MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4b6a4a223ce8ead6703e59be21f5d85d9190fc0af04ea3dd05c9ddf330452aa. 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 17 File information Comments

SHA256 hash:	a4b6a4a223ce8ead6703e59be21f5d85d9190fc0af04ea3dd05c9ddf330452aa
SHA3-384 hash:	112979ca2b332bedb51d8d3c59170edd5a15596240d5936461a6159cb0ea46dd53ee145a949eee51e96f1fe28dfe0a5b
SHA1 hash:	db384ef330fadaec7eab5843f9443cfa1eec9c24
MD5 hash:	5c827fb72db3f858a606bab5a1aef98e
humanhash:	ten-enemy-kitten-alabama
File name:	sample #521299.zip
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	648'294 bytes
First seen:	2024-03-27 09:17:18 UTC
Last seen:	2024-03-29 14:00:36 UTC
File type:	zip
MIME type:	application/zip
ssdeep	12288:7pawLsfiXyrDd9jcBRVrFUEUAXtnae1Z9yWJdi5jgcR9XIlESMIV:7pawLsbrDATZFGXej7JbjMIV
TLSH	T15ED4236EEEE09F162CC8340A5786E8BC780C6455911A4962F121FD296CFF4F1F60EE76
TrID	80.0% (.ZIP) ZIP compressed archive (4000/1) 20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter	cocaman
Tags:	AgentTesla zip

cocaman

Malicious email (T1566.001)
From: "dkenc@dk-enc.co.kr" (likely spoofed)
Received: "from dk-enc.co.kr (unknown [45.137.22.116]) "
Date: "27 Mar 2024 04:36:43 +0100"
Subject: "Sample Request for Poomjai Engineering Co Ltd (Form #521299)"
Attachment: "sample #521299.zip"

Intelligence

File Origin

# of uploads :

# of downloads :

324

Origin country :

File Archive Information

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

File name:	sample #521299.exe
File size:	696'320 bytes
SHA256 hash:	411217082847be5939620211887564a0eb9bce1ba6f5cc20fc73423448270762
MD5 hash:	fb93809f3555b1c19506660419980c84
MIME type:	application/x-dosexec
Signature	AgentTesla

Vendor Threat Intelligence

Result

Verdict:

Unknown

File Type:

PE File

Link:

https://app.docguard.net/a4b6a4a223ce8ead6703e59be21f5d85d9190fc0af04ea3dd05c9ddf330452aa/results/dashboard

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

keylogger packed

Link:

https://www.filescan.io/uploads/6603e458f7095ca3446d3b8b/reports/ba04c20d-1dfd-4e61-afc7-404ff838002f/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/a4b6a4a223ce8ead6703e59be21f5d85d9190fc0af04ea3dd05c9ddf330452aa

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/a4b6a4a223ce8ead6703e59be21f5d85d9190fc0af04ea3dd05c9ddf330452aa

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 keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240327-lzgw7shf86/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

AgentTesla

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/a4b6a4a223ce8ead6703e59be21f5d85d9190fc0af04ea3dd05c9ddf330452aa

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:	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