071ab0ca501945c738e636ba68db6eaa50f9

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:AgentTeslaV3
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
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Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:INDICATOR_EXE_Packed_GEN01
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Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
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Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
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Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
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Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla
Rule name:win_agent_tesla_g2
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Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>

File information

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

Malspam

AgentTesla

rar a8935038d91fdee9b166f303a2e8071ab0ca501945c738e636ba68db6eaa50f9

(this sample)

AgentTesla

Executable exe fb68ecc763b52eb309d5133015ce88b89f151b7cd72ef05a876f0775cc66c9f1

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 fb68ecc763b52eb309d5133015ce88b89f151b7cd72ef05a876f0775cc66c9f1
  
Dropping
AgentTesla

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