MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6fa4dbde512b36767535e3b29c26ded4394d244fc21709a453f65f6e62b6833c. 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

Quakbot

Vendor detections: 6

Maldoc score: 6

Intelligence 6 IOCs YARA 7 File information Comments

SHA256 hash:	6fa4dbde512b36767535e3b29c26ded4394d244fc21709a453f65f6e62b6833c
SHA3-384 hash:	f1083d06f14c6306dea164b466a83f3bcd431f5e7fa03c2b89538458d7e6d5f89e011616508f93cf85852580ac7b10fb
SHA1 hash:	aa949d78ac75d862c70d03b5ead602eb65c350a1
MD5 hash:	fca45def45fe9a264a1f6557d764c9ad
humanhash:	white-october-island-zulu
File name:	0868.xlsm
Download:	download sample
Signature	Quakbot Create hunting rule
File size:	25'840 bytes
First seen:	2021-03-11 18:50:38 UTC
Last seen:	2021-03-14 13:30:41 UTC
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	384:DHhG3cmqgvrxVzpUDEmKySw1uWtHN9dVcqbhxZVUlM9zAPAjZ97dpTc:D0NqgnpUDg01uWtDzbxkqZNs
TLSH	91C2E12F8712B48FD0FB4D3DC00BE2E3AB1D56A1191176783830D61A1A059BBD6575DF
Reporter	p5yb34m
Tags:	Quakbot xlsm

p5yb34m

Source:
https://docs.zoho.com/downloaddocument.do?docId=ib6t23ca3135c3d4147e7871aa9ba64092a10

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: 6

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)
Suspicious	Base64 Strings	Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
Suspicious	XLM macrosheet	XLM macrosheet found. It could contain malicious code

Intelligence

File Origin

# of uploads :

# of downloads :

514

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

0868.xlsm

Verdict:

No threats detected

Analysis date:

2021-03-11 18:23:16 UTC

Tags:

macros40

Link:

https://app.any.run/tasks/08890b3d-66c5-482c-ac99-22d041134948

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.sheet.macroEnabled.12

Has a screenshot:

False

Contains macros:

True

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/123865/

Detection(s):

TwinWave.EvilDoc.Zloader.KeepTheirHeadsRingin.20210311.UNOFFICIAL

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a window

Result

Verdict:

Malicious

File Type:

OOXML Excel File with Excel4Macro

Link:

https://app.docguard.net/6fa4dbde512b36767535e3b29c26ded4394d244fc21709a453f65f6e62b6833c/results/dashboard

Result

Threat name:

Hidden Macro 4.0

Detection:

malicious

Classification:

evad

Score:

48 / 100

Link:

https://www.joesandbox.com/analysis/637257

Signature

Found abnormal large hidden Excel 4.0 Macro sheet

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

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/6fa4dbde512b36767535e3b29c26ded4394d244fc21709a453f65f6e62b6833c/

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=n6snxxsrfm3hm5jv4ozjyjw62q4u2jcpyilqtjct6zpw4yvwqm6a._file

Result

Malware family:

n/a

Score:

10/10

Tags:

macro xlm

Link:

https://tria.ge/reports/210311-1cfgth38q6/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SetWindowsHookEx

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/6fa4dbde512b36767535e3b29c26ded4394d244fc21709a453f65f6e62b6833c

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:	Email_stealer_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Email in files like avemaria

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

Rule name:	Microsoft_XLSX_with_Macrosheet Create hunting rule

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

File information

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

Web download

Quakbot

xlsm 6fa4dbde512b36767535e3b29c26ded4394d244fc21709a453f65f6e62b6833c

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/1061928/

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/123865/

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