MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd315439089bed5676f19ac3eaae192497d36a5ecc5419ec783afb7440ac17fe. 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

ZLoader

Vendor detections: 7

Maldoc score: 12

Intelligence 7 IOCs YARA 8 File information Comments

SHA256 hash:	cd315439089bed5676f19ac3eaae192497d36a5ecc5419ec783afb7440ac17fe
SHA3-384 hash:	6c42acd41dc68eb63f9bded60ed7bf1912669e2ba6c8216fdd4879282033cb7e2c468ca84d2074348d0be30255b6f45e
SHA1 hash:	ed537e657e3debbd7877fcffea6feafd3c983d3a
MD5 hash:	4a5ec51358843b301c202bd898abfdb3
humanhash:	river-oregon-butter-six
File name:	Doc_109474 1849714094797.xls
Download:	download sample
Signature	ZLoader Create hunting rule
File size:	55'296 bytes
First seen:	2021-03-31 15:18:48 UTC
Last seen:	2021-03-31 16:05:08 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	1536:lFk3hbdlylKsgqopeJBWhZFGkE+cL2NdAfcxsTcxtm8XpOmMi:lFk3hbdlylKsgqopeJBWhZFGkE+cL2Nv
TLSH	4B43A6A6B785D846C99907364CD6C7EA2326FC119F53834B3289F71E6F76A80CE02647
Reporter	cocaman
Tags:	INVOICE xls ZLoader

cocaman

Malicious email (T1566.001)
From: ""NetSuite" <system@sent-via.netsuite.com>" (likely spoofed)
Received: "from 93-32-95-48.ip32.fastwebnet.it (93-32-95-48.ip32.fastwebnet.it [93.32.95.48]) "
Date: "Wed, 31 Mar 2021 14:25:44 +0100"
Subject: "Invoice #-274573"
Attachment: "Doc_274573 1381318949899.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: 12

Application name is unknown

Office document is in OLE format

Office document contains VBA Macros

OLE dump

MalwareBazaar was able to identify 16 sections in this file using oledump:

Section ID	Section size	Section name
1	108 bytes	CompObj
2	308 bytes	DocumentSummaryInformation
3	200 bytes	SummaryInformation
4	33248 bytes	Workbook
5	522 bytes	_VBA_PROJECT_CUR/PROJECT
6	107 bytes	_VBA_PROJECT_CUR/PROJECTwm
7	5116 bytes	_VBA_PROJECT_CUR/VBA/Module1
8	991 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
9	991 bytes	_VBA_PROJECT_CUR/VBA/Sheet2
10	999 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
11	3154 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
12	2046 bytes	_VBA_PROJECT_CUR/VBA/__SRP_0
13	331 bytes	_VBA_PROJECT_CUR/VBA/__SRP_1
14	504 bytes	_VBA_PROJECT_CUR/VBA/__SRP_2
15	682 bytes	_VBA_PROJECT_CUR/VBA/__SRP_3
16	579 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	Run	May run an executable file or a system command
Suspicious	Lib	May run code from a DLL
Suspicious	URLDownloadToFileA	May download files from the Internet
Suspicious	Chr	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
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 :

167

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

58e79993-1755-45d8-87b2-08d8f445f3ffef1d6dee-64d2-c4f3-ceef-ee8cedc4eab5 (1).eml

Verdict:

Malicious activity

Analysis date:

2021-03-31 13:37:59 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/28e70b22-9861-47bb-8113-4ec53c9fccf4

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:

n/a

Link:

https://www.capesandbox.com/analysis/129457/

Detection(s):

TwinWave.EvilDoc.DridexSureShot.20210301.UNOFFICIAL

TwinWave.EvilDoc.DridexSureShot.M2.20210301.UNOFFICIAL

TwinWave.EvilDoc.Excel4DownloaderIWouldDie4U.20210201.UNOFFICIAL

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a window

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/cd315439089bed5676f19ac3eaae192497d36a5ecc5419ec783afb7440ac17fe/results/dashboard

Payload URLs

URL

File name

Module1.DOC_REVIEW

WorkBook

Document image

Image:

Download PNG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cd315439089bed5676f19ac3eaae192497d36a5ecc5419ec783afb7440ac17fe/

Threat name:

Document-Office.Infostealer.Dridex

Status:

Malicious

First seen:

2021-03-31 15:19:05 UTC

File Type:

Document

Extracted files:

AV detection:

14 of 29 (48.28%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=zuyvioiitpwvm5xrtlb6vlqzesl5g2s6zrkbt3dyhl5xiqfmc77a._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro

Link:

https://tria.ge/reports/210331-kpvlrmzvxs/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Office loads VBA resources, possible macro or embedded object present

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

Threat name:

Dridex

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/cd315439089bed5676f19ac3eaae192497d36a5ecc5419ec783afb7440ac17fe

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

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

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

ZLoader

xls cd315439089bed5676f19ac3eaae192497d36a5ecc5419ec783afb7440ac17fe

(this sample)

Delivery method

Distributed via e-mail attachment

Dropping

ZLoader

Cape

https://www.capesandbox.com/analysis/129457/

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