MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23238fe2dfccd6e140916ab34d11a4b42b84f485e02c102c58b696a11bd3e453. 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:	23238fe2dfccd6e140916ab34d11a4b42b84f485e02c102c58b696a11bd3e453
SHA3-384 hash:	0c57e78a0fe20406a98f65218d1436be540388562f054381f3f203587cafc5106f05f7a9c1921d78d595cda4fb6f5b07
SHA1 hash:	5a6316760d1fc70edac6b78335ba08683e581090
MD5 hash:	9abb6b056df5fd1948ed0008fa402705
humanhash:	floor-fillet-cup-oranges
File name:	Payment Proof.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	715'264 bytes
First seen:	2020-08-03 13:00:52 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:nV/j7apGBfSFGEONuNeAS0NBvW3Tn/mzaWNalJHjPLPDhGTd:eFywxS0NK/CAzPD
Threatray	1'057 similar samples on MalwareBazaar
TLSH	67E4CE1C7BA0856AF55A0FBA5C366103AD34F80B692BF38F35F1526C187A79CAC41F52
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: sharp.co.kr
Sending IP: 103.99.2.5
From: 이주연 계장 (Joo yeon ,LEE)<jy_lee@sharp.co.kr>
Reply-To: sales04person@yandex.com
Subject: Prepayment Status
Attachment: Payment Proof.zip (contains "Payment Proof.exe")

AgentTesla SMTP exfil server:
smtp.taiemerica.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/37832/

Detection(s):

SecuriteInfo.com.Generic.mg.9abb6b056df5fd19.26870.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Unauthorized injection to a recently created process

Creating a file

Using the Windows Management Instrumentation requests

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.adwa.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/407928

Signature

Found malware configuration

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

Modifies the hosts 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)

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/23238fe2dfccd6e140916ab34d11a4b42b84f485e02c102c58b696a11bd3e453/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-03 13:02:09 UTC

AV detection:

21 of 28 (75.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=emry7yw7ztlocqernkzu2enewqvyj5ef4awbalcyw2lkcg6t4rjq._file

Verdict:

malicious

AgentTesla

4f965aee8b694528d2d11d5a80eeee466959650ffcd12b5f0fc28d3a11709e27

AgentTesla

5e57e98ff9180e08404e1ddaf29e274ab4df1149b2cbfbdf3422ae460afbafac

AgentTesla

6cb4b1c8e7a9db252978470e2971438bc9cb1e4036c6dfdeec7229af1f7d56b8

AgentTesla

6f2ed9ee33724651d7fb52edc4dbb3bfde3c19ca12cf5e990952d392305d1c20

AgentTesla

7a61df23e0402188ffbcd17806396f8e71d86e4aae0ae57a3d70a4b83195c01b

AgentTesla

7b0eeeb2adc3fe44102752fbe9a4ed08b3e3bf07fe633f9c3f4ab67eafb6e0aa

AgentTesla

916870a38403e12df5b99954ce22758d7faaec29d338ae29226709c56bcd3d30

AgentTesla

9aacf7241d4ac98976ece20663fe83d6b5f13bfe98b597ae02ed5d39614b9c16

AgentTesla

e2d51d5dea8e3b54091d4575a79b4a535cd201404048f77045c06cd57e79a637

AgentTesla

+ 1'047 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200803-vafnwbn7be/

Behaviour

Modifies registry key

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Reads user/profile data of web browsers

Reads user/profile data of local email clients

Reads data files stored by FTP clients

Drops file in Drivers directory

AgentTesla Payload

AgentTesla

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

Threat name:

AgentTesla

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/23238fe2dfccd6e140916ab34d11a4b42b84f485e02c102c58b696a11bd3e453

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