MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8aec4315c943a59aaef38a465653c6deee872da8909265f65594cc1d16f96b9. 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: 2


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8aec4315c943a59aaef38a465653c6deee872da8909265f65594cc1d16f96b9
SHA3-384 hash: 8d3aba059a1af4688e19385a973a77ad6e97916d52d3b8e972e97dd3d6fcf46cd87f05b8fcaf99f8090ddb70bcf30e9b
SHA1 hash: 97db05d3057442618da7bd3e580779bc63922451
MD5 hash: 3889aa6189dfce000ee7df363290a33f
humanhash: hamper-mexico-grey-cardinal
File name:PACK_526940167.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:93'184 bytes
First seen:2022-11-09 10:39:54 UTC
Last seen:2022-11-09 12:55:56 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dggbCXuZH4gb4CEn9J4Z8HM:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgG
TLSH T18E932A86B2F9D89DEA19C734889B4390A762EC204B564BCB3248F3667FB0D501F539D7
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter pr0xylife
Tags:Emotet epoch5 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: 2
OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
382898 bytesWorkbook
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
SuspiciousXLM macroXLM macro found. It may contain malicious code

Intelligence

File Origin
# of uploads :
2
# of downloads :
263
Origin country :
IE IE
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/331122/
Detection(s):
TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.URLDOWNLOADTOFILE.200415.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.SHELLEXECUTE.200416.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.SHELLEXECUTE.200524.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.Excel4DragoTrainingMontage.20210204.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4MStringFractures.20210921.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4QakyFeaturingNothingNowhere.M2.20210611.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4DataopItWasGoodLivingWithYou.20211109.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DataOpGodGaveRockNRoll2U.20211215.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4QakyFeaturingNothingNowhere.M2.20220215.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Creating a file
Creating a process with a hidden window
Launching a process
Moving a recently created file
Query of malicious DNS domain
Sending an HTTP GET request to an infection source 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/a8aec4315c943a59aaef38a465653c6deee872da8909265f65594cc1d16f96b9/results/dashboard
Payload URLs
URL
File name
demo.cansunoto.com
WorkBook
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware macros macros-on-open regsvr32
Link:
https://www.filescan.io/uploads/636b83845ae98d577068953b/reports/b504f29a-49d5-480c-a55b-2309112911cd/overview
Label:
Benign
Suspicious Score:
3.6/10
Score Malicious:
37%
Score Benign:
63%
Link:
https://www.malware.ai/gui/files/?id=712c995a-d822-42cf-af59-3f9500f28907
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/a8aec4315c943a59aaef38a465653c6deee872da8909265f65594cc1d16f96b9
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/a8aec4315c943a59aaef38a465653c6deee872da8909265f65594cc1d16f96b9/
Threat name:
Document-Excel.Trojan.Emotet
Create hunting rule
Status:
Malicious
First seen:
2022-11-09 10:40:08 UTC
File Type:
Document
Extracted files:
11
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcxmimk4sq5ftkxphcsgkzj4nxxoq4w2reesmx3flfgmdulps24q._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet botnet:epoch5 banker macro persistence trojan xlm
Link:
https://tria.ge/reports/221109-mqh9cahfer/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Adds Run key to start application
Loads dropped DLL
Downloads MZ/PE file
Emotet
Process spawned unexpected child process
Malware Config
C2 Extraction:
178.238.225.252:8080
139.196.72.155:8080
36.67.23.59:443
103.56.149.105:8080
37.44.244.177:8080
85.25.120.45:8080
202.134.4.210:7080
78.47.204.80:443
83.229.80.93:8080
93.104.209.107:8080
80.211.107.116:8080
165.22.254.236:8080
104.244.79.94:443
185.148.169.10:8080
190.145.8.4:443
175.126.176.79:8080
139.59.80.108:8080
188.165.79.151:443
128.199.217.206:443
64.227.55.231:8080
218.38.121.17:443
103.71.99.57:8080
103.224.241.74:8080
128.199.242.164:8080
85.214.67.203:8080
103.254.12.236:7080
46.101.98.60:8080
178.62.112.199:8080
210.57.209.142:8080
195.77.239.39:8080
103.126.216.86:443
82.98.180.154:7080
202.28.34.99:8080
174.138.33.49:7080
160.16.143.191:8080
51.75.33.122:443
103.41.204.169:8080
186.250.48.5:443
87.106.97.83:7080
118.98.72.86:443
196.44.98.190:8080
103.85.95.4:8080
62.171.178.147:8080
54.37.228.122:443
114.79.130.68:443
198.199.70.22:8080
Dropper Extraction:
http://yesdeko.com/app/mydLAE/
http://demo.cansunoto.com/lYqTuQ0qe5r2Y/JM1VqkOTTwt7Bvsu/
http://cultura.educad.pe/wp-content/Vy5ft0Rw/
http://nlasandbox3.com/backup/iCxLdPuH6tfxDQR2/
Malware family:
Emotet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a8aec4315c94/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/a8aec4315c943a59aaef38a465653c6deee872da8909265f65594cc1d16f96b9

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.

Cape
Cape
https://www.capesandbox.com/analysis/331122/

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