MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 752f08f121745d6f396b1ea18f0ea55eaee8a2d29e79a65eefb0501b71c05413. 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: 4

Maldoc score: 8

Intelligence 4 IOCs YARA 6 File information Comments

SHA256 hash:	752f08f121745d6f396b1ea18f0ea55eaee8a2d29e79a65eefb0501b71c05413
SHA3-384 hash:	b2c9439233eff7445b5331d8698a8d1a85075cdcb34e29f391ea111c7a77da73ade7612c97cb7e6a1c5c91f5dcea562b
SHA1 hash:	d7f593b26d2fe28f4305c2f6b40dd3d268fe610d
MD5 hash:	e260c8097e2d38480bdc267b285115fc
humanhash:	shade-nebraska-cold-twelve
File name:	71118461758_1088282166.xlsm
Download:	download sample
Signature	Quakbot Create hunting rule
File size:	512'823 bytes
First seen:	2021-05-18 13:44:19 UTC
Last seen:	Never
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	12288:oiavXAy95SQDGKeP+psM+/jHdO15pghY6ml40VKgGjFR2W+dM:oDfA855HePDb9ODMYdjV5iFRF+S
TLSH	17B42338A20F8C4DD3E9203AEC6D58DDC5762066FE45352DBEA8F460D8461FB5EA4BC4
Reporter	ffforward
Tags:	Quakbot TrickBot xlsm

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: 8

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	EXEC	May run an executable file or a system
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 :

400

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

71118461758_1088282166.xlsm

Verdict:

No threats detected

Analysis date:

2021-05-18 15:52:54 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/cace5a43-9f02-4ed6-850f-ab58128e3ca2

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/158041/

Detection(s):

SecuriteInfo.com.MSOffice.DdeExec-3.UNOFFICIAL

TwinWave.EvilDoc.XLMSumBodyToLove.M2.032421.UNOFFICIAL

TwinWave.EvilDoc.JunkFunkEnjoyTheSilence.M2.20210517.UNOFFICIAL

TwinWave.EvilDoc.OXML.EvilMacroSheetMignightQakTrainToMemphis.20210121.UNOFFICIAL

SecuriteInfo.com.generic.ml.16427.21052.UNOFFICIAL

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a window

Creating a file

Result

Verdict:

Malicious

File Type:

OOXML Excel File with Excel4Macro

Link:

https://app.docguard.net/752f08f121745d6f396b1ea18f0ea55eaee8a2d29e79a65eefb0501b71c05413/results/dashboard

Document image

Image:

Download PNG

Result

Threat name:

Hidden Macro 4.0

Detection:

malicious

Classification:

troj.expl.evad

Score:

68 / 100

Link:

https://www.joesandbox.com/analysis/784064

Signature

Document exploit detected (drops PE files)

Found Excel 4.0 Macro with suspicious formulas

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

Office process drops PE file

Yara detected MalDoc1

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/752f08f121745d6f396b1ea18f0ea55eaee8a2d29e79a65eefb0501b71c05413/

Result

Malware family:

n/a

Score:

1/10

Tags:

n/a

Link:

https://tria.ge/reports/210518-dl3a3c79xe/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

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

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.

Malspam

Quakbot

xlsm 752f08f121745d6f396b1ea18f0ea55eaee8a2d29e79a65eefb0501b71c05413

(this sample)

any.run

https://app.any.run/tasks/f13b1380-6609-4087-9b1d-7fe021ae12b3

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/158041/

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