MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5bfbcb21c93459f79fe9dd51b10db6a396803054d6b5e8fa9ee2af82a1d477d. 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: 7


Intelligence 7 IOCs YARA 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5bfbcb21c93459f79fe9dd51b10db6a396803054d6b5e8fa9ee2af82a1d477d
SHA3-384 hash: 372f183c1f6d3cab3d77b125a5a3ecfeb03ee61bc1aadb080eae2014ded49c2bf5be0a4ed506f569085082b9e5e9341b
SHA1 hash: 80b903f2937408f4e3fd375de6e2ddf0a0c87130
MD5 hash: 6dc32c5eb55e8ea2ea6b80b0fbf99988
humanhash: bakerloo-lake-nuts-neptune
File name:New Orders.rar
Download: download sample
Signature AgentTesla
Create hunting rule
File size:553'199 bytes
First seen:2025-08-27 12:00:10 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:L5zCz6l0VNZfkBUmLZwvk2vrjzhk7I9I5drTtU:L5ifDkv1mz6I9I5xTm
TLSH T1B0C423171AC367C00A5D190D042122F7DC69B9663AE92DECE0EFD41BA60F5B77638B2C
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 rar


Avatar
cocaman
Malicious email (T1566.001)
From: "csdept@coreana.com.hk" (likely spoofed)
Received: "from coreana.com.hk (unknown [185.222.57.68]) "
Date: "18 Aug 2025 17:51:34 -0700"
Subject: "Re: URGENT: New Orders (PO#1164031)"
Attachment: "New Orders.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
55
Origin country :
CH CH
File Archive Information

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

File name:New Orders.exe
File size:578'560 bytes
SHA256 hash: a57afe5938c995e207de67907eb7c5463d6ed5b8def8c4e4b782cfa4cd95dc2a
MD5 hash: 85f6870506cb18b310893ec5f5f32813
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68aef37f3e988eb6ab82cd6a
Tags:
malware
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm anti-vm autoit compiled-script cscript lolbin masquerade microsoft_visual_cc overlay packed packed packed phishing reg threat upx wscript
Link:
https://www.filescan.io/uploads/68aef39539a6221faa70da21/reports/32102eb5-4512-48f2-b525-df63e4caf26e/overview
Verdict:
Malicious
Labled as:
Trojan.Downloader
Link:
https://www.hybrid-analysis.com/sample/f5bfbcb21c93459f79fe9dd51b10db6a396803054d6b5e8fa9ee2af82a1d477d
Verdict:
Unknown
File Type:
rar
Link:
https://opentip.kaspersky.com/f5bfbcb21c93459f79fe9dd51b10db6a396803054d6b5e8fa9ee2af82a1d477d/results?tab=lookup
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5bfbcb21c93459f79fe9dd51b10db6a396803054d6b5e8fa9ee2af82a1d477d/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-08-19 05:11:24 UTC
File Type:
Binary (Archive)
Extracted files:
53
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6w73zmq4sncz66p6txkrweg3ni4wqayfjvvv5d5j5yvpqkq5i56q._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan upx
Link:
https://tria.ge/reports/250827-pamb6sznv2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
AgentTesla
Agenttesla family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/f5bfbcb21c93459f79fe9dd51b10db6a396803054d6b5e8fa9ee2af82a1d477d

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:agentesla
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked agenttesla malware samples.
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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:upx_3
Create hunting rule
Author:Kevin Falcoz
Description:UPX 3.X
Rule name:upx_largefile
Create hunting rule
Author:k3nr9
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>
Rule name:win_upx_packed
Create hunting rule
Author:Reedus0
Description:Rule for detecting UPX packed malware
Rule name:win_upx_packed
Create hunting rule
Author:Reedus0
Description:Rule for detecting UPX packed malware

File information

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

Malspam

AgentTesla

rar f5bfbcb21c93459f79fe9dd51b10db6a396803054d6b5e8fa9ee2af82a1d477d

(this sample)

AgentTesla

Executable exe a57afe5938c995e207de67907eb7c5463d6ed5b8def8c4e4b782cfa4cd95dc2a

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 a57afe5938c995e207de67907eb7c5463d6ed5b8def8c4e4b782cfa4cd95dc2a
  
Dropping
AgentTesla
  
Dropping
MD5 85f6870506cb18b310893ec5f5f32813

Comments