MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 595326dac30807128a4e02eba50b7b26797f836796852f75dc6bbd32e955f5e0. 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:	595326dac30807128a4e02eba50b7b26797f836796852f75dc6bbd32e955f5e0
SHA3-384 hash:	3cb5371962063071777b9fd5850a0782b44ab51b44a8de9e19c0ad2fa7742cb188bec44078a4eb310bb92ed7fa8111e6
SHA1 hash:	cca33abddbbe28dbd21908e506cea109632e0c79
MD5 hash:	3b5943fa64cdcc61fbbc7c610264f21f
humanhash:	cola-thirteen-papa-monkey
File name:	SUL-MR-MS-0005 Silo.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	671'232 bytes
First seen:	2020-08-05 09:15:29 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:+34jX9YO7cGAn5FvdsaDaVXUce52w6Rdfel6x6Z5eeeeeeeeeeeeeeeee/eeeeeq:+34r+GuvvdBKElhOoU
Threatray	10'617 similar samples on MalwareBazaar
TLSH	2BE4E14EAC85568AF0B14D7B5D721BA35D26D49FF524C103A5B42D27203BF8EBC62F22
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: xa0.24.msllownpl.cf
Sending IP: 46.101.97.155
From: Byoungsoo Min <kaimin@hec.co.kr>
Subject: [LINE] Inquiry of Silo for Sulfindo VCM/PVC project in Indonesia
Attachment: SUL-MR-MS-0005 Silo.rar (contains "SUL-MR-MS-0005 Silo.exe")

AgentTesla SMTP exfil server:
mail.sinantombul.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/39315/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a window

Unauthorized injection to a recently created process

Creating a file

Using the Windows Management Instrumentation requests

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/410768

Signature

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

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/595326dac30807128a4e02eba50b7b26797f836796852f75dc6bbd32e955f5e0/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-05 05:52:47 UTC

AV detection:

25 of 29 (86.21%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=lfjsnwwdbadrfcsoalv2kc33ez4x7a3hs2cs65o4no6tf2kv6xqa._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

5ab5e18b5ffe74e4c3ccf07f2e19f2daf006338022e64806b284eb8e0f0e1c15

AgentTesla

5da82dd52f913ff5d416ec5479133a0f89cd5d835d2fbd964f32191f642ca9fa

AgentTesla

6c5b87a10bf9ab9ed23a624c35959fdc7d95ad725b9d271f64996544bd7ccee8

AgentTesla

918973702e97922d932c32d86618ebd35116fb2d67a93cafd0f53a5b7b30da29

AgentTesla

9af4e7302015b6c26100e4119cc6463224adef98a668b459051615d9edc3573a

AgentTesla

a4da467fed5249b5013e1dc1daa882e15b94fb97ac5a3ee9c2a8abc5a7cfffc0

AgentTesla

b9d2e1648eb5b6ac43f87569aa94768d261700b36fd610ac222dfdecd73006a4

AgentTesla

ba4c584519a8fa8a90a906dea86ebe75bb3464190a152467d32ebdefcfc4e643

AgentTesla

d90df049d42eb12b0bf2492d413185865d70cebfc3c8c7ad1f8f18c64b0368b1

AgentTesla

+ 10'607 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200805-yv1nggeh82/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

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:

AgentTesla

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/595326dac30807128a4e02eba50b7b26797f836796852f75dc6bbd32e955f5e0

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