MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 582bb52402f47d9d47b4c786419e32e60a19ae400fdf59654218d6fff01edab2. 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: 10

Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash:	582bb52402f47d9d47b4c786419e32e60a19ae400fdf59654218d6fff01edab2
SHA3-384 hash:	e3e7ccda35f13109e3d585f5bdf5aa313b8e42d4fb03a830d1f0efd9b2c7eee5348e09af4e1158e3e4e3f000748d07df
SHA1 hash:	fc8cc115714764c47df742f0d3adb21a31fee0ef
MD5 hash:	1d60d25de052afc103404099266f057b
humanhash:	white-river-bakerloo-william
File name:	INSTRUCTIONS COPY.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	757'248 bytes
First seen:	2020-08-06 05:52:54 UTC
Last seen:	2020-08-12 11:56:47 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:5vxMoEWvCaoF8ZBl8Cq/n4Kb8cmaIEWghRHx/fH2G:Fx+WKaoeB8X4KYcqEWoRH7
Threatray	10'908 similar samples on MalwareBazaar
TLSH	ADF46A2471710AA7D3EC80B54F4C724449E3A2B51A8EFBC0EDB72895F6926B1772CC5B
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: belina.co.cr
Sending IP: 95.211.208.49
From: facturacion@belina.co.cr
Subject: RE: PAYMENT INSTRUCTIONS
Attachment: INSTRUCTIONS COPY.zip (contains "INSTRUCTIONS COPY.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/40090/

Detection(s):

SecuriteInfo.com.MSIL.Kryptik.VFR-1.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

Unauthorized injection to a system process

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

92 / 100

Link:

https://www.joesandbox.com/analysis/412166

Signature

Allocates memory in foreign processes

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)

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)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/582bb52402f47d9d47b4c786419e32e60a19ae400fdf59654218d6fff01edab2/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-06 05:54:08 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

25 of 29 (86.21%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=lav3kjac6r6z2r5uy6dedhrs4yfbtlsab7pvszkcddlp74a63kza._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

1a128360798520eca9e82a0f2b97de12068788c89686adad3b44d68f9fc671e6

AgentTesla

965d84cabf414da83736bbcd3e2286a0dc907325ebe17bb0d4da2659edd02052

AgentTesla

99938664e2162f06313d017b275c7da25b45d578177911808a986f416377e15d

AgentTesla

a70a683c541f11a78b9f07bf9e11d8f0f593cd7795fa213b3c1db17c284ee4dc

AgentTesla

ac8a58b595935beadffe17dbb536d1a015ff5b1b7681ddae0d781afaa8caa253

AgentTesla

b1135688496020eb3e075121b22fb9c726c6021068ce415be82d8e48540dc563

AgentTesla

cf569e5361d68bca55156e7931606bd5acea860b5824dda249285c824ee32aa6

AgentTesla

e4b3d4a35096c766362119548bef2b259aa8278153c5b6277d618a45620b4129

AgentTesla

e55e9cd2c9714d2307617574b4426ba13b351433955ea049125bd0eaf8276c5c

AgentTesla

+ 10'898 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer trojan spyware family:agenttesla

Link:

https://tria.ge/reports/200806-ffljcp3ew2/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

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/582bb52402f47d9d47b4c786419e32e60a19ae400fdf59654218d6fff01edab2

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