MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 220db73fb64e12e0c5af39d14b9b4c329f95c1fc6ef3a101690a20a7fd5addc8. 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: 13

Maldoc score: 5

Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash:	220db73fb64e12e0c5af39d14b9b4c329f95c1fc6ef3a101690a20a7fd5addc8
SHA3-384 hash:	8b34b1f14b6a17836f2ae76888e9336a1a9a897af9052f52726ba6e0ed03875aae085bde96b410f2a2384d316c156db7
SHA1 hash:	a8be8de57f309b6d801927a61f1797dd2259dd6e
MD5 hash:	11176ae35f862e849600b7517ed25897
humanhash:	pasta-connecticut-artist-green
File name:	FILE_13.xls
Download:	download sample
Signature	SilentBuilder Create hunting rule
File size:	78'336 bytes
First seen:	2022-05-23 11:55:21 UTC
Last seen:	2022-05-23 12:58:16 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	1536:GSKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgYI+hD8nTLqQrRrZws8EKXi3C:FKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgW
TLSH	T182733B19B66D985EF91ACB3488B743D6A333EC108B5F0A433249F3D56FB59A05B0390B
TrID	80.2% (.XLS) Microsoft Excel sheet (32500/1/3) 19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter	lowmal3
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: 5

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	68069 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	Hex Strings	Hex-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 :

217

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

FILE_13.xls

Verdict:

Malicious activity

Analysis date:

2022-05-24 02:13:11 UTC

Tags:

macros

Link:

https://app.any.run/tasks/6dd8854f-ac3c-4c18-bbe2-2122e872a80c

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/273626/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Сreating synchronization primitives

DNS request

Creating a file

Creating a process with a hidden window

Changing a file

Launching a process

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/220db73fb64e12e0c5af39d14b9b4c329f95c1fc6ef3a101690a20a7fd5addc8/results/dashboard

Payload URLs

URL

File name

https://newkano.com/wp-admin/66rIsrVwoPKUsjcAs/

WorkBook

Document image

Image:

Download PNG

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

greyware keylogger macros macros-on-open packed regsvr32 regsvr32.exe shell32.dll

Link:

https://www.filescan.io/uploads/628b7652370bb1455cc080eb/reports/3f35c17a-20e9-4764-b015-c4b296225354/overview

Label:

Malicious

Suspicious Score:

5.8/10

Score Malicious:

58%

Score Benign:

42%

Link:

https://www.malware.ai/gui/files/?id=4dc762a6-ee79-4b40-a691-3c4fc5396bb0

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/220db73fb64e12e0c5af39d14b9b4c329f95c1fc6ef3a101690a20a7fd5addc8

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/220db73fb64e12e0c5af39d14b9b4c329f95c1fc6ef3a101690a20a7fd5addc8/

Threat name:

Document-Excel.Trojan.Emotet

Status:

Malicious

First seen:

2022-05-23 11:56:06 UTC

File Type:

Document

Extracted files:

AV detection:

16 of 26 (61.54%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=eig3op5wjyjobrnphhiuxg2mgkpzlqp4n3z2caljbiqkp7k23xea._file

Result

Malware family:

emotet

Score:

10/10

Tags:

family:emotet botnet:epoch5 banker macro trojan xlm

Link:

https://tria.ge/reports/220523-n3z83agecj/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Loads dropped DLL

Downloads MZ/PE file

Emotet

Process spawned unexpected child process

Malware Config

C2 Extraction:

194.9.172.107:8080
66.42.57.149:443
165.22.73.229:8080
202.29.239.162:443
76.189.152.228:1645
59.185.164.123:8382
115.19.43.159:30377
104.248.225.227:8080
54.38.242.185:443
103.133.214.242:8080
78.47.204.80:443
210.57.209.142:8080
103.41.204.169:8080
118.98.72.86:443
88.217.172.165:8080
87.106.97.83:7080
85.25.120.45:8080
195.77.239.39:8080
37.44.244.177:8080
36.67.23.59:443
93.41.142.108:30345
42.6.66.255:39545
160.16.143.191:7080
38.217.125.207:49663
54.38.143.246:7080
159.69.237.188:443
68.183.93.250:443
54.37.228.122:443
190.90.233.66:443
37.59.209.141:8080
29.146.139.51:30005
18.37.240.161:6409
178.62.112.199:8080
59.148.253.194:443
196.44.98.190:8080
79.235.8.209:58224
202.28.34.99:8080
78.46.73.125:443
51.68.141.164:8080
207.148.81.119:8080
93.104.209.107:8080
185.148.168.220:8080
100.21.231.107:63582
103.85.95.4:8080
62.171.178.147:8080
175.126.176.79:8080
134.122.119.23:8080
202.134.4.210:7080
116.124.128.206:8080
45.71.195.104:8080
110.235.83.107:7080
103.56.149.105:8080
68.183.91.111:8080
119.44.217.160:39748
5.56.132.177:8080
195.154.146.35:443
217.182.143.207:443
54.37.106.167:8080
85.214.67.203:8080
90.63.125.244:30283
188.225.32.231:4143
103.42.58.120:7080
139.196.72.155:8080

Dropper Extraction:

https://newkano.com/wp-admin/66rIsrVwoPKUsjcAs/
http://ocalogullari.com/inc/Wcm82enrs8/
https://myphamcuatui.com/assets/OPVeVSpO/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/220db73fb64e/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/220db73fb64e12e0c5af39d14b9b4c329f95c1fc6ef3a101690a20a7fd5addc8

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:	Excel_Hidden_Macro_Sheet Create hunting rule

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 220db73fb64e12e0c5af39d14b9b4c329f95c1fc6ef3a101690a20a7fd5addc8

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/273626/

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