MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b21fd8f1e6d375cb3fbfedc7b2c792bcd7103620deed883d390f94f88e29d412. 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: 18

Intelligence 18 IOCs YARA 8 File information Comments

SHA256 hash:	b21fd8f1e6d375cb3fbfedc7b2c792bcd7103620deed883d390f94f88e29d412
SHA3-384 hash:	568d3937f855a5acbc031958a5af743def811b156fefbb7b8b47a077d921d97843bcfb90fb93b132d7abea4a0dd5a1b3
SHA1 hash:	2884128ab7566c1b815775d0efea0409e6f246e8
MD5 hash:	f3be47d3e19832335754b3610552ae43
humanhash:	avocado-washington-grey-eight
File name:	N£mero de pedido HMFZ0772 [Pedido].exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	786'432 bytes
First seen:	2024-05-28 07:03:06 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:rXYyvK/wzCn0YM4G3LlVca32Qs5EPPt/7xW5a06QT95WAQ2aa3sKRR6sos+Op:royXenFMxGQs5EPPtTxKa06QTO0LV/+O
Threatray	4'314 similar samples on MalwareBazaar
TLSH	T1E5F412113699CF01CABDA3F108A44AC56BF8B56B1470E71D5DD2B4CC986DF02DB82B8B
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	00d0d070d0607000 (6 x AgentTesla, 6 x Formbook, 1 x RemcosRAT)
Reporter	TeamDreier
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

306

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

b21fd8f1e6d375cb3fbfedc7b2c792bcd7103620deed883d390f94f88e29d412.exe

Verdict:

Malicious activity

Analysis date:

2024-05-28 07:21:41 UTC

Tags:

evasion stealer agenttesla exfiltration smtp

Link:

https://app.any.run/tasks/2527e274-c886-45f7-a143-0c7cd172a0d4

Note:

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

Detection(s):

SecuriteInfo.com.Trojan.Packed2.46841.9696.18535.UNOFFICIAL

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=665581fe5721c8e5271780a3win7simulatehigh_evasion

Tags:

Nekark

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a process from a recently created file

Creating a file

Using the Windows Management Instrumentation requests

DNS request

Connection attempt

Sending a custom TCP request

Reading critical registry keys

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Stealing user critical data

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/b21fd8f1e6d375cb3fbfedc7b2c792bcd7103620deed883d390f94f88e29d412

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/2d256648-06c7-43a9-b901-bdd0a7b64e7e

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1448360

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

AI detected suspicious sample

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

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

Sample uses string decryption to hide its real strings

Snort IDS alert for network traffic

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

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b21fd8f1e6d375cb3fbfedc7b2c792bcd7103620deed883d390f94f88e29d412

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/b21fd8f1e6d375cb3fbfedc7b2c792bcd7103620deed883d390f94f88e29d412/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2024-05-27 16:09:13 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 24 (87.50%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=wip5r4pg2n24wp575xd3fr4sxtlranra33wyqpjzb6kprdrj2qja._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

5841a93953d6b4e4738dd00e75af548786072e921f2a8526220f7f29b6dba53a

AgentTesla

69724b5cfdc922ae373f5ab6b8ca15c6eb09c17da6aa6b736010d826fd72755f

AgentTesla

8a5382caa4881d47d14b4361f6ae6ee49da89afe6b7a2fdeacd492d74a5ff26a

AgentTesla

945511638e7949c4f2a374a42158fe18091c89ed4b69a706494325f3667c89b9

AgentTesla

bd3991c11217634eaf0cf92a31723cfd3cf3e22619dc629105f0a6b8431ca8f2

AgentTesla

ea15a2963250dd58276e2c90c19a18186c0dd069475cb850c470c2e260291da7

AgentTesla

f5bf96b8b4dbcaefb28de614a310a78b5abf3f61d97efdf1f446ab3acf0a373e

AgentTesla

f7b800601e3b238161684a6921827dbed9d3f285740028da7f59e42968fa96cc

AgentTesla

+ 4'304 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla collection keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240528-hvx6vabe27/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

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:

e20da8c954999d1e01040867dcb3b6660d13126973d5a78a67cfc20093fa8128

MD5 hash:

d9a32cfa1ed7d8722f32edf0fff5969b

SHA1 hash:

de3734539ddb0a58821d2317867a606ca3319e3b

Detections:

AgentTesla

win_agent_tesla_bytecodes_sep_2023

INDICATOR_EXE_Packed_GEN01

Link:

https://www.unpac.me/results/777ab256-a455-4b3e-8d48-3d4f6a9bb6b7/

Parent samples :
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SH256 hash:

4ed3b0a80feebddd6441815ea99334d7eab55813713a9aa2953412b767405bb8

MD5 hash:

e472f83fa7fb92da892e8ebda9d92112

SHA1 hash:

af8477c3b9530134042aed375122d395d91879e8

Link:

https://www.unpac.me/results/777ab256-a455-4b3e-8d48-3d4f6a9bb6b7/

SH256 hash:

794a8cff150f21ac6b2d4103ce74ca4d212b9a17970b261ce8cf9b8df25804fd

MD5 hash:

560cf5263077a98fe41c3ce28b5c8096

SHA1 hash:

6bdacba344b8b24c2cbd478c8f2d41600ccf351b

Link:

https://www.unpac.me/results/777ab256-a455-4b3e-8d48-3d4f6a9bb6b7/

SH256 hash:

32c209f2a6369f5bd203a36263a9c243947f0e61da9ef0de068ad1117a9108f0

MD5 hash:

8d1fa59e56a1e6a12aa52f40c4890050

SHA1 hash:

2064eb9d04cb6ca22390df04ec7c214a5642b3ae

Link:

https://www.unpac.me/results/777ab256-a455-4b3e-8d48-3d4f6a9bb6b7/

SH256 hash:

b21fd8f1e6d375cb3fbfedc7b2c792bcd7103620deed883d390f94f88e29d412

MD5 hash:

f3be47d3e19832335754b3610552ae43

SHA1 hash:

2884128ab7566c1b815775d0efea0409e6f246e8

Link:

https://www.unpac.me/results/777ab256-a455-4b3e-8d48-3d4f6a9bb6b7/

Malware family:

AgentTesla.v4

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b21fd8f1e6d3/report/overview.html

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

Threat name:

Suspicious File

Score:

0.61

Link:

https://yomi.yoroi.company/submissions/b21fd8f1e6d375cb3fbfedc7b2c792bcd7103620deed883d390f94f88e29d412

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:	AgentTeslaV4 Create hunting rule
Author:	kevoreilly
Description:	AgentTesla Payload

Rule name:	INDICATOR_EXE_Packed_GEN01 Create hunting rule
Author:	ditekSHen
Description:	Detect packed .NET executables. Mostly AgentTeslaV4.

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

File information

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

Malspam

AgentTesla

exe b21fd8f1e6d375cb3fbfedc7b2c792bcd7103620deed883d390f94f88e29d412

(this sample)

Delivery method

Distributed via e-mail attachment

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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