MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cfee90218720f31491495dd353027017808fb3b9524d6c86ddfd016a372f627c. 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

Threat unknown

Vendor detections: 8

Maldoc score: 9

Intelligence 8 IOCs YARA 5 File information Comments

SHA256 hash:	cfee90218720f31491495dd353027017808fb3b9524d6c86ddfd016a372f627c
SHA3-384 hash:	a40d864a1ff07551c0de6de894ee621fa0c03bace6ecbfcb9f21c3d8e9a0644b66b9697cb9829f2fba97c37826c92988
SHA1 hash:	d22b56bedc58de7da73d647a5f3048b9cabc17d7
MD5 hash:	11e9376ee19889ee5c08e816b1d3b231
humanhash:	spaghetti-hydrogen-virginia-fourteen
File name:	11e9376e_by_Libranalysis
Download:	download sample
File size:	16'284 bytes
First seen:	2021-05-06 14:01:09 UTC
Last seen:	2021-05-06 15:20:38 UTC
File type:	xlsx
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	192:Aexlse/fgCsPdtUs20MGXBS7IZ8jHnjr2gd1lfuNOHiBAY9QxizT3W7+p+1iTv7H:AKlseQC2zzBY7IuW0Ah9QITMaTDPPMq
TLSH	1C72AE5DC2B478A5C2329E7E808842F6E9417085AA02D45DAD15B3B95B832CF0BDB1FA
Reporter	Libranalysis

Libranalysis

Uploaded as part of the sample sharing project

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: 9

OLE dump

MalwareBazaar was able to identify 12 sections in this file using oledump:

Section ID	Section size	Section name
A1	479 bytes	PROJECT
A2	104 bytes	PROJECTwm
A3	6236 bytes	VBA/IHvURPI84kP5_
A4	991 bytes	VBA/Sheet1
A5	1242 bytes	VBA/ThisWorkbook
A6	4446 bytes	VBA/_VBA_PROJECT
A7	1715 bytes	VBA/__SRP_0
A8	264 bytes	VBA/__SRP_1
A9	267 bytes	VBA/__SRP_2
A10	284 bytes	VBA/__SRP_3
A11	583 bytes	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
AutoExec	workbook_open	Runs when the Excel Workbook is opened
Suspicious	Run	May run an executable file or a system command
Suspicious	CreateObject	May create an OLE object
Suspicious	Chr	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
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 :

Origin country :

n/a

Vendor Threat Intelligence

Verdict:

Legit

File type:

application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Has a screenshot:

False

Contains macros:

True

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/151640/

Detection(s):

TwinWave.EvilDoc.WSHCROVARCHRMATHLONGGONE.20200524.UNOFFICIAL

TwinWave.EvilDoc.CROAndTheTangerineDream.M1.20200630.UNOFFICIAL

TwinWave.EvilDoc.CROOHSherrie.20210504.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden window

Launching a process

DNS request

Sending an HTTP GET request

Creating a process from a recently created file

Creating a file in the %temp% directory

Creating a file

Launching cmd.exe command interpreter

Deleting a recently created file

Setting browser functions hooks

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Forced shutdown of a system process

Running batch commands by exploiting the app vulnerability

Unauthorized injection to a system process

Unauthorized injection to a browser process

Result

Verdict:

Malicious

File Type:

Excel File with Macro

Link:

https://app.docguard.net/cfee90218720f31491495dd353027017808fb3b9524d6c86ddfd016a372f627c/results/dashboard

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/cfee90218720f31491495dd353027017808fb3b9524d6c86ddfd016a372f627c

Details

Macro with Startup Hook

Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.

Document With No Content

Document contains little or no semantic information.

Result

Threat name:

Unknown

Detection:

malicious

Classification:

evad

Score:

64 / 100

Link:

https://www.joesandbox.com/analysis/716436

Signature

Document contains an embedded VBA macro which may execute processes

Document contains an embedded VBA with many randomly named variables

Document contains an embedded VBA with many string operations indicating source code obfuscation

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cfee90218720f31491495dd353027017808fb3b9524d6c86ddfd016a372f627c/

Threat name:

Document-Word.Trojan.Valyria

Status:

Malicious

First seen:

2021-05-06 13:09:18 UTC

AV detection:

16 of 47 (34.04%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z7xjaimhedzrjekjlxjvgatqc6ai7m5zkjgwzbw57uawunzpmj6a._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro

Link:

https://tria.ge/reports/210506-7r6asfhny6/

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.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/cfee90218720f31491495dd353027017808fb3b9524d6c86ddfd016a372f627c

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:	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.

Cape

https://www.capesandbox.com/analysis/151640/

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