MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c756278503cd67e4ca18fa2acbba31c308153b5801f24b222a42b4b3331c780. 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: 13

Intelligence 13 IOCs YARA 13 File information Comments

SHA256 hash:	3c756278503cd67e4ca18fa2acbba31c308153b5801f24b222a42b4b3331c780
SHA3-384 hash:	3afbdb93aafaec70a313d1b96c4a1dad01afe1e94ce0db68a7102048b6c9d2251b28b765deca226f24975d425f215e9f
SHA1 hash:	8a47f46ab9f3ed5fd132cd8f30ece15e6c47cf21
MD5 hash:	26beb641321ce859d389a80ccd1416d9
humanhash:	nebraska-item-hot-oklahoma
File name:	TTXCopy.xls
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	390'656 bytes
First seen:	2023-11-30 17:42:36 UTC
Last seen:	Never
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	6144:hn1m9kdb41yFtrP+9LFRLLckUXWnNFFtx/4pvbS3SF18XpzeHfOSWZJOOeRs5mOG:hOecoFt+LFRSWznxwdQBpKHfIeRKmOr6
TLSH	T1FF841216F142C72FCC53D134D80B35F9D231CC4E8B48A39EA2C9B3A6D532BE1916ADA5
TrID	58.2% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4) 33.5% (.XLS) Microsoft Excel sheet (32500/1/3) 8.2% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter	lowmal3
Tags:	AgentTesla xls

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump

MalwareBazaar was able to identify 7 sections in this file using oledump:

Section ID	Section size	Section name
1	114 bytes	CompObj
2	244 bytes	DocumentSummaryInformation
3	200 bytes	SummaryInformation
4	99 bytes	MBD000F401F/CompObj
5	200804 bytes	MBD000F401F/Package
6	426 bytes	MBD000F4020/Ole
7	182048 bytes	Workbook

Intelligence

File Origin

# of uploads :

# of downloads :

309

Origin country :

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/461463/

Detection(s):

TwinWave.EvilDoc.FormbookPicturesOfU.XL.220411.UNOFFICIAL

SecuriteInfo.com.Trojan.GenericKD.64927369.3758.6623.UNOFFICIAL

Sanesecurity.Badmacro.Xls.BadUsr1.UNOFFICIAL

SecuriteInfo.com.Trojan.VBA.Agent-16.UNOFFICIAL

SecuriteInfo.com.Other.Malware-gen.19728.9505.UNOFFICIAL

Sanesecurity.Badmacro.Xls.badForm1.UNOFFICIAL

TwinWave.EvilDoc.FormbookPicturesOfU.MSOLE2.220411.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Searching for synchronization primitives

Launching a process

Сreating synchronization primitives

Sending an HTTP GET request

Launching a process by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

Legacy Office File

Link:

https://app.docguard.net/3c756278503cd67e4ca18fa2acbba31c308153b5801f24b222a42b4b3331c780/results/dashboard

Payload URLs

URL

File name

http://192.3.179.162/ssh/microsoftEdgedeletedentirehistorycachehistoryfromthepc.Doc

Embedded Ole

Behaviour

SuspiciousRTF detected

Document image

Image:

Download PNG

Verdict:

Malicious

Labled as:

CVE-2017-0199

Link:

https://www.hybrid-analysis.com/sample/3c756278503cd67e4ca18fa2acbba31c308153b5801f24b222a42b4b3331c780

Label:

Benign

Suspicious Score:

9/10

Score Malicious:

Score Benign:

91%

Link:

https://www.malware.ai/gui/files/?id=deff17e5-db4a-492e-94b3-adee4b1d05c3

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/3c756278503cd67e4ca18fa2acbba31c308153b5801f24b222a42b4b3331c780

Result

Threat name:

AgentTesla, DarkTortilla

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1350706

Signature

Allocates memory in foreign processes

Antivirus detection for dropped file

Antivirus detection for URL or domain

Document embeds suspicious OLE2 link

Excel sheet contains many unusual embedded objects

Found malware configuration

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

Injects a PE file into a foreign processes

Injects files into Windows application

Machine Learning detection for dropped file

Malicious sample detected (through community Yara rule)

Microsoft Office drops suspicious files

Microsoft Office launches external ms-search protocol handler (WebDAV)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Office equation editor drops PE file

Office equation editor establishes network connection

Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)

Office viewer loads remote template

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sample uses string decryption to hide its real strings

Shellcode detected

Sigma detected: EQNEDT32.EXE connecting to internet

Sigma detected: File Dropped By EQNEDT32EXE

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected DarkTortilla Crypter

Behaviour

Behavior Graph:

Download SVG

Detection:

cve-2017-11882-shellcode

Link:

https://mwdb.cert.pl/sample/3c756278503cd67e4ca18fa2acbba31c308153b5801f24b222a42b4b3331c780/

Threat name:

Document-Office.Exploit.CVE-2019-0199

Status:

Malicious

First seen:

2023-11-30 17:43:05 UTC

File Type:

Document

Extracted files:

AV detection:

10 of 23 (43.48%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=hr2we6cqhtlh4tfbr6rkzo5ddqyicu5vqapsjmrcuqvuwmzry6aa._file

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla collection keylogger spyware stealer trojan

Link:

https://tria.ge/reports/231130-waka5sfb68/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Launches Equation Editor

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Uses Volume Shadow Copy WMI provider

Uses Volume Shadow Copy service COM API

outlook_office_path

outlook_win_path

Office loads VBA resources, possible macro or embedded object present

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Abuses OpenXML format to download file from external location

Executes dropped EXE

Loads dropped DLL

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Blocklisted process makes network request

Downloads MZ/PE file

AgentTesla

Malware family:

AgentTesla.v4

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/3c756278503c/report/overview.html

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/3c756278503cd67e4ca18fa2acbba31c308153b5801f24b222a42b4b3331c780

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:	Borland Create hunting rule
Author:	malware-lu

Rule name:	Check_OutputDebugStringA_iat Create hunting rule

Rule name:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerException__SetConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_OLE_file_magic_number Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	malware_shellcode_hash Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect shellcode api hash value

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	SEH__vba Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

xls 3c756278503cd67e4ca18fa2acbba31c308153b5801f24b222a42b4b3331c780

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/461463/

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