MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39bc6a4f00ac88e4f38ad0f92ffd1d5ccd1eab42b18a5b4c3ea07a771867ba0f. 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:	39bc6a4f00ac88e4f38ad0f92ffd1d5ccd1eab42b18a5b4c3ea07a771867ba0f
SHA3-384 hash:	f3f3bfcf127692d48ac4342d7209fc073f9451fabd7bdd614b0f3d9430675fc6bb1487ce9bae075d218f29476406ef9e
SHA1 hash:	e2a0d7663583787bad5841c132687e01e8f49794
MD5 hash:	b747173fa58fad29716670ed19b8af5b
humanhash:	hydrogen-seventeen-black-happy
File name:	Pago de Factura.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	860'672 bytes
First seen:	2020-07-17 16:25:18 UTC
Last seen:	2020-07-17 17:23:26 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:FrMnqjzGYIdjMxMSo15GXacXYp3uyAjrMnnmQ2k4zUNXApRqxdNdCHksKROY1Tw2:FrvxguwcLjr4XArqdQHksqOY1wLPe
Threatray	10'801 similar samples on MalwareBazaar
TLSH	61053AF79A4D81C2C4AF9EBCC49207710997EDC5F0F9A20B03667C363676BA0D88556B
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: almendro.mapasolar.com
Sending IP: 87.106.181.151
From: José María Seva <info@ircastco.com>
Subject: PAGO DE FACTURA JUNIO
Attachment: Pago de Factura.zip (contains "Pago de Factura.exe")

AgentTesla FTP exfil server:
ftp.mse.com.cy:21

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/27473/

Detection(s):

SecuriteInfo.com.Trojan.Siggen9.59981.12163.32271.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Connection attempt to an infection source

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/389155

Signature

Injects a PE file into a foreign processes

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)

Sigma detected: Capture Wi-Fi password

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

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 harvest and steal WLAN passwords

Tries to steal Mail credentials (via file access)

Uses netsh to modify the Windows network and firewall settings

Yara detected AgentTesla

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/39bc6a4f00ac88e4f38ad0f92ffd1d5ccd1eab42b18a5b4c3ea07a771867ba0f/

Threat name:

ByteCode-MSIL.Infostealer.Fareit

Status:

Malicious

First seen:

2020-07-17 16:27:06 UTC

AV detection:

25 of 31 (80.65%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=hg6gutyavseoj44k2d4s77i5ltgr5k2cwgffwtb6ub5hogdhxihq._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

1b8967747fc03efc0867c491b18e3f3be0b35b9c068499ae3d35f6e860f6ec7d

AgentTesla

36ffff33584d663103bfe648c7ef4a78538587b88709976c5583721afe658c91

AgentTesla

4afdd7386b6ad197804804056bc5fbd985844ab55d8068d25a0199f0551c84cb

AgentTesla

53ca297fc02055a16c16c76f8effbfd4ba59e66d7a255da581463289f1c0edd8

AgentTesla

6b239e6d6e691710a8482ee2679b39cbf372c15db6e82a00757fb7c4a7f36127

AgentTesla

8ece67aa85fe6065793915cbb131064fbbae056c12a0402eac038c23eedda754

AgentTesla

9196d4a0129eb39729deea14281b69dfd4e59dfa145e3f186ac6abab385fb14e

AgentTesla

9a2467d92dd6c5e322439643e05041f151b6bf6e9c8c410f96fe6ab969ea8882

AgentTesla

b691873f9ddb9f018597d0551714cc1cf7148d02c3e9e75e3f5db59ff89fa59e

AgentTesla

+ 10'791 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

spyware persistence keylogger trojan stealer family:agenttesla

Link:

https://tria.ge/reports/200717-rq959czva2/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetThreadContext

Modifies service

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.

Threat name:

Unknown

Score:

0.87

Link:

https://yomi.yoroi.company/submissions/39bc6a4f00ac88e4f38ad0f92ffd1d5ccd1eab42b18a5b4c3ea07a771867ba0f

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