MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57fd833b1b84117b5015c3bb9340541b74431065fb26f65d28cfc94f6a0bee1c. 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: 9

Intelligence 9 IOCs YARA 23 File information Comments

SHA256 hash:	57fd833b1b84117b5015c3bb9340541b74431065fb26f65d28cfc94f6a0bee1c
SHA3-384 hash:	8eb6e95e7f60f04006828d3c3dc09fe9b2607a1ede15b734c426eb268e20dc72f63c287da0fc9217804a046942253765
SHA1 hash:	b7ad5deee27599c2fb592d38fb1d7f0fd5d75d29
MD5 hash:	4915515dfac621c02b2827f83129cc5c
humanhash:	uniform-october-don-west
File name:	INSTRUCTION LETTER 63-2025.tar.001
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	1'319'936 bytes
First seen:	2025-03-25 03:27:30 UTC
Last seen:	Never
File type:	tar
MIME type:	application/x-tar
ssdeep	24576:/l58GmQQQdIixhcvWQ3mSDndgPonMwf1eqAkrepcd6BC:d5hmQHIixSt3fdgPonrzAoepcd
TLSH	T147550113BA9686A1C3845B77C5E76400CF74E5C2B253CB4EB98A23EA8C4777BCD56207
TrID	62.9% (.TAR/GTAR) TAR - Tape ARchive (GNU) (17/3) 37.0% (.TAR) TAR - Tape ARchive (file) (10/3)
Magika	tar
Reporter	cocaman
Tags:	001 AgentTesla INVOICE tar

cocaman

Malicious email (T1566.001)
From: ""Ali Raza" <export1@capital-sports.net>" (likely spoofed)
Received: "from capital-sports.net (unknown [45.137.22.99]) "
Date: "24 Mar 2025 20:26:31 -0700"
Subject: "URGENT: NEW SHIPMENT FOR CONSIGNEE MOLTEN CORPORATION INVOICE 63/2025"
Attachment: "INSTRUCTION LETTER 63-2025.tar.001"

Intelligence

File Origin

# of uploads :

# of downloads :

111

Origin country :

File Archive Information

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

File name:	INSTRUCTION LETTER 63-2025.exe
File size:	1'318'400 bytes
SHA256 hash:	2a64d3212309da646f5ef8210f6b8966c7a63ce82cb5bbd3c03838dd296badcf
MD5 hash:	1ce4eec150b3f140f72ce0ddcad39337
MIME type:	application/x-dosexec
Signature	AgentTesla

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Win32.SpywareX-gen.31572.15893.UNOFFICIAL

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67e225c9bb84e066269eb0ce

Tags:

autorun agensla virus msil

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

explorer lolbin net_reactor obfuscated packed packed packer_detected

Link:

https://www.filescan.io/uploads/67e222cb3e6805386cff9680/reports/c6ed07c1-24ac-4f0b-88f6-6108864f7e5b/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/57fd833b1b84117b5015c3bb9340541b74431065fb26f65d28cfc94f6a0bee1c

Result

Verdict:

SUSPICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Score:

100%

Verdict:

Malware

File Type:

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla discovery keylogger spyware stealer trojan

Link:

https://tria.ge/reports/250325-gjpjwsvqx7/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Looks up external IP address via web service

Drops startup file

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/57fd833b1b84117b5015c3bb9340541b74431065fb26f65d28cfc94f6a0bee1c

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:	Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

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:	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:	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:	win32_dotnet_obfuscate Create hunting rule
Author:	Reedus0
Description:	Rule for detecting .NET obfuscated malware

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