MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cca67a24e74ca5338ae686b160c64726cfb02bbb1dba480960dee4832ce72749. 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

SilentBuilder

Vendor detections: 12

Maldoc score: 12

Intelligence 12 IOCs YARA 2 File information Comments

SHA256 hash:	cca67a24e74ca5338ae686b160c64726cfb02bbb1dba480960dee4832ce72749
SHA3-384 hash:	ce67450c06428259f110ad91831d062e5b1546109eefa565475bc01bd0bd750b017040cdee84e71aaec8c5bf80cd7ff7
SHA1 hash:	d4549914524230ec49131890c0f7ba72cca56414
MD5 hash:	acce8dc1b5c31886d9a63508f7c17803
humanhash:	arkansas-nineteen-arkansas-london
File name:	INFO_15964078.xls
Download:	download sample
Signature	SilentBuilder Create hunting rule
File size:	97'792 bytes
First seen:	2022-07-13 11:12:06 UTC
Last seen:	2022-07-13 12:15:04 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	1536:UkKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgNHuS4hcTO97v7UYdEJm5:bKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg0
TLSH	T114A33A45B799DA1EF625833149E787A67333FC204F6B47472224B3266FB99E04B0721A
TrID	80.2% (.XLS) Microsoft Excel sheet (32500/1/3) 19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter	TeamDreier
Tags:	SilentBuilder xls

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: 12

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	87354 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
Hex String	SegWT	5365675754
Hex String	ScEB	53634542
Hex String	5cF5	35634635
Hex String	cV4dR	6356346452
Hex String	WceR	57636552
Suspicious	Windows	May enumerate application windows (if combined with Shell.Application object)
Suspicious	URLDownloadToFileA	May download files from the Internet
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 macro	XLM macro found. It may contain malicious code

Intelligence

File Origin

# of uploads :

# of downloads :

252

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

INFO_15964078.xls

Verdict:

Malicious activity

Analysis date:

2022-07-13 11:58:15 UTC

Tags:

macros loader opendir

Link:

https://app.any.run/tasks/559b3b15-d09b-46cc-b463-654e8b0ae458

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/286999/

Detection(s):

Sanesecurity.Badmacro.Xls.encdl.UNOFFICIAL

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.URLDOWNLOADTOFILE.200415.UNOFFICIAL

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.SHELLEXECUTE.200416.UNOFFICIAL

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.SHELLEXECUTE.200524.UNOFFICIAL

TwinWave.EvilDoc.Excel4DragoTrainingMontage.20210204.UNOFFICIAL

TwinWave.EvilDoc.XL4MStringFractures.20210921.UNOFFICIAL

TwinWave.EvilDoc.XL4QakyFeaturingNothingNowhere.M2.20210611.UNOFFICIAL

TwinWave.EvilDoc.XL4DataopItWasGoodLivingWithYou.20211109.UNOFFICIAL

TwinWave.EvilDoc.DataOpGodGaveRockNRoll2U.20211215.UNOFFICIAL

TwinWave.EvilDoc.XL4QakyFeaturingNothingNowhere.M2.20220215.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Result

Verdict:

Malicious

File Type:

Legacy Excel File

Link:

https://app.docguard.net/cca67a24e74ca5338ae686b160c64726cfb02bbb1dba480960dee4832ce72749/results/dashboard

Document image

Image:

Download PNG

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

greyware macros macros-on-open packed regsvr32

Link:

https://www.filescan.io/uploads/62cea9230b00dfa734ec2068/reports/84606c3c-074f-4f23-9afe-7781b5f8d3e5/overview

Label:

Benign

Suspicious Score:

3.8/10

Score Malicious:

38%

Score Benign:

62%

Link:

https://www.malware.ai/gui/files/?id=85a4b310-2bca-41f9-acc4-9074c395b9b5

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/cca67a24e74ca5338ae686b160c64726cfb02bbb1dba480960dee4832ce72749

Details

Autostarting Excel Macro Sheet

Excel contains Macrosheet logic that will trigger automatically upon document open.

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cca67a24e74ca5338ae686b160c64726cfb02bbb1dba480960dee4832ce72749/

Threat name:

Document-Excel.Trojan.Abracadabra

Status:

Malicious

First seen:

2022-07-12 01:02:50 UTC

File Type:

Document

Extracted files:

AV detection:

22 of 41 (53.66%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=zsthujhhjssthcxgq2ywbrshe3h3ak53dw5eqcla33siglhhe5eq._file

Result

Malware family:

emotet

Score:

10/10

Tags:

family:emotet botnet:epoch5 banker macro suricata trojan xlm

Link:

https://tria.ge/reports/220713-nbehaaged9/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Gathers network information

Gathers system information

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Loads dropped DLL

Downloads MZ/PE file

Emotet

Process spawned unexpected child process

suricata: ET MALWARE W32/Emotet CnC Beacon 3

Malware Config

C2 Extraction:

103.71.99.57:8080
103.224.241.74:8080
157.245.111.0:8080
37.44.244.177:8080
103.41.204.169:8080
64.227.55.231:8080
103.254.12.236:7080
103.85.95.4:8080
157.230.99.206:8080
165.22.254.236:8080
85.214.67.203:8080
54.37.228.122:443
195.77.239.39:8080
128.199.217.206:443
190.145.8.4:443
165.232.185.110:8080
188.165.79.151:443
178.62.112.199:8080
54.37.106.167:8080
104.244.79.94:443
43.129.209.178:443
87.106.97.83:7080
202.134.4.210:7080
178.238.225.252:8080
198.199.70.22:8080
62.171.178.147:8080
175.126.176.79:8080
128.199.242.164:8080
88.217.172.165:8080
104.248.225.227:8080
85.25.120.45:8080
139.196.72.155:8080
188.225.32.231:4143
202.29.239.162:443
103.126.216.86:443
210.57.209.142:8080
93.104.209.107:8080
196.44.98.190:8080
5.253.30.17:7080
46.101.98.60:8080
103.56.149.105:8080
190.107.19.179:443
139.59.80.108:8080
36.67.23.59:443
78.47.204.80:443
83.229.80.93:8080
174.138.33.49:7080
118.98.72.86:443
37.187.114.15:8080
202.28.34.99:8080
198.27.67.35:8080
190.107.19.180:8080
58.96.74.42:443
116.125.120.88:443
180.250.21.2:443
165.227.153.100:8080
62.141.45.103:443
134.209.164.181:8080
212.98.224.97:8080
159.65.163.220:443
128.199.93.156:7080
198.211.118.165:443
203.217.140.239:8080

Dropper Extraction:

https://fikti.bem.gunadarma.ac.id/SDM/YH8OJ1Zz8miBX/
http://ebuysa.co.za/yt-assets/yZ30/
http://3dstudioa.com.br/files/1ubPAB/
http://boardmart.co.za/images/DvMHPbTLn/

Malware family:

Emotet

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/cca67a24e74c/report/overview.html

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/cca67a24e74ca5338ae686b160c64726cfb02bbb1dba480960dee4832ce72749

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:	Qbot Create hunting rule
Author:	Dhanunjaya
Description:	Yara Rule to Detect Qbot

Rule name:	SUSP_Excel4Macro_AutoOpen Create hunting rule
Author:	John Lambert @JohnLaTwC
Description:	Detects Excel4 macro use with auto open / close

File information

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

Malspam

SilentBuilder

xls cca67a24e74ca5338ae686b160c64726cfb02bbb1dba480960dee4832ce72749

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/286999/

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