MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6c5b87a10bf9ab9ed23a624c35959fdc7d95ad725b9d271f64996544bd7ccee8. 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:	6c5b87a10bf9ab9ed23a624c35959fdc7d95ad725b9d271f64996544bd7ccee8
SHA3-384 hash:	4dc3eab64d1bb5ceda4869a4a18d6be7d76c7694230de1afab2501ef51274d9323ab8468cdfa3d132f69542334a32cfc
SHA1 hash:	5cbbd3b3ebfd0af5f8220dffb04384b084b22aa0
MD5 hash:	af416d1b4e44aa2110d6ef7813707ac0
humanhash:	summer-charlie-sixteen-eight
File name:	gunzipped
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	879'616 bytes
First seen:	2020-08-04 11:14:26 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:53/KzzHcPgYxmOE+2Do4pPeRH89fZrKQHznlNLj8JjfbNBX4VZ78DVy:qAIYxPeVZl2QHzlNLjOzNBX4VeV
Threatray	10'611 similar samples on MalwareBazaar
TLSH	D9159EC1F5409D50D8294E3B8D3389924B33BC6BEF42C607349CB6596BF76866A25F83
Reporter	abuse_ch
Tags:	AgentTesla

abuse_ch

Malspam distributing AgentTesla:

HELO: mo4-p07-ob.smtp.rzone.de
Sending IP: 85.215.255.117
From: Rph: Syed Mohammad Imran <info@assag.de>
Subject: QUOTATION
Attachment: SIC0720-00.gz (contains "gunzipped")

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

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/38556/

Detection(s):

SecuriteInfo.com.CIL.HeapOverride.Heur.25591.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a window

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

Unauthorized injection to a system process

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/409156

Signature

Contains functionality to register a low level keyboard hook

Installs a global keyboard hook

Machine Learning detection for sample

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 detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Mail credentials (via file access)

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/6c5b87a10bf9ab9ed23a624c35959fdc7d95ad725b9d271f64996544bd7ccee8/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-04 11:16:09 UTC

AV detection:

24 of 28 (85.71%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=nrnypiil7gvz5ur2mjgdlfm73r6zlllsloosoh3etfsujpl4z3ua._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

319d0b2de48964ad79622ab5177bb6cd05bae9fa537cc8da575498be4b7eda0b

AgentTesla

39c515aecf42295136801c4a1a847d80bc8269ad5cf20c512af98a020cd7a699

AgentTesla

51237c62c155f360275e53df80a26f4aa63afa7ef06301b6f1c5fc351b75a773

AgentTesla

595326dac30807128a4e02eba50b7b26797f836796852f75dc6bbd32e955f5e0

AgentTesla

891ab6a3b8d3a6f3d8fa8b7bd6499c9f63f73501ea0af12ab8ede86d2d6635be

AgentTesla

9af4e7302015b6c26100e4119cc6463224adef98a668b459051615d9edc3573a

AgentTesla

ae74623e356130501507540ec165aa3ca088a7cb27bae50769998b6cb6538f0b

AgentTesla

d90df049d42eb12b0bf2492d413185865d70cebfc3c8c7ad1f8f18c64b0368b1

AgentTesla

df696f5fa3df8ce1eaca951cad491770b1d7aeb6e6326a360bcdb266f6d31620

AgentTesla

+ 10'601 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200804-el8f3d88za/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of SetThreadContext

Reads user/profile data of web browsers

Reads user/profile data of local email clients

AgentTesla Payload

AgentTesla

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

Threat name:

Kryptik

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/6c5b87a10bf9ab9ed23a624c35959fdc7d95ad725b9d271f64996544bd7ccee8

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