MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5af795fb7f2afc8329d025b4b5f053942b82c75f4b3796a1a53f77e97e74019d. 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: 8

Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash:	5af795fb7f2afc8329d025b4b5f053942b82c75f4b3796a1a53f77e97e74019d
SHA3-384 hash:	4cce4ad6071dca185c0084e376eb660105280d78956bb94e2eebb6d2b5b5215e30c10b8b25ca6d56fc1de09b5b1847de
SHA1 hash:	ca2acc40e012b00b007900071cca1e334a49c3d5
MD5 hash:	6d22a496faacb5fd4c4717256c219b5c
humanhash:	utah-vegan-lion-montana
File name:	Attached Proforma-xls.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	687'616 bytes
First seen:	2020-08-31 05:59:46 UTC
Last seen:	2020-08-31 12:31:39 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:rz1cK4RiDC/sKZl1zcRS5/wQ8/U7VyP+3tT5qeBKCqcY:rzqK7DC/ZP1zcR44I5k+5qEKCqc
Threatray	10'285 similar samples on MalwareBazaar
TLSH	06E42221397C5B62D9FA8FFC01AD356043756E2A928DF35D4C82A5DB12AFB404A0BF53
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: gmail.com
Sending IP: 172.93.148.185
From: Bal Krishan <purchase8@neometrixgroup.com>
Reply-To: Bal Krishan <surnit9041@gmail.com>
Subject: FW: Proforma Attached
Attachment: Attached Proforma-xls.xz (contains "Attached Proforma-xls.exe")

AgentTesla SMTP exfil server:
smtp.yandex.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/53271/

Detection(s):

SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Using the Windows Management Instrumentation requests

Creating a file

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/454908

Signature

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

Injects a PE file into a foreign processes

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted 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)

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Sigma detected: Scheduled temp file as task from temp location

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)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/5af795fb7f2afc8329d025b4b5f053942b82c75f4b3796a1a53f77e97e74019d/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-30 17:40:18 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

22 of 28 (78.57%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ll3zl637fl6igkoqew2ll4ctsqvyfr27jm3zninfh536s7tuagoq._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

5f43ed1dd1031fde4fb86f92ed0f656ca4a468ba5a987d6c76b332914dee7d51

AgentTesla

6438b80d095ec295859cb2b1c099f1ae2ac0485705a447b991e84b551e40047e

AgentTesla

6f2bf53e333052923d34bb892bfbe30575270fa08cf40828767bf92bca15f52d

AgentTesla

cfefe5d485164b99beeb1aea8faca9e61f8a53d4b742ebf733922a0896511b50

AgentTesla

d171c033a6424ac3d0fc71f4323c1c340256c02228d4fb0c49124af4abab6be0

AgentTesla

e7a2025af0fd110ad2777947b6c77a3a0a6325ca6634374e589f220b073f70b0

AgentTesla

edb014655bf6c7464325b44856019f5fb1aedb94fe9ed988faa0c77d82875d3c

AgentTesla

f544548656da95993af2c115a9af5eb499741c1c9914ef556bbd599391ae769e

AgentTesla

fb51d5ec0f3c5b0ea82d4a37cd9a53e070efaaa4f067ea89301c089e0dea8a76

AgentTesla

+ 10'275 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer evasion spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200831-sgznfea7te/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Maps connected drives based on registry

Checks BIOS information in registry

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Looks for VMWare Tools registry key

AgentTesla Payload

Looks for VirtualBox Guest Additions in registry

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/5af795fb7f2afc8329d025b4b5f053942b82c75f4b3796a1a53f77e97e74019d

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