MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b488e96e5403f73b44c169fa2dc9489444c01ac1e9400106be215b813609ab8a. 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: 5

Intelligence 7 IOCs YARA File information Comments

SHA256 hash:	b488e96e5403f73b44c169fa2dc9489444c01ac1e9400106be215b813609ab8a
SHA3-384 hash:	f8ad5ba4a8cd0884873d456a9a1854ea1ec01b3c801844a076906d716342df592ace126721e7a4dd8455c81053e96bc6
SHA1 hash:	3fd18bb19a7815dee0d03be7a1d0759e3780e26e
MD5 hash:	482ca668733925c391419fc7d4fd56ad
humanhash:	cardinal-cup-washington-hawaii
File name:	agent2.xls
Download:	download sample
Signature	ZLoader Create hunting rule
File size:	37'376 bytes
First seen:	2022-02-11 22:06:20 UTC
Last seen:	2022-02-11 23:50:50 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	768:KPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJkN5KpvsCMe1bWP:eok3hbdlylKsgqopeJBWhZFGkE+cL2Np
TLSH	T186F273F7BBD5ED65CA448335486B8290A713EC515BAB938B3345F7293F72BA04E02187
Reporter	adm1n_usa32
Tags:	xls ZLoader

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	4096 bytes	DocumentSummaryInformation
2	4096 bytes	SummaryInformation
3	27222 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	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 :

396

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/240994/

Detection(s):

TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWhere.20200720.UNOFFICIAL

TwinWave.EvilDoc.ZloaderUnicodeRoadToNoWherePartDuex.20200730.UNOFFICIAL

TwinWave.EvilDoc.Excel4.BlackSubmarines.2020.UNOFFICIAL

TwinWave.EvilDoc.ZloaderGasPanic.20210216.UNOFFICIAL

TwinWave.EvilDoc.Excel4UnicodeTransPoseReadyOrNot.ENABLE.M2.210222.UNOFFICIAL

TwinWave.EvilDoc.Excel4UnicodeTransPoseReadyOrNot.ENABLE.210222.UNOFFICIAL

TwinWave.EvilDoc.ZloaderShineOnYouCrazyDiamondParts1to9.M2.20201116.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

DNS request

Sending a custom TCP request

Creating a window

Сreating synchronization primitives

Searching for synchronization primitives

Result

Verdict:

Malicious

File Type:

Legacy Excel File

Link:

https://app.docguard.net/b488e96e5403f73b44c169fa2dc9489444c01ac1e9400106be215b813609ab8a/results/dashboard

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

macros macros-on-open

Link:

https://www.filescan.io/uploads/6206de09289e2f3e4fc57d66/reports/33a4ab09-8699-48cb-8b99-68419eb3845e/overview

Label:

Malicious

Suspicious Score:

9.9/10

Score Malicious:

Score Benign:

Link:

https://www.malware.ai/gui/files/?id=255ab285-4045-45b6-8e38-5e6a3d91018c

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl.evad.troj

Score:

96 / 100

Link:

https://www.joesandbox.com/analysis/938619

Signature

Antivirus / Scanner detection for submitted sample

Document exploit detected (creates forbidden files)

Document exploit detected (process start blacklist hit)

Injects code into the Windows Explorer (explorer.exe)

Microsoft Office drops suspicious files

Multi AV Scanner detection for submitted file

Potential malicious VBS script found (has network functionality)

Potential malicious VBS script found (suspicious strings)

Sigma detected: WScript or CScript Dropper

System process connects to network (likely due to code injection or exploit)

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b488e96e5403f73b44c169fa2dc9489444c01ac1e9400106be215b813609ab8a/

Threat name:

Document-Excel.Trojan.ZLoader

Status:

Malicious

First seen:

2020-11-29 00:50:15 UTC

File Type:

Document

Extracted files:

AV detection:

22 of 43 (51.16%)

Threat level:

5/5

Result

Malware family:

n/a

Score:

10/10

Tags:

macro xlm

Link:

https://tria.ge/reports/220211-11mamsdcf7/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Drops file in Windows directory

Process spawned unexpected child process

Malware Config

Dropper Extraction:

https://markens.online/wp-data.php

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

File information

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

Web download

ZLoader

xls b488e96e5403f73b44c169fa2dc9489444c01ac1e9400106be215b813609ab8a

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/874750/

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/240994/

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