MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 78a26f40d27e47759c1309178b4135a62bfe5c5d32abbebb568d59b676f06d06. 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: 15


Maldoc score: 4


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 78a26f40d27e47759c1309178b4135a62bfe5c5d32abbebb568d59b676f06d06
SHA3-384 hash: 14f710bfad060e48498636e05d60e714b7835cdc7462ceccfd57c368b22d13051e50d832a8af8e0152728119f1b9735a
SHA1 hash: c539677c1e63adf1be04c1ed145783fd227f7a4f
MD5 hash: bb58d7ca49b20172117bd1385749096a
humanhash: johnny-six-fix-tango
File name:2022-06-13_0811.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:61'952 bytes
First seen:2022-06-21 18:25:08 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:tpKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgUDOJiA6Cv/UGLI36yOAs5A:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgA
TLSH T1AE532956BA5AD81DF915873548D74BAAA327FC314F9B0B832269F3106FFC8A0561710F
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: 4
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
352016 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
SuspiciousURLDownloadToFileAMay download files from the Internet
SuspiciousXLM macroXLM macro found. It may contain malicious code

Intelligence

File Origin
# of uploads :
1
# of downloads :
233
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Form - 13 Jun, 2022.zip
Verdict:
Malicious activity
Analysis date:
2022-06-13 08:55:56 UTC
Tags:
loader
Link:
https://app.any.run/tasks/5b19fb09-9d2f-440b-bfa0-eeec35453be4

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:
Emotet
Create hunting rule
Link:
https://www.capesandbox.com/analysis/282081/
Detection(s):
SecuriteInfo.com.XLM.Trojan.Abracadabra.8.Gen.9067.20980.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Macro.Downloader-17.UNOFFICIAL
Create hunting rule

