MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9fb885a66da2ed08983a46519b97dc55e002913f859dfa1e54917f63e4d7f8f4. 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

AveMariaRAT

Vendor detections: 12

Maldoc score: 4

Intelligence 12 IOCs YARA 15 File information Comments

SHA256 hash:	9fb885a66da2ed08983a46519b97dc55e002913f859dfa1e54917f63e4d7f8f4
SHA3-384 hash:	b3ca59fb81313f80b73c92f4b53c148fdb51d25a145970fa9fcc7d4ccec18085be36088f3e148f47e5308a38e940dceb
SHA1 hash:	a7c747634398db8043be97f6ccdf8c56b34c3f14
MD5 hash:	d372ad70b1aa9e46b21e2ebfcd71f9a0
humanhash:	cup-december-pizza-undress
File name:	product list and specification.xls
Download:	download sample
Signature	AveMariaRAT Create hunting rule
File size:	280'064 bytes
First seen:	2024-01-30 07:09:57 UTC
Last seen:	Never
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	6144:vYunXY35qAOJl/YrLYz+WrNhZF+E+fgL+0dD8ivSbVQUMIeXgj0QH1iXYDb9tTCd:vBa3bVQUMIeXgj0QH1d/9t
TLSH	T1E054D001FE808616E455473549F78BAA5325FC429F934B0F329CB72E3DB43D46E2BA62
TrID	46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4) 26.7% (.XLS) Microsoft Excel sheet (32500/1/3) 20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2) 6.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter	abuse_ch
Tags:	AveMariaRAT 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 id

Maldoc score: 4

OLE dump

MalwareBazaar was able to identify 24 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	94 bytes	MBD0002B8FE/CompObj
5	62 bytes	MBD0002B8FE/Ole
6	20909 bytes	MBD0002B8FE/CONTENTS
7	114 bytes	MBD0002B8FF/CompObj
8	708 bytes	MBD0002B8FF/DocumentSummaryInformation
9	23248 bytes	MBD0002B8FF/SummaryInformation
10	97808 bytes	MBD0002B8FF/Workbook
11	113 bytes	MBD0002B900/CompObj
12	11571 bytes	MBD0002B900/Package
13	99 bytes	MBD0002B901/CompObj
14	11611 bytes	MBD0002B901/Package
15	432 bytes	MBD0002B902/Ole
16	94264 bytes	Workbook
17	533 bytes	_VBA_PROJECT_CUR/PROJECT
18	104 bytes	_VBA_PROJECT_CUR/PROJECTwm
19	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
20	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet2
21	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet3
22	985 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
23	2644 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
24	553 bytes	_VBA_PROJECT_CUR/VBA/dir

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
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 :

377

Origin country :

Vendor Threat Intelligence

Verdict:

Legit

File type:

application/vnd.ms-excel

Has a screenshot:

False

Contains macros:

False

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/473563/

Detection(s):

SecuriteInfo.com.IMG.Phish.20422.21836.UNOFFICIAL

TwinWave.EvilDoc.OleWishDottedQuadPolicykill.20220908.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 Excel File with Macro

Link:

https://app.docguard.net/9fb885a66da2ed08983a46519b97dc55e002913f859dfa1e54917f63e4d7f8f4/results/dashboard

Payload URLs

URL

File name

http://198.12.89.27/hcl/hclupdationprocessstartedrecentlytoimprovethequalityofservicetoconfirmentirethingsfineformtheside.doC

Embedded Ole

Behaviour

SuspiciousRTF detected

Document image

Image:

Download PNG

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

macros sload

Link:

https://www.filescan.io/uploads/65b8a0cf0eab2d16054a2807/reports/8b62d0af-6537-45ef-a4d9-77581299459e/overview

Verdict:

Malicious

Labled as:

CVE-2017-0199

Link:

https://www.hybrid-analysis.com/sample/9fb885a66da2ed08983a46519b97dc55e002913f859dfa1e54917f63e4d7f8f4

Label:

Benign

Suspicious Score:

3.3/10

Score Malicious:

34%

Score Benign:

66%

Link:

https://www.malware.ai/gui/files/?id=7916560c-5e92-4da3-95f7-e8cab6f52720

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/9fb885a66da2ed08983a46519b97dc55e002913f859dfa1e54917f63e4d7f8f4

Details

Document With Few Pages

Document contains between one and three pages of content. Most malicious documents are sparse in page count.

Result

Threat name:

AveMaria

Detection:

malicious

Classification:

phis.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1383149

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

Adds a directory exclusion to Windows Defender

Allocates memory in foreign processes

Antivirus detection for dropped file

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to hide user accounts

Contains functionality to inject threads in other processes

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal e-mail passwords

Document exploit detected (process start blacklist hit)

Excel sheet contains many unusual embedded objects

Found evasive API chain (may stop execution after checking mutex)

Found malware configuration

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

Increases the number of concurrent connection per server for Internet Explorer

Injects a PE file into a foreign processes

Installs a global keyboard hook

Installs new ROOT certificates

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 domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

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

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

Powershell uses Background Intelligent Transfer Service (BITS)

Shellcode detected

Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments

Sigma detected: EQNEDT32.EXE connecting to internet

Sigma detected: Equation Editor Network Connection

Sigma detected: File Dropped By EQNEDT32EXE

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

Sigma detected: Scheduled temp file as task from temp location

Sigma detected: Suspicious Binary In User Directory Spawned From Office Application

Sigma detected: Suspicious Microsoft Office Child Process

Sigma detected: Suspicious Process Patterns NTDS.DIT Exfil

Snort IDS alert for network traffic

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 / registry access)

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

Writes to foreign memory regions

Yara detected AveMaria stealer

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/9fb885a66da2ed08983a46519b97dc55e002913f859dfa1e54917f63e4d7f8f4/

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=t64iljtnulwqrgb2izizxf64kxqafej7qwo7uhsusf7whzgx7d2a._file

Result

Malware family:

warzonerat

Score:

10/10

Tags:

family:warzonerat infostealer rat

Link:

https://tria.ge/reports/240130-hzc2gacdfq/

Behaviour

Checks processor information in registry

Creates scheduled task(s)

Enumerates system info in registry

Launches Equation Editor

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

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

Downloads MZ/PE file

Warzone RAT payload

WarzoneRat, AveMaria

Malware Config

C2 Extraction:

wz-lk.giftsbybierd.com:4434

Malware family:

Warzone

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/9fb885a66da2/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/9fb885a66da2ed08983a46519b97dc55e002913f859dfa1e54917f63e4d7f8f4

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:	informational_win_ole_protected Create hunting rule
Author:	Jeff White (karttoon@gmail.com) @noottrak
Description:	Identify OLE Project protection within documents.

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:	office_document_vba Create hunting rule
Author:	Jean-Philippe Teissier / @Jipe_
Description:	Office document with embedded VBA
Reference:	https://github.com/jipegit/

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

AveMariaRAT

xls 9fb885a66da2ed08983a46519b97dc55e002913f859dfa1e54917f63e4d7f8f4

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/473563/

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