MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 699fcd73045f130ed6d9f790ce57323049329082db6b0d34103e822283b93433. 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: 8

Maldoc score: 4

Intelligence 8 IOCs YARA 9 File information Comments

SHA256 hash:	699fcd73045f130ed6d9f790ce57323049329082db6b0d34103e822283b93433
SHA3-384 hash:	37775a35e2e41e59380b73255febc8bd531fb3e6dc4f1db3b7a40208ee9b3e4ec227e60a6244a29701a07878e2a5e110
SHA1 hash:	d3133c5364561ffd30df1d3a5bab8b6049851e98
MD5 hash:	571f6d891e07da6d9e3e136ca8681a47
humanhash:	autumn-whiskey-timing-princess
File name:	172112-05_17_21.xls
Download:	download sample
Signature	ZLoader Create hunting rule
File size:	280'576 bytes
First seen:	2021-05-24 05:42:33 UTC
Last seen:	2021-05-25 07:45:29 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	6144:7k3hbdlylKsgqopeJBWhZFVE+W2NdAWSUEZtY55lf402AZvinblt4kS:xUgE34ZAU5t
TLSH	B054D5C6AFA3CDB8CB00E5308CEE46416324EC15496D87C73649F6357EF9E34AD56298
Reporter	cocaman
Tags:	INVOICE xls ZLoader

cocaman

Malicious email (T1566.001)
From: "QuickBooks <quickbooks@notification.intuit.com>" (likely spoofed)
Received: "from [151.34.158.150] (unknown [151.34.158.150]) "
Date: "Mon, 17 May 2021 13:03:28 +0100"
Subject: "Reminder: Invoice 039036"
Attachment: "039036-05_17_21.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

Application name is unknown

Office document is in OLE format

Office document contains VBA Macros

OLE dump

MalwareBazaar was able to identify 15 sections in this file using oledump:

Section ID	Section size	Section name
1	108 bytes	CompObj
2	296 bytes	DocumentSummaryInformation
3	200 bytes	SummaryInformation
4	253738 bytes	Workbook
5	488 bytes	_VBA_PROJECT_CUR/PROJECT
6	83 bytes	_VBA_PROJECT_CUR/PROJECTwm
7	1135 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
8	4495 bytes	_VBA_PROJECT_CUR/VBA/Sheet2
9	4246 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
10	3340 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
11	1834 bytes	_VBA_PROJECT_CUR/VBA/__SRP_0
12	311 bytes	_VBA_PROJECT_CUR/VBA/__SRP_1
13	1179 bytes	_VBA_PROJECT_CUR/VBA/__SRP_2
14	614 bytes	_VBA_PROJECT_CUR/VBA/__SRP_3
15	540 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	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 :

159

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

371621-05_17_21.xls

Verdict:

No threats detected

Analysis date:

2021-05-17 11:45:36 UTC

Tags:

macros macros40

Link:

https://app.any.run/tasks/4abb32f3-6089-49b2-9af3-037564f13924

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/161208/

Detection(s):

Sanesecurity.Badmacro.XlsM.Hide.UNOFFICIAL

Sanesecurity.Rogue.0hr.20210518-0749.MacroImg.UNOFFICIAL

TwinWave.EvilDoc.DridexTakeMyBreathAway.20210517.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/699fcd73045f130ed6d9f790ce57323049329082db6b0d34103e822283b93433/results/dashboard

Document image

Image:

Download PNG

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/790023

Signature

Document contains an embedded VBA macro which may execute processes

Document exploit detected (creates forbidden files)

Document exploit detected (drops PE files)

Document exploit detected (process start blacklist hit)

Document exploit detected (UrlDownloadToFile)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Office process drops PE file

Sigma detected: BlueMashroom DLL Load

Sigma detected: Microsoft Office Product Spawning Windows Shell

Sigma detected: Regsvr32 Anomaly

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/699fcd73045f130ed6d9f790ce57323049329082db6b0d34103e822283b93433/

Threat name:

Script-Macro.Infostealer.Dridex

Status:

Malicious

First seen:

2021-05-17 11:47:14 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=ngp424yel4jq5vwz66im4vzsgbetfeec3nvq2naqh2bcfa5zgqzq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro

Link:

https://tria.ge/reports/210524-bfa8g5bcc2/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of FindShellTrayWindow

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:

Kryptik

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/699fcd73045f130ed6d9f790ce57323049329082db6b0d34103e822283b93433

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_20200514 Create hunting rule
Author:	abuse.ch

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 699fcd73045f130ed6d9f790ce57323049329082db6b0d34103e822283b93433

(this sample)

Delivery method

Distributed via e-mail attachment

Dropping

ZLoader

Cape

https://www.capesandbox.com/analysis/161208/

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