MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b33598b4c6bea00c8a9bc7b7478af63c18fe046a9050ff74fb58f15e14b6f67. 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: 9

Maldoc score: 3

Intelligence 9 IOCs YARA File information Comments

SHA256 hash:	2b33598b4c6bea00c8a9bc7b7478af63c18fe046a9050ff74fb58f15e14b6f67
SHA3-384 hash:	585f8891c74a7fb86e51360b5f1c306a967d7eee711addda29e61b3ae61884c5a4ec18ca74f93b3f8a5f5161c6d75217
SHA1 hash:	77160f10ad90848d358abe86da95ba2ecf6d3612
MD5 hash:	f4f0b5acd33651cfe58bfd4c9431ae57
humanhash:	april-iowa-romeo-seven
File name:	generic download.xls
Download:	download sample
Signature	ZLoader Create hunting rule
File size:	37'376 bytes
First seen:	2022-02-26 22:10:44 UTC
Last seen:	2022-02-26 23:55:48 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	768:fPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJhmedtkcJV0IZZAqnt2bAa:Xok3hbdlylKsgqopeJBWhZFGkE+cL2Nz
TLSH	T164F262E3B7C59C69CE4883B5486B42A0A722FC51176B938B3385F7353FB5BA05D02687
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: 3

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	27501 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	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 :

450

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

generic download.xls

Verdict:

Malicious activity

Analysis date:

2022-02-26 22:09:34 UTC

Tags:

macros macros40 generated-doc

Link:

https://app.any.run/tasks/db145b21-df69-49e5-aff6-88411bad1937

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/245026/

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.ZloaderShineOnYouCrazyDiamondParts1to9.20201116.UNOFFICIAL

TwinWave.EvilDoc.ZloaderShineOnYouCrazyDiamondParts1to9.M2.20201116.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Sending a custom TCP request

Creating a window

Сreating synchronization primitives

Searching for synchronization primitives

DNS request

Sending an HTTP GET request

Sending a custom TCP request by exploiting the app vulnerability

Launching a process by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

Legacy Excel File

Link:

https://app.docguard.net/2b33598b4c6bea00c8a9bc7b7478af63c18fe046a9050ff74fb58f15e14b6f67/results/dashboard

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

exploit macros macros-on-open zloader

Link:

https://www.filescan.io/uploads/621aa578b94fb38cb4143180/reports/f0b83ac9-30dc-41c7-b672-adfa739d86d4/overview

Label:

Malicious

Suspicious Score:

9.9/10

Score Malicious:

Score Benign:

Link:

https://www.malware.ai/gui/files/?id=6a902aa2-b499-4cb2-842d-169a45317af2

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl.evad.troj

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/946771

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

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

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/2b33598b4c6bea00c8a9bc7b7478af63c18fe046a9050ff74fb58f15e14b6f67/

Threat name:

Document-Excel.Trojan.ZLoader

Status:

Malicious

First seen:

2020-11-27 23:24:54 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/220226-13xt6achap/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Process spawned unexpected child process

Malware Config

Dropper Extraction:

https://syracuse.best/wp-data.php
https://skill.fashion/wp-data.php

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/2b33598b4c6b/report/overview.html

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

Threat name:

Legit

Score:

0.20

Link:

https://yomi.yoroi.company/submissions/2b33598b4c6bea00c8a9bc7b7478af63c18fe046a9050ff74fb58f15e14b6f67

File information

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

Web download

ZLoader

xls 2b33598b4c6bea00c8a9bc7b7478af63c18fe046a9050ff74fb58f15e14b6f67

(this sample)

any.run

https://app.any.run/tasks/db145b21-df69-49e5-aff6-88411bad1937

URLhaus

https://urlhaus.abuse.ch/url/872094/

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/245026/

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