MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7d00562a448b79a2caf497b33b4b00e78f3ffda5c8726cabfa1f100784d21304. 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:	7d00562a448b79a2caf497b33b4b00e78f3ffda5c8726cabfa1f100784d21304
SHA3-384 hash:	b52b237e0d6b37bda72148a688539086a06eb275fe3bcb74cf7cc0c855d19ef0345535151105a7d2f5c582feac754e8c
SHA1 hash:	cfcb43c08cfeb90458ecf125818e81b8ab49a059
MD5 hash:	40950f3f5c788c564243b11e97ebb6c1
humanhash:	beryllium-mississippi-muppet-princess
File name:	nna.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	653'824 bytes
First seen:	2020-08-12 15:26:38 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep	12288:PWENFAH+nY3xE42Q/tL34mNmBR6MTjtMruTJkc6D9aCrL/UFMbmQj:PNhnwxz2QVv9MeSE
Threatray	10'663 similar samples on MalwareBazaar
TLSH	59D47CAC31147AEFC86BD579CA681D68EBA07477830B9253A02701ED9E4D987DF250F3
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: rdns0.kiuont.xyz
Sending IP: 104.131.93.244
From: Micheal Weber <office@kiuont.xyz>
Reply-To: Micheal Weber <mweber@weberandfabiiyan.com>
Subject: Re: Property details and Contract
Attachment: Executed Sale and Purchase contract.doc

AgentTesla payload URL:
https://mrmotos.pt/vivo/nna.exe

AgentTesla SMTP exfil server:
mail.bryant-solicitors.co.uk:587

AgentTesla SMTP exfil email address:
alex@bryant-solicitors.co.uk

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/44265/

Detection(s):

SecuriteInfo.com.Fareit-FYE40950F3F5C78.28055.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Unauthorized injection to a recently created process

Creating a file

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/423053

Signature

.NET source code contains potential unpacker

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found malware configuration

Injects a PE file into a foreign processes

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)

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

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 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

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/7d00562a448b79a2caf497b33b4b00e78f3ffda5c8726cabfa1f100784d21304/

Threat name:

ByteCode-MSIL.Spyware.Noon

Status:

Malicious

First seen:

2020-08-12 15:28:06 UTC

AV detection:

26 of 29 (89.66%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=puafmksern42fsxus6ztwsya46ht77nfzbzgzk72d4iapbgscmca._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

56f2c7b9d0efa06b177d87a0617b2a4ccb000d72599d046e3cc014628a4ca497

AgentTesla

640e087a78aa77a9bb49027500f1f29f9d31f5b64c13c99b690ea813d0737fd4

AgentTesla

643b70ebd1828e52f2a4e7eff1efd42705fed0c7dbf80e8ebeaa06b777e10616

AgentTesla

6c7624c020bb11d5803286dc0fc1d9ee44d21be97207573051bcd322091a731b

AgentTesla

7013e2ac13e42bbee07bb06c5f9c2e4b625a6599a64bccf0e844ba2e995e0737

AgentTesla

8be1266645d388fa35124c58831cbd83fdc9b6faac7ad44ddaf4b0f6b9d2fd09

AgentTesla

abceb68e2fe21fbd17661f01f93f21eaa7c0350cbeaaa14060875e2a0f7a63ae

AgentTesla

dab8c3350d525d66785c80647dd39cac8fc981c7a18c66b8bea5526926c6aad6

AgentTesla

f150b76e622e7da135e3d47a20c424aa20a6efeb839b15d301c17233bdcbc9f4

AgentTesla

+ 10'653 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200812-pk7byyt95a/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

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:

Malicious File

Score:

0.91

Link:

https://yomi.yoroi.company/submissions/7d00562a448b79a2caf497b33b4b00e78f3ffda5c8726cabfa1f100784d21304

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