MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4739d35b11b8e00f24350369ed59f174f5737a300ed5e7f7b458dd3474e01c81. 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: 10

Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash:	4739d35b11b8e00f24350369ed59f174f5737a300ed5e7f7b458dd3474e01c81
SHA3-384 hash:	17ac9c96e3c6361a5d8c1ac2bcf9167e3bc6cc7e6bd5e454382f6743377f25543e385fd10f0683371425e9c50db74b34
SHA1 hash:	54d5ef9b40ca5ec5c9f3ef5756f375301c37335d
MD5 hash:	5be23757f45338a8bb0cbc50584d1b15
humanhash:	pizza-florida-april-aspen
File name:	Scan000066372.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	1'033'728 bytes
First seen:	2020-08-27 08:51:00 UTC
Last seen:	2020-08-27 10:09:49 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:NO1O8i3qWE9py27yxpoDAwMeVV/BEn4N0swyJR:U1O8QYo27bDFVC4as7
Threatray	10'065 similar samples on MalwareBazaar
TLSH	FD2523C48B42D237DD791E389426C8A102766E75ECA1FF8D6DC8B5BA62373C29113D27
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: mail0.beraldgroups.us
Sending IP: 104.168.242.62
From: contact <contact@beraldgroups.us>
Subject: Request for Quotation
Attachment: Quotation Sheet.pdf.z (contains "Scan000066372.exe")

AgentTesla SMTP exfil server:
mtrobnkuk.com:25

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/51703/

Detection(s):

SecuriteInfo.com.Generic.mg.5be23757f45338a8.20472.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %AppData% directory

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

Sending a UDP request

Reading critical registry keys

Stealing user critical data

Unauthorized injection to a system process

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/452457

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Contains functionality to register a low level keyboard hook

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

Installs a global keyboard hook

Maps a DLL or memory area into another process

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)

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 access)

Writes to foreign memory regions

Yara detected AgentTesla

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/4739d35b11b8e00f24350369ed59f174f5737a300ed5e7f7b458dd3474e01c81/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-27 08:52:07 UTC

AV detection:

22 of 29 (75.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=i445gwyrxdqa6jbvanu62wprot2xg6rqb3k6p55uldoti5hadsaq._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

269770044a2b90764179e7d03229a3977e6034257d036c9f3d977803107f8b24

AgentTesla

580930d1a3f4ce1e942b21e4a6b400071952241e6f17bceee44c1fd5621f9190

AgentTesla

7992c7a13287cca6f8528dcd6ee08e95367634aeb1dae73f3e194afbf1fe98a9

AgentTesla

7a93cc0c53a02b539c07c06f9fc2d0e9b3794e6c33165e4e7cbe34c569e31278

AgentTesla

a9cf92e1eeda276eae412eb2236216cadcb6342d6c4e638ea337349693f633b9

AgentTesla

b8378f3853a3fbb5a5e7cdd2fd81ac767f8798ef68951b75adb1fa6c13a34cf4

AgentTesla

c787a047333210934bbea458801e55c8101fad480e119d4b41b072e7b921b60d

AgentTesla

d3dc0fad4580b2c3d0f5bfe27fd99d66b20f2a2c65c219218f9e6628a9df5d2b

AgentTesla

f5a3632e4dc565def5e2a0e015931fd3bca1c19e1045044429bbe3912422e32b

AgentTesla

+ 10'055 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200827-1slw8zg6z2/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

AgentTesla Payload

AgentTesla

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

Threat name:

Trojan

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/4739d35b11b8e00f24350369ed59f174f5737a300ed5e7f7b458dd3474e01c81

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

Rule name:	CAP_HookExKeylogger Create hunting rule
Author:	Brian C. Bell -- @biebsmalwareguy
Reference:	https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar