MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40ffe9d0a3e9df1e599448659a1cbd9e5d104e7905429aa2c8078c4a993f11b9. 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: 6


Intelligence 6 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40ffe9d0a3e9df1e599448659a1cbd9e5d104e7905429aa2c8078c4a993f11b9
SHA3-384 hash: af98233484da3bb1604cedd661004313c8dee7aa60e773d890d149461407a4d858c5fd44c36e5e1848a3de693bc68def
SHA1 hash: f3447e47a159f203fdb8581d05d30b07d68ba4af
MD5 hash: f4a8a8e08a2affa00789cb4161fb05c2
humanhash: august-finch-angel-april
File name:BARSYL SHIPPING Co (VIETNAM).r15
Download: download sample
Signature AgentTesla
Create hunting rule
File size:655'186 bytes
First seen:2024-04-23 13:13:38 UTC
Last seen:2024-04-23 16:49:02 UTC
File type: rar
MIME type:application/x-rar
ssdeep 12288:3isEICzwHOKvUQ5yu2xnG+//xyu19XfNho6mnHNEHklNfIDdIwtG1VQahFBxKz4:pQzwuK1P2xnGg/0Ch8VHNWQWDdI71VQe
TLSH T10FD4335F43B3A4A3F20FA0114EA7D25E2969E1B95E663FD7136144E0108EE8F44937F9
TrID 58.3% (.RAR) RAR compressed archive (v-4.x) (7000/1)
41.6% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:AgentTesla r15 rar RFQ Shipping


Avatar
cocaman
Malicious email (T1566.001)
From: "davidlukas@barsyl.com" (likely spoofed)
Received: "from barsyl.com (unknown [91.218.14.62]) "
Date: "23 Apr 2024 19:45:49 +0300"
Subject: "RE: TOP URGENT: NEW ORDER PO_1411184200 / RFQ"
Attachment: "BARSYL SHIPPING Co (VIETNAM).r15"

Intelligence

File Origin
# of uploads :
4
# of downloads :
140
Origin country :
CH CH
File Archive Information

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

File name:BARSYL SHIPPING Co (VIETNAM).exe
File size:685'056 bytes
SHA256 hash: 6c06c665c435cf95787310f59e984006711d50bf091ae610cb4440abae1448c4
MD5 hash: 5385333a8618dac516b8b33b0bbf11a1
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed
Link:
https://www.filescan.io/uploads/6627b41d14ba3ce828993939/reports/c487ec1d-62d7-49bc-ad88-64d607327786/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/40ffe9d0a3e9df1e599448659a1cbd9e5d104e7905429aa2c8078c4a993f11b9
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.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40ffe9d0a3e9df1e599448659a1cbd9e5d104e7905429aa2c8078c4a993f11b9/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2024-04-23 13:13:42 UTC
File Type:
Binary (Archive)
Extracted files:
2
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=id76tufd5hpr4wmujbszuhf5tzorattzavbjviwia6gevgj7cg4q._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240423-rjdshaha35/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
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
Create hunting rule
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
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla
Rule name:win_agent_tesla_g2
Create hunting rule
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 40ffe9d0a3e9df1e599448659a1cbd9e5d104e7905429aa2c8078c4a993f11b9

(this sample)

AgentTesla

Executable exe 6c06c665c435cf95787310f59e984006711d50bf091ae610cb4440abae1448c4

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 6c06c665c435cf95787310f59e984006711d50bf091ae610cb4440abae1448c4
  
Dropping
AgentTesla
  
Dropping
MD5 5385333a8618dac516b8b33b0bbf11a1

Comments