MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7aa9dabbf167e61e1c5b34d23a527daf5aa5981d059b48a6a654cc3d86f2e916. 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: 9

Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash:	7aa9dabbf167e61e1c5b34d23a527daf5aa5981d059b48a6a654cc3d86f2e916
SHA3-384 hash:	aa9c76e07c3ebdcc7de6c5d9ab613eaecff6e94d0b3e09b0afd8e328e83cb207e958451056b64695b780bef9ccceb84b
SHA1 hash:	a7986ce56bc239b5a49dfa21bb6df2ff3c8590f0
MD5 hash:	b3e8431291e6bca9ae08c032b07ff2aa
humanhash:	tennis-bulldog-artist-mexico
File name:	Remittance Advice.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	599'040 bytes
First seen:	2020-07-16 08:18:12 UTC
Last seen:	2020-07-16 14:26:40 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'672 x AgentTesla, 19'494 x Formbook, 12'214 x SnakeKeylogger)
ssdeep	12288:N5lAZ2k4zUQMXj3n+sMKUzREAIArTb96yFCns/tSl88RbEeSD7:7lUXDfMPz+J4T5ul8
Threatray	11'102 similar samples on MalwareBazaar
TLSH	7AD48CDC3510758EC90E8D764964DC70AA202C66F7FBE20763C36EAF793C597DA112A2
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: trukai.com.pg
Sending IP: 185.222.58.143
From: bmaima@trukai.com.pg
Subject: Remittance Advice for Inv#16809 & 16769
Attachment: Remittance Advice.zip (contains "Remittance Advice.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/26522/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Using the Windows Management Instrumentation requests

Reading critical registry keys

Launching a service

Creating a file

Stealing user critical data

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/389459

Signature

Found malware configuration

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)

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)

Yara detected AgentTesla

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/7aa9dabbf167e61e1c5b34d23a527daf5aa5981d059b48a6a654cc3d86f2e916/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-07-16 07:56:08 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

22 of 29 (75.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=pku5vo7rm7tb4hc3gtjduut5v5nklga5awnurjvgktgd3bxs5ela._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

23f373877f7e464405b857ef0c110f08a037d6750c3af4b60c16dc709b569c27

AgentTesla

5b35fd125611765dd39be84eabf7e934803ddd4d6b3808794f86d0829378d393

AgentTesla

5c40758ef7c9cbb372474f06bf50315669d361634026e9f5cadb4fd73d974184

AgentTesla

771e1fa33b07cab386e1c9ca1a6a264a68bfbcd1b17fa4252a836ac4cd165e0d

AgentTesla

81eeadcc2553fe9991022470311c8ad197615c465cd06a2992990ad63b14aebb

AgentTesla

a5ce2ebab407749927a5056f7d432f5936675ec94e166e67bf0ea254a63e1abb

AgentTesla

b29ff9fce5bc6dd416237a90d0c64e0b55b145f7a666152966318857ca12e921

AgentTesla

ed1aa53c89a6250abd5ec84f8458338150b89ba617d4ca9b8d1583658a2b44ef

AgentTesla

f062e3eac455d88a826859c5923aa4f64b5741b1826f62043eefcd157947a1cf

AgentTesla

+ 11'092 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

spyware keylogger trojan stealer family:agenttesla

Link:

https://tria.ge/reports/200716-er381lybm2/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetThreadContext

Reads user/profile data of local email clients

Reads data files stored by FTP clients

Reads user/profile data of web browsers

AgentTesla

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