MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc533f1c04f542db4d2cf6edd86eb7caea7a60b53098e4145068f43030560122. 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: 15

Intelligence 15 IOCs YARA 17 File information Comments

SHA256 hash:	bc533f1c04f542db4d2cf6edd86eb7caea7a60b53098e4145068f43030560122
SHA3-384 hash:	2eb352edbd8767caabb3e095cc2c130e3cbbb9c3dc02ca6a7993b41da5d20cf5dbc51ae1d62c1ce037a1068bff2275bd
SHA1 hash:	a78ee2121afc54778a7a2176cc2b413c609734b7
MD5 hash:	6e0288d1513d271ed045d827d9475117
humanhash:	one-pluto-butter-river
File name:	SecuriteInfo.com.Win32.PWSX-gen.1728.1300
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	765'952 bytes
First seen:	2024-04-18 05:18:33 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:iFaK/pbMXRwwAFiq9gxH4B3fkwdTYaVOKpEW3xT3eL+KepfBY:saiMXgiAPpvpHTI+K1
Threatray	716 similar samples on MalwareBazaar
TLSH	T1D1F4226526E95B21C5BC0BFA0CA4128443B2BF273052E74C9EC662DD5D53F914B60EFB
TrID	61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.1% (.SCR) Windows screen saver (13097/50/3) 8.9% (.EXE) Win64 Executable (generic) (10523/12/4) 5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):
dhash icon	e8d4aab2aa8eccd4 (8 x AgentTesla, 6 x Formbook, 1 x Loki)
Reporter	SecuriteInfoCom
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

353

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

bc533f1c04f542db4d2cf6edd86eb7caea7a60b53098e4145068f43030560122.exe

Verdict:

Malicious activity

Analysis date:

2024-04-18 05:19:02 UTC

Tags:

stealer agenttesla

Link:

https://app.any.run/tasks/ee963861-6c87-48d7-8c7f-ec4c4933e0c6

Note:

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

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Сreating synchronization primitives

Creating a process with a hidden window

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a file in the %temp% directory

Launching a process

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

Sending an HTTP GET request

Setting a keyboard event handler

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

Stealing user critical data

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/bc533f1c04f542db4d2cf6edd86eb7caea7a60b53098e4145068f43030560122

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/34c4d210-e759-4b87-b915-2afdf8d78863

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1427790

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Adds a directory exclusion to Windows Defender

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Contains functionality to log keystrokes (.Net Source)

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

Injects a PE file into a foreign processes

Installs a global keyboard hook

Loading BitLocker PowerShell Module

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)

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

Sigma detected: Scheduled temp file as task from temp location

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

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

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

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/bc533f1c04f542db4d2cf6edd86eb7caea7a60b53098e4145068f43030560122

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/bc533f1c04f542db4d2cf6edd86eb7caea7a60b53098e4145068f43030560122/

Threat name:

ByteCode-MSIL.Trojan.Barys

Status:

Malicious

First seen:

2024-04-18 04:15:58 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

18 of 23 (78.26%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xrjt6hae6vbnwtjm63w5q3vxzlvhuyfvgcmoifcqnd2damcwaera._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

551548dd1d1dd87d5231716f0f2003c0ee561f9a2ef7269cdf6534b96b02f465

AgentTesla

88989d52aae6ee018cab2afb8bfd712a29177ee9e20365d6b228a25828c25ee8

AgentTesla

bc533f1c04f542db4d2cf6edd86eb7caea7a60b53098e4145068f43030560122

AgentTesla

dc275961e09616fcda47d2acee085f1742c22e9066465eda4a06672d2efffc8c

AgentTesla

ec20774a0a999b7f231404214662eda2697ea5dcee82139d22430e7f06e47792

AgentTesla

+ 706 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/240418-fzvkeacb93/

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

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:

74bc3f8e27ef13578c028bc2d5f1a6ebdaa0cf1e65488310894b3b4ac6579a85

MD5 hash:

fb7dac1d8d4ae4b914f40ad73d84527d

SHA1 hash:

ffc24d0265267b0d1a2cea242d17b18cbcf18e5d

Link:

https://www.unpac.me/results/b21c7bb3-d3f1-4c5a-a7c0-12538c282705/

SH256 hash:

1c633f39a192f108f755e0bcf412e8489ad80781f3b7807c80892deb2526ff0d

MD5 hash:

e4b5d57e9e46a4e76075b5b92f71577f

SHA1 hash:

d76dc165724148193c6911cc75fc62c198737d3a

Link:

https://www.unpac.me/results/b21c7bb3-d3f1-4c5a-a7c0-12538c282705/

Parent samples :

d89ea6a01347b82f963ed7960583e5d76c6a07e91852fae83bc290e0f64a06b2
3f700fd41c6cca501d50cc2f62afd8e0d951efc1a918aa65ab3e84ee563ff1d6

SH256 hash:

264e1836ca7effc365a37d560f6e42c18b015aafb735eb027d18389509334504

MD5 hash:

eb74fc4d797adc9050218c0a7782d07e

SHA1 hash:

476f19f496f4e5ac86a8b532b24a8b7ac2dac421

Link:

https://www.unpac.me/results/b21c7bb3-d3f1-4c5a-a7c0-12538c282705/

SH256 hash:

62d82f34c8097bff09c978e68b5c96bcf809fb93236c025993a6ea92a1231039

MD5 hash:

fdd789edfb013ad67564a24211f7a1ce

SHA1 hash:

1dde56a44f1cc11cf2bc3d3228d9b65d80a3c580

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/b21c7bb3-d3f1-4c5a-a7c0-12538c282705/

Parent samples :

bc533f1c04f542db4d2cf6edd86eb7caea7a60b53098e4145068f43030560122
c75750db51edf7db96de6dc7834621ed37d1c81a587ea076c16dcaeb190d6bf8
826d8202d71324a5d3b0b76f33e8633d791e0cd0e8d1130c03a612458f9d7d77
62d82f34c8097bff09c978e68b5c96bcf809fb93236c025993a6ea92a1231039
92f372371d773e499445538a7f978fe16dc03bf772adf1151dc998a7916b284f

SH256 hash:

bc533f1c04f542db4d2cf6edd86eb7caea7a60b53098e4145068f43030560122

MD5 hash:

6e0288d1513d271ed045d827d9475117

SHA1 hash:

a78ee2121afc54778a7a2176cc2b413c609734b7

Link:

https://www.unpac.me/results/b21c7bb3-d3f1-4c5a-a7c0-12538c282705/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/bc533f1c04f5/report/overview.html

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

File information

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

No further information available

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

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