MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90bcd90d58d9f3fd0b0d7c6771a1a701746b2f031c9498bd2b6a2a729f4dda02. 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: 17

Intelligence 17 IOCs YARA 18 File information Comments 1

SHA256 hash:	90bcd90d58d9f3fd0b0d7c6771a1a701746b2f031c9498bd2b6a2a729f4dda02
SHA3-384 hash:	cf62da806101db27fcb584099cca2e57594f9b4f3a5aeff87398f2ce34ed84b0a32725a628eb22af7b8f24a8dcd52a90
SHA1 hash:	81c81905226add23e9f23514c0b6459c2832785f
MD5 hash:	8a9978dfed7583d2e18a8fdcd39a2191
humanhash:	lemon-johnny-north-beer
File name:	8a9978dfed7583d2e18a8fdcd39a2191
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	943'616 bytes
First seen:	2024-05-16 05:02:03 UTC
Last seen:	2024-05-16 05:17:14 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	24576:ERoArkmdOGWcwE8cEUVbE9l92s6p6hsUaQl1:ERJR6fEdEUVgn92QBl1
TLSH	T1A115BE00AAEA9E05DA7813F7503178DC07B0965AE46AE2BA4EFD74EADC71BC1CD45703
TrID	69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.0% (.EXE) Win64 Executable (generic) (10523/12/4) 6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.2% (.EXE) Win32 Executable (generic) (4504/4/1) 1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):
dhash icon	d1d0e8e8e4f4ecd4 (30 x AgentTesla, 18 x RedLineStealer, 16 x SnakeKeylogger)
Reporter	zbetcheckin
Tags:	32 AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

367

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

90bcd90d58d9f3fd0b0d7c6771a1a701746b2f031c9498bd2b6a2a729f4dda02.exe

Verdict:

Malicious activity

Analysis date:

2024-05-16 05:05:17 UTC

Tags:

evasion agenttesla stealer

Link:

https://app.any.run/tasks/a7ca93cb-f7be-429b-8e85-58d0e3c3e4d5

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.14168.31116.UNOFFICIAL

Gathering data

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Using the Windows Management Instrumentation requests

DNS request

Connection attempt

Sending a custom TCP request

Creating a file in the %AppData% subdirectories

Reading critical registry keys

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Stealing user critical data

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

obfuscated packed

Link:

https://www.filescan.io/uploads/66459388636c5be33c7e922b/reports/fab19eba-4e3a-4e67-beb2-acbfc906613e/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/90bcd90d58d9f3fd0b0d7c6771a1a701746b2f031c9498bd2b6a2a729f4dda02

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.

Malware family:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/9c01ffe9-2d2e-4633-8067-e0e60c1873bb

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1442394

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Hides that the sample has been downloaded from the Internet (zone.identifier)

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/90bcd90d58d9f3fd0b0d7c6771a1a701746b2f031c9498bd2b6a2a729f4dda02

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/90bcd90d58d9f3fd0b0d7c6771a1a701746b2f031c9498bd2b6a2a729f4dda02/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2024-05-16 05:03:05 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 23 (82.61%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=sc6nsdky3hz72cynprtxdinhaf2gwlyddskjrpjlnivhfh2n3iba._file

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/240516-fppamsda8s/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Adds Run key to start application

Looks up external IP address via web service

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

Unpacked files

SH256 hash:

9f365a320405be969719491d46191fefa4e6a731684ed9fb6bcaa72bc6c1126e

MD5 hash:

63e615e39e78c95da103a5917a1be5e1

SHA1 hash:

e254316bc7025b7ce4e7f87148940588eab3d0a9

Detections:

AgentTesla

win_agent_tesla_g2

INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Agenttesla_type2

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

INDICATOR_EXE_Packed_GEN01

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Link:

https://www.unpac.me/results/726af033-2491-4f83-8cfc-a3191b8b0508/

Parent samples :
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SH256 hash:

294e7d271c966142600627c0277b8f631c64412711c28f72c936183a6f1178e3

MD5 hash:

a830a93166a56f4416c1fe6886996c36

SHA1 hash:

b80b36eaa7f9ab56c177707edff21d7ed174ea83

Link:

https://www.unpac.me/results/726af033-2491-4f83-8cfc-a3191b8b0508/

SH256 hash:

f540e8d603962027b3a1f8b86d035281bfbdd3a05a621ead255825bc2082632a

MD5 hash:

d172f59251b97b415b621d302e1be2b7

SHA1 hash:

b1534e603749c901b5ac185f20e281f6be7fa908

Link:

https://www.unpac.me/results/726af033-2491-4f83-8cfc-a3191b8b0508/

SH256 hash:

975a454835e031a37b391a66f6fb5fd697ae369e501c6f2bce06af22a86dd2a2

MD5 hash:

fb7d3a274f7889af43e90cc2f6662d08

SHA1 hash:

68afefe7db5930e27e6f4fa9685f299bcab74277

Link:

https://www.unpac.me/results/726af033-2491-4f83-8cfc-a3191b8b0508/

SH256 hash:

90bcd90d58d9f3fd0b0d7c6771a1a701746b2f031c9498bd2b6a2a729f4dda02

MD5 hash:

8a9978dfed7583d2e18a8fdcd39a2191

SHA1 hash:

81c81905226add23e9f23514c0b6459c2832785f

Link:

https://www.unpac.me/results/726af033-2491-4f83-8cfc-a3191b8b0508/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/90bcd90d58d9/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

0.96

Link:

https://yomi.yoroi.company/submissions/90bcd90d58d9f3fd0b0d7c6771a1a701746b2f031c9498bd2b6a2a729f4dda02

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:	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

File information

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

Web download

AgentTesla

exe 90bcd90d58d9f3fd0b0d7c6771a1a701746b2f031c9498bd2b6a2a729f4dda02

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2851532/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Comments

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zbet commented on 2024-05-16 05:02:04 UTC

url : hxxp://192.3.239.30/90008/smss.exe