Sanesecurity.Badmacro.XlsM.Urlmon1.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
Creating a window
Сreating synchronization primitives
DNS request
Creating a process with a hidden window
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Link:
https://app.docguard.net/78a26f40d27e47759c1309178b4135a62bfe5c5d32abbebb568d59b676f06d06/results/dashboard
Payload URLs
URL
File name
web4nothing.com
WorkBook
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware macros macros-on-open packed regsvr32
Link:
https://www.filescan.io/uploads/62b20d40d37f66435090c8a4/reports/72ee8acd-acc6-4bef-992c-883d7e03f77b/overview
Label:
Benign
Suspicious Score:
3.7/10
Score Malicious:
37%
Score Benign:
63%
Link:
https://www.malware.ai/gui/files/?id=262cd9b3-176a-4d37-b0e1-700221797322
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/78a26f40d27e47759c1309178b4135a62bfe5c5d32abbebb568d59b676f06d06
Details
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Result
Threat name:
Hidden Macro 4.0, Emotet
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1017396
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Drops PE files to the user root directory
Found Excel 4.0 Macro with suspicious formulas
Found malicious Excel 4.0 Macro
Hides that the sample has been downloaded from the Internet (zone.identifier)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Yara detected Emotet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 649888 Sample: 2022-06-13_0811.xls Startdate: 21/06/2022 Architecture: WINDOWS Score: 100 43 129.232.188.93 xneeloZA South Africa 2->43 45 45.235.8.30 WIKINETTELECOMUNICACOESBR Brazil 2->45 47 46 other IPs or domains 2->47 69 Snort IDS alert for network traffic 2->69 71 Multi AV Scanner detection for domain / URL 2->71 73 Antivirus detection for URL or domain 2->73 75 11 other signatures 2->75 8 EXCEL.EXE 7 22 2->8         started        13 svchost.exe 2->13         started        signatures3 process4 dnsIp5 49 vietroll.vn 103.77.162.11, 443, 49172 SUPERDATA-AS-VNSUPERDATA-VN Viet Nam 8->49 51 webpartner.fr 213.186.33.82, 49174, 80 OVHFR France 8->51 53 2 other IPs or domains 8->53 31 C:\Users\user\scd3.ocx, PE32+ 8->31 dropped 33 C:\Users\user\scd2.ocx, PE32+ 8->33 dropped 35 C:\Users\user\...\xQTSexmSYDhkVd7Leu[1].dll, PE32+ 8->35 dropped 37 2 other malicious files 8->37 dropped 77 Document exploit detected (creates forbidden files) 8->77 79 Document exploit detected (UrlDownloadToFile) 8->79 15 regsvr32.exe 2 8->15         started        19 regsvr32.exe 2 8->19         started        21 regsvr32.exe 8->21         started        23 regsvr32.exe 8->23         started        file6 signatures7 process8 file9 39 C:\Windows\System32\...\SeKP.dll (copy), PE32+ 15->39 dropped 67 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->67 25 regsvr32.exe 2 15->25         started        41 C:\Windows\System32\ZSZaP\hduK.dll (copy), PE32+ 19->41 dropped 29 regsvr32.exe 2 19->29         started        signatures10 process11 dnsIp12 55 41.73.252.195, 443, 49185, 49186 UNSPECIFIEDNG Nigeria 25->55 57 1.234.2.232, 49216, 49218, 49219 SKB-ASSKBroadbandCoLtdKR Korea Republic of 25->57 63 9 other IPs or domains 25->63 81 System process connects to network (likely due to code injection or exploit) 25->81 59 45.186.16.18, 443, 49183, 49184 RADESOUSACOMERCIOESERVICOS-MEBR unknown 29->59 61 51.161.73.194, 443, 49181, 49182 OVHFR Canada 29->61 65 2 other IPs or domains 29->65 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/78a26f40d27e47759c1309178b4135a62bfe5c5d32abbebb568d59b676f06d06/
Threat name:
Document-Excel.Trojan.Abracadabra
Create hunting rule
Status:
Malicious
First seen:
2022-06-13 06:22:28 UTC
File Type:
Document
Extracted files:
9
AV detection:
20 of 40 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pcrg6qgspzdxlhatbelywqjvuyv74xc5gkv35o2wrvm3m5xqnuda._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet botnet:epoch4 banker macro suricata trojan xlm
Link:
https://tria.ge/reports/220621-w269zshfdj/
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
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:
101.50.0.91:8080
159.89.202.34:443
209.97.163.214:443
173.212.193.249:8080
159.65.88.10:8080
45.118.115.99:8080
82.165.152.127:8080
207.148.79.14:8080
41.73.252.195:443
196.218.30.83:443
103.75.201.2:443
64.227.100.222:8080
149.56.131.28:8080
103.43.75.120:443
188.44.20.25:443
185.4.135.165:8080
91.207.28.33:8080
110.232.117.186:8080
72.15.201.15:8080
45.176.232.124:443
46.55.222.11:443
163.44.196.120:8080
172.105.226.75:8080
5.9.116.246:8080
150.95.66.124:8080
94.23.45.86:4143
107.170.39.149:8080
209.126.98.206:8080
212.24.98.99:8080
167.172.253.162:8080
146.59.226.45:443
115.68.227.76:8080
164.68.99.3:8080
206.189.28.199:8080
186.194.240.217:443
158.69.222.101:443
172.104.251.154:8080
103.70.28.102:8080
45.186.16.18:443
51.254.140.238:7080
197.242.150.244:8080
51.161.73.194:443
201.94.166.162:443
160.16.142.56:8080
213.241.20.155:443
129.232.188.93:443
134.122.66.193:8080
45.235.8.30:8080
159.65.140.115:443
119.193.124.41:7080
151.106.112.196:8080
144.91.78.55:443
82.223.21.224:8080
183.111.227.137:8080
1.234.2.232:8080
153.126.146.25:7080
79.137.35.198:8080
103.132.242.26:8080
51.91.76.89:8080
37.187.115.122:8080
131.100.24.231:80
203.114.109.124:443
1.234.21.73:7080
Dropper Extraction:
http://web4nothing.com/cgi-bin/xsKuBKuQYhYz/
https://vietroll.vn/wp-content/k9tSTiW1CosKYJOjxd/
http://136.243.217.250/application/OP4L7MV21hbub4/
http://webpartner.fr/language/mTbIHL2P12uJ3MJlL/
Malware family:
Emotet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/78a26f40d27e/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/78a26f40d27e47759c1309178b4135a62bfe5c5d32abbebb568d59b676f06d06

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

File information

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

Malspam

SilentBuilder

Excel file xls 78a26f40d27e47759c1309178b4135a62bfe5c5d32abbebb568d59b676f06d06

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/282081/

Comments