MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ff48615a61d55c9d93ca0e334feb43cee128948389f2c031006210aa4f3fc5a. 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 3 File information Comments

SHA256 hash:	4ff48615a61d55c9d93ca0e334feb43cee128948389f2c031006210aa4f3fc5a
SHA3-384 hash:	3f35c01c895f35d098c12b97e0d1094f99974c99a0d53fc0511df1883cc278b1fa224e097a6fd33929d217ae0bd7c281
SHA1 hash:	3a3ff0b8e3730ce95ff848918f8d382f41c753f1
MD5 hash:	8b3195d6c90254ee1687c9a1ca01ec7a
humanhash:	avocado-two-quebec-social
File name:	FORTUNA Purhase order.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	785'408 bytes
First seen:	2020-07-16 08:07:42 UTC
Last seen:	2020-07-18 11:00:14 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:H2qSPz2k4zUJvzqoP/0kNUlp49BOMLXmL+da8APHCA5MP7r9r/+pppppppppppp9:HIPO4skYkOe2+dL1q
Threatray	11'099 similar samples on MalwareBazaar
TLSH	71F43AC8F540659DCC5E9F715935CC3096227DAAFAF6910E22CB3D6B3BBE293C5110A2
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: kaiyuancn.com
Sending IP: 103.99.1.149
From: melinda-nbo<melinda-nbo@kaiyuancn.com>
Subject: RE: FORTUNA PURCHASE ORDER
Attachment: FORTUNA Purhase order.zip (contains "FORTUNA Purhase order.exe")

AgentTesla SMTP exfil server:
mail.framafilms.com:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/26504/

Detection(s):

SecuriteInfo.com.LuheFihaA.3915.2718.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Launching a process

Using the Windows Management Instrumentation requests

Creating a file in the %AppData% subdirectories

Forced shutdown of a system process

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

Unauthorized injection to a system process

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

84 / 100

Link:

https://www.joesandbox.com/analysis/389445

Signature

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

Initial sample is a PE file and has a suspicious name

Machine Learning detection for sample

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 steal Mail credentials (via file access)

Yara detected AgentTesla

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/4ff48615a61d55c9d93ca0e334feb43cee128948389f2c031006210aa4f3fc5a/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-07-16 08:09:06 UTC

AV detection:

22 of 28 (78.57%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=j72imfngdvk4twj4udrtj7vuhtxbfckihcpsyayqayqqvjht7rna._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

2a938146aaf4b99735e88bad458fcd754b82072ee56ebe2a7baa8ee0bf9d3351

AgentTesla

3c73fc6ab8a765ea48a1ee51a2a3142fe05332e4661c2f2ec0526ae225acf308

AgentTesla

3f0bb6576f8d4ca423a9e4fab5901c9e590e07106171045b6c8b548cb01b1017

AgentTesla

5ed34087532263b2a7797a258fadc6d243e1eaedc7bcd2860fbb7ee2e1e6306c

AgentTesla

5feefba742eecb4eb287261d0d1b3ffa2a44535d88496edbc85f15975a471eaa

AgentTesla

8d4c5f365504b7836678f742584f084f4ab5fd6ae8c4ea5370d6f2eb6b2c42fe

AgentTesla

ae74623e356130501507540ec165aa3ca088a7cb27bae50769998b6cb6538f0b

AgentTesla

c176d7b838d9146e64732d143cda3c07f4c76b693ab940ca045a51d07c52faae

AgentTesla

ccb65f79de018225e7ca824cc70f81726e771019e53785d7a2a3772548fcfa23

AgentTesla

+ 11'089 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

7/10

Tags:

spyware persistence

Link:

https://tria.ge/reports/200716-mzeajbm5yn/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetThreadContext

Adds Run key to start application

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Reads user/profile data of local email clients

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:	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