MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef47e6b46e818e6f3110202391cca1ba74b312d9e2d11dd66e62b59c60b49cda. 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:	ef47e6b46e818e6f3110202391cca1ba74b312d9e2d11dd66e62b59c60b49cda
SHA3-384 hash:	1b0cada014eddf9414085fbbf395ea1153835ade52cc99ba6a476cc46697f2cce935f6b9e44b03c26e3e9ad1aa000403
SHA1 hash:	35b3f268aa3643245ceaf29abcd501dde2bdf36e
MD5 hash:	f81a61af35e3819122aa63ad29cec245
humanhash:	white-indigo-white-quiet
File name:	purchase order with drawings.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	716'288 bytes
First seen:	2020-08-03 13:20:02 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep	12288:+eCK++NpMqcQE7QcCKXBHsgXZ7ztannh0m+cThIhbBdNmXt7fvUy:74+1cT77XBXgnh0ml
Threatray	10'863 similar samples on MalwareBazaar
TLSH	80E4CE5C37E09A69F15A1FBE9D365543AD34F80BAC27E38F25B1122C08BA79C5C41F62
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: hosting105.serverhs.org
Sending IP: 194.39.124.63
From: fernandof@frontfuels.pt
Subject: Order in Request for price information
Attachment: purchase order with drawings.r00 (contains "purchase order with drawings.exe")

AgentTesla SMTP exfil server:
mail.totallyanonymous.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/37853/

Detection(s):

SecuriteInfo.com.Generic.mg.f81a61af35e38191.10776.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

Forced shutdown of a system process

Unauthorized injection to a system process

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

96 / 100

Link:

https://www.joesandbox.com/analysis/407974

Signature

Contains functionality to register a low level keyboard hook

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

Initial sample is a PE file and has a suspicious name

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/ef47e6b46e818e6f3110202391cca1ba74b312d9e2d11dd66e62b59c60b49cda/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-03 13:21:06 UTC

AV detection:

21 of 29 (72.41%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=55d6nndoqghg6miqearzdtfbxj2lgewz4lir3vtomk2zyyfuttna._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

4068afbd6b271b237f97b260260971d8d2cb6b7092687eabc56e3353567f3d50

AgentTesla

453e22919069356ebcdd0761b215364026ac41bbb167a590295bb50dbb30be93

AgentTesla

4f965aee8b694528d2d11d5a80eeee466959650ffcd12b5f0fc28d3a11709e27

AgentTesla

6a183615d915485f9dd3885a278e7f3e5f434123a68a8821ff22f13a92fb5d36

AgentTesla

9ab48a539aad8c6729c441a0a32ad02039802420bada44d2bf8aec052255dbde

AgentTesla

e90113ece868954185441f939e93cab4f887465291e620753b411d043131b793

AgentTesla

ec0f65afbe2adb5bccb4d4b0fa58353791deb99e42a2583828442a68af1cd235

AgentTesla

f2f339adc33d22b8ba865095fd503e028390079aee791e028a36a3c29def7c6a

AgentTesla

f8707020bc0b78ae0fab3bd9794993c4cae406d9f13fcb6098f3321cb6bba515

AgentTesla

+ 10'853 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer persistence spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200803-q6l57gvy3e/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Adds Run key to start application

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:

Suspicious File

Score:

0.55

Link:

https://yomi.yoroi.company/submissions/ef47e6b46e818e6f3110202391cca1ba74b312d9e2d11dd66e62b59c60b49cda

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