MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de9d415f8380055c8fc1a2239b7e1e85f29f0f1ba780c7bb2b9e2921dad93123. 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

Maldoc score: 5

Intelligence 10 IOCs YARA 13 File information Comments

SHA256 hash:	de9d415f8380055c8fc1a2239b7e1e85f29f0f1ba780c7bb2b9e2921dad93123
SHA3-384 hash:	208454ca7904a0a58659cf5ced68088c9edb16d4edbd400dde9103721493c52fef0245793bd6eaea21ee81d44ea52394
SHA1 hash:	b2be8aec9ac3358a4d8d34f2771b74d16de3a910
MD5 hash:	05308f4a7eade713ad7bf35ccbf085a7
humanhash:	april-pluto-carpet-paris
File name:	attached Products with photos.xls
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	227'840 bytes
First seen:	2021-02-04 11:34:04 UTC
Last seen:	2021-02-04 13:47:45 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	6144:nk3hbdlylKsgqopeJBWhZFVE+W4LxlnAyIHtjQADMOfSRFvkf3OsQaoNVwTpNGc3:pNjQSNfS3veOQ2eTX+S
TLSH	5524015BB1A7C982D90A07749AB18B22B71FFC252F9743027309F72C29BEDD48943957
Reporter	abuse_ch
Tags:	AgentTesla xls

abuse_ch

Malspam distributing AgentTesla:

HELO: 107-174-142-107-host.colocrossing.com
Sending IP: 107.174.142.107
From: akhtar@elogistics.ae
Subject: Enquiry from Rajiv Sarkar (INDIA)
Attachment: attached Products with photos.xls

AgentTesla payload URL:
http://185.215.150.204/file/dog.exe

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 id

Maldoc score: 5

Application name is Microsoft Excel

Office document is in OLE format

OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section ID	Section size	Section name
1	288 bytes	DocumentSummaryInformation
2	224 bytes	SummaryInformation
3	222789 bytes	Workbook

OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

Type	Keyword	Description
AutoExec	Auto_Open	Runs when the Excel Workbook is opened
Suspicious	EXEC	May run an executable file or a system
Suspicious	Hex Strings	Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin

# of uploads :

# of downloads :

104

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

attached_Products_with_photos.xls

Verdict:

Malicious activity

Analysis date:

2021-02-04 09:51:15 UTC

Tags:

macros macros40 loader

Link:

https://app.any.run/tasks/dd8e3f90-f1fa-4d2a-8a3c-4cefa61e01d6

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Verdict:

Malicious

File type:

application/vnd.ms-excel

Has a screenshot:

False

Contains macros:

True

Detection(s):

TwinWave.EvilDoc.SUPExcel4MacroVines.201109.UNOFFICIAL

TwinWave.EvilDoc.DOCXRSTRGOOD.NEW-OBJECT.201125.UNOFFICIAL

TwinWave.EvilDoc.DOCXRSTRGOOD.NEW-OBJECT.201208.UNOFFICIAL

TwinWave.EvilDoc.Excel4HTTPSpliceNaughtyByNatureNotCauseIHateYa.20210131.UNOFFICIAL

TwinWave.EvilDoc.XLS4SunriseAutobahn.20210115.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden window

Launching a process

DNS request

Sending a custom TCP request

Running batch commands by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

Legacy Office File

Link:

https://app.docguard.net/de9d415f8380055c8fc1a2239b7e1e85f29f0f1ba780c7bb2b9e2921dad93123/results/dashboard

Document image

Image:

Download PNG

Result

Verdict:

MALICIOUS

Details

Excel 4.0 Macro

Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.

Macro Execution Coercion

Detected a document that appears to social engineer the user into activating embedded logic.

Autostarting Excel Macro Sheet

Excel contains Macrosheet logic that will trigger automatically upon document open.

Result

Threat name:

Hidden Macro 4.0 AgentTesla

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/599098

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Allocates memory in foreign processes

Bypasses PowerShell execution policy

Document exploit detected (process start blacklist hit)

Drops PE files to the document folder of the user

Found Excel 4.0 Macro with suspicious formulas

Found obfuscated Excel 4.0 Macro

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Obfuscated command line found

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Powershell drops PE 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)

Sigma detected: Microsoft Office Product Spawning Windows Shell

Sigma detected: Powershell downloading file from url shortener site

Sigma detected: Scheduled temp file as task from temp location

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

Uses the Telegram API (likely for C&C communication)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/de9d415f8380055c8fc1a2239b7e1e85f29f0f1ba780c7bb2b9e2921dad93123/

Threat name:

Document-Office.Downloader.EncDoc

Status:

Malicious

First seen:

2021-02-04 09:18:37 UTC

AV detection:

18 of 29 (62.07%)

Threat level:

3/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=32oucx4dqacvzd6buirzw7q6qxzj6dy3u6ampozltyusdwwzgerq._file

Result

Malware family:

n/a

Score:

10/10

Tags:

macro ransomware xlm

Link:

https://tria.ge/reports/210204-5xpm7h1wax/

Behaviour

Checks processor information in registry

Creates scheduled task(s)

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Blocklisted process makes network request

Executes dropped EXE

Process spawned unexpected child process

Malware Config

Dropper Extraction:

https://cutt.ly/WkhzNqw

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/de9d415f8380055c8fc1a2239b7e1e85f29f0f1ba780c7bb2b9e2921dad93123

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:	ach_AgentTesla_20200929 Create hunting rule
Author:	abuse.ch
Description:	Detects AgentTesla PE

Rule name:	ach_ZLoader_xls_20201029 Create hunting rule
Author:	abuse.ch
Description:	Detects ZLoader XLS

Rule name:	Email_stealer_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Email in files like avemaria

Rule name:	Excel_Hidden_Macro_Sheet Create hunting rule

Rule name:	INDICATOR_OLE_Excel4Macros_DL2 Create hunting rule
Author:	ditekSHen
Description:	Detects OLE Excel 4 Macros documents acting as downloaders

Rule name:	IPPort_combo_mem Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	MALWARE_Win_AgentTeslaV3 Create hunting rule
Author:	ditekSHen
Description:	AgentTeslaV3 infostealer payload

Rule name:	Select_from_enumeration Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	SharedStrings Create hunting rule
Author:	Katie Kleemola
Description:	Internal names found in LURK0/CCTV0 samples

Rule name:	SUSP_Excel4Macro_AutoOpen Create hunting rule
Author:	John Lambert @JohnLaTwC
Description:	Detects Excel4 macro use with auto open / close

Rule name:	UAC_bypass_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	UAC bypass in files like avemaria

Rule name:	win_agent_tesla_v1 Create hunting rule
Author:	Johannes Bader @viql
Description:	detects Agent Tesla

Rule name:	ZloaderXLSBehavior Create hunting rule

File information

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

Malspam

AgentTesla

xls de9d415f8380055c8fc1a2239b7e1e85f29f0f1ba780c7bb2b9e2921dad93123

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/990233/

Delivery method

Distributed via e-mail attachment

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