MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f86c3bcdcbdc824fa4b223f898b09d86fc67669e7517209a7515c86ef887c129. 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: 7

Maldoc score: 25

Intelligence 7 IOCs YARA 6 File information Comments

SHA256 hash:	f86c3bcdcbdc824fa4b223f898b09d86fc67669e7517209a7515c86ef887c129
SHA3-384 hash:	a28b6f8e5c1c2ebf131eed306574a4bf6ff9154af61c90df068f50d694f3a13a5ac704c9dd41b0fd605bddca75a7d68c
SHA1 hash:	8005b46b4452b2d80f2dc87bd4d73f6107b08ab6
MD5 hash:	057b9fdb3e858450e8ed79e0fdb831a8
humanhash:	red-zebra-robin-fruit
File name:	INVC-190318PD.xlsm
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	2'792'713 bytes
First seen:	2020-12-30 09:25:48 UTC
Last seen:	Never
File type:	xlsm
MIME type:	application/octet-stream
ssdeep	1536:XtNzhLLecqtNyYRB5pLhKJ4fZU4+VOECX9V2Zx0nIcjELcjXKYIK:bhudtNyYBpLsJ4xUMX7sx0n9jKxK
TLSH	8AD54415F10B7252D5D6E57800BA27E2B373993B0D025B862BF24B7C2CD22F527D6E49
Reporter	abuse_ch
Tags:	AgentTesla xlsm

abuse_ch

Malspam distributing unidentified malware:

HELO: smtp-relay-01.business-access.co.uk
Sending IP: 88.215.61.86
From: Butler <dbutler@perdixwildlife.co.uk>
Subject: FW: PRO/INV#C-190318PD
Attachment: INVC-190318PD.xlsm

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: 25

OLE dump

MalwareBazaar was able to identify 26 sections in this file using oledump:

Section ID	Section size	Section name
A1	658 bytes	PROJECT
A2	173 bytes	PROJECTwm
A3	734 bytes	VBA/Module1
A4	91749 bytes	VBA/Module2
A5	977 bytes	VBA/Sheet1
A6	977 bytes	VBA/Sheet2
A7	977 bytes	VBA/Sheet3
A8	977 bytes	VBA/Sheet4
A9	985 bytes	VBA/ThisWorkbook
A10	4607 bytes	VBA/_VBA_PROJECT
A11	1636 bytes	VBA/__SRP_0
A12	221 bytes	VBA/__SRP_1
A13	112 bytes	VBA/__SRP_2
A14	341 bytes	VBA/__SRP_3
A15	646 bytes	VBA/dir
B1	76 bytes	CompObj
B2	19840 bytes	Ole10Native
C1	76 bytes	CompObj
C2	28462 bytes	Ole10Native
D1	102 bytes	CompObj
D2	62 bytes	Ole
D3	256 bytes	Equation Native

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
Hex String	vVEFV	7656454656
IOC	SHELL32.dll	Executable file name
Suspicious	Open	May open a file
Suspicious	write	May write to a file (if combined with Open)
Suspicious	Kill	May delete a file
Suspicious	vbNormal	May run an executable file or a system command
Suspicious	run	May run an executable file or a system command
Suspicious	ShellExecuteA	May run an executable file or a system command
Suspicious	SHELL32	May run an executable file or a system command
Suspicious	Create	May execute file or a system command through WMI
Suspicious	Lib	May run code from a DLL
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)
Suspicious	Base64 Strings	Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin

# of uploads :

# of downloads :

341

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

INVC-190318PD.xlsm

Verdict:

Malicious activity

Analysis date:

2020-12-30 09:48:55 UTC

Tags:

macros ole-embedded macros-on-open exploit CVE-2017-11882 opendir loader

Link:

https://app.any.run/tasks/ced576fc-6fc8-4405-b9cc-7ae195a793f4

Note:

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

Verdict:

Legit

File type:

application/vnd.ms-excel.sheet.macroEnabled.12

Has a screenshot:

False

Contains macros:

False

Detection(s):

TwinWave.EvilDoc.DOCXRSTRGOOD.SCRIPTING.FILESYSTEMOBJECT.200630.UNOFFICIAL

Sanesecurity.Badmacro.Xls.explmsg.UNOFFICIAL

TwinWave.EvilDoc.ExcelSploitPlainSong.20200420.UNOFFICIAL

SecuriteInfo.com.JS.Downloader-24.UNOFFICIAL

SecuriteInfo.com.VBS.Agent-25.UNOFFICIAL

Sanesecurity.Badmacro.Xls.ObjResp.UNOFFICIAL

MiscreantPunch.EvilDoc.Exploit.2017-11882.M3.UNOFFICIAL

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a window

Result

Verdict:

Malicious

File Type:

OOXML Excel File with Embedding Objects

Link:

https://app.docguard.net/f86c3bcdcbdc824fa4b223f898b09d86fc67669e7517209a7515c86ef887c129/results/dashboard

Result

Verdict:

MALICIOUS

Details

Macro with Startup Hook

Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.

Macro Contains Suspicious String

Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...

Base64 Encoded URL

Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.

Macro with DLL Reference

Detected macro logic that will load additional functionality from Dynamically Linked Libraries (DLLs). While not explicitly malicious, this is a common tactic for accessing APIs that are not otherwised exposed via Visual Basic for Applications (VBA).

Document With No Content

Document contains little or no semantic information.

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl.evad

Score:

68 / 100

Link:

https://www.joesandbox.com/analysis/571975

Signature

Document contains an embedded macro with GUI obfuscation

Document contains an embedded VBA macro which may execute processes

Document contains an embedded VBA macro with suspicious strings

Document contains an embedded VBA with functions possibly related to ADO stream file operations

Document contains an embedded VBA with many string operations indicating source code obfuscation

Multi AV Scanner detection for submitted file

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/f86c3bcdcbdc824fa4b223f898b09d86fc67669e7517209a7515c86ef887c129/

Threat name:

Script-WScript.Trojan.Valyria

Status:

Malicious

First seen:

2020-12-30 03:59:49 UTC

AV detection:

16 of 48 (33.33%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=7bwdxtol3sbe7jfsep4jrme5q36gozu6oulsbgtvcxeg56ehyeuq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

persistence

Link:

https://tria.ge/reports/201230-zm1t38m8ls/

Behaviour

Enumerates system info in registry

Launches Equation Editor

Modifies Internet Explorer settings

Script User-Agent

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

NTFS ADS

Suspicious use of FindShellTrayWindow

Office loads VBA resources, possible macro or embedded object present

Suspicious use of SetThreadContext

Adds Run key to start application

Loads dropped DLL

Blocklisted process makes network request

Executes dropped EXE

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

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

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

Rule name:	Ping_Del_method_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	cmd ping IP nul del

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

File information

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

Malspam

AgentTesla

xlsm f86c3bcdcbdc824fa4b223f898b09d86fc67669e7517209a7515c86ef887c129

(this sample)

Delivery method

Distributed via e-mail attachment

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample