MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e17667b8c4d4bed90c02026d543308a93691b52fef1ae66633987df3d83e7424. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e17667b8c4d4bed90c02026d543308a93691b52fef1ae66633987df3d83e7424
SHA3-384 hash: b3a6843f2458bdeabbdbcf62baae42fe1e5203c13b58802178d28e90a74eb1826c2d8a76c59747ddb8547ea002972094
SHA1 hash: 25eb58a8cdaf1519cc7da253c6ae578d580804eb
MD5 hash: 624ff72a93b15a3311f5c06dd23ad1bb
humanhash: enemy-oregon-fix-moon
File name:SecuriteInfo.com.Trojan.DOC.Downloader.BBK.11083.21331
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:47'881 bytes
First seen:2022-01-29 03:43:22 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 768:0Jlk3hbdlylKsgqopeJBWhZFGkE+cMLxAAIZEtm/piJaiyH5YnJe+eO+8WoFYpLd:0rk3hbdlylKsgqopeJBWhZFGkE+cMLx6
TLSH T144233AE7B7C79C9ADB21037A49BB82156357FC659BA34A476205F31A1EB0AC04E03727
Reporter SecuriteInfoCom
Tags:SilentBuilder xlsx

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 IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
337694 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
AutoExecAuto_OpenRuns when the Excel Workbook is opened
IOCCMD.EXEExecutable file name
SuspiciousEXECMay run an executable file or a system
SuspiciousXLM macroXLM macro found. It may contain malicious code

Intelligence

File Origin
# of uploads :
1
# of downloads :
395
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Trojan.DOC.Downloader.BBK.11083.21331
Verdict:
Malicious activity
Analysis date:
2022-01-29 03:47:14 UTC
Tags:
macros macros40 loader trojan
Link:
https://app.any.run/tasks/793199c1-e971-43a5-8fc1-e92ac4ed7c99

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/225733/
Detection(s):
SecuriteInfo.com.Heur.24233.17358.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.MSHTA.210816.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.DOC.Downloader.BBK.11083.21331.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilDoc.Emotet46and2.20220124.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.CMDObfusGamesCarrotAndStick.M2.20220128.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Sending an HTTP GET request
Creating a file
Running batch commands
Moving a recently created file
Running batch commands by exploiting the app vulnerability
Sending an HTTP GET request to an infection source
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Link:
https://app.docguard.net/e17667b8c4d4bed90c02026d543308a93691b52fef1ae66633987df3d83e7424/results/dashboard
Payload URLs
URL
File name
http://91.2
GODVIN
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd cmd.exe macros macros-on-open mshta mshta.exe stripped wacatac
Link:
https://www.filescan.io/uploads/61f4b8066caa7b596414216a/reports/b48d2558-a647-4cc6-9bc2-3a5f82a831a4/overview
Label:
Benign
Suspicious Score:
4.9/10
Score Malicious:
49%
Score Benign:
51%
Link:
https://www.malware.ai/gui/files/?id=367609f7-0d51-4215-b582-198ccbefe068
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/e17667b8c4d4bed90c02026d543308a93691b52fef1ae66633987df3d83e7424
Details
Excel 4.0 Macro
Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
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/930074
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Document contains OLE streams with names of living off the land binaries
Document exploit detected (process start blacklist hit)
Found Excel 4.0 Macro with suspicious formulas
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Obfuscated command line found
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Powershell drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: MSHTA Spawning Windows Shell
Sigma detected: Suspicious MSHTA Process Patterns
Sigma detected: Suspicious PowerShell Command Line
Sigma detected: Windows Shell File Write to Suspicious Folder
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 562552 Sample: SecuriteInfo.com.Trojan.DOC... Startdate: 29/01/2022 Architecture: WINDOWS Score: 100 52 129.232.188.93 xneeloZA South Africa 2->52 54 162.214.50.39 UNIFIEDLAYER-AS-1US United States 2->54 56 42 other IPs or domains 2->56 66 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->66 68 Multi AV Scanner detection for domain / URL 2->68 70 Found malware configuration 2->70 72 16 other signatures 2->72 15 EXCEL.EXE 53 12 2->15         started        signatures3 process4 file5 50 SecuriteInfo.com.T...oader.BBK.11083.xls, Composite 15->50 dropped 64 Obfuscated command line found 15->64 19 cmd.exe 15->19         started        signatures6 process7 process8 21 mshta.exe 11 19->21         started        dnsIp9 58 91.240.118.168, 49165, 49166, 80 GLOBALLAYERNL unknown 21->58 24 powershell.exe 12 7 21->24         started        29 rundll32.exe 2 21->29         started        process10 dnsIp11 60 ayoobeducationaltrust.in 139.59.58.214, 49167, 80 DIGITALOCEAN-ASNUS Singapore 24->60 48 C:\ProgramData\QWER.dll, PE32 24->48 dropped 78 Powershell drops PE file 24->78 31 cmd.exe 24->31         started        62 160.16.102.168, 49169, 80 SAKURA-BSAKURAInternetIncJP Japan 29->62 80 System process connects to network (likely due to code injection or exploit) 29->80 file12 signatures13 process14 process15 33 rundll32.exe 31->33         started        process16 35 rundll32.exe 1 33->35         started        file17 46 C:\Windows\SysWOW64\...\uyrbcnb.sel (copy), PE32 35->46 dropped 74 Hides that the sample has been downloaded from the Internet (zone.identifier) 35->74 39 rundll32.exe 35->39         started        signatures18 process19 process20 41 rundll32.exe 1 39->41         started        signatures21 76 Hides that the sample has been downloaded from the Internet (zone.identifier) 41->76 44 rundll32.exe 41->44         started        process22
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e17667b8c4d4bed90c02026d543308a93691b52fef1ae66633987df3d83e7424/
Threat name:
Document-Excel.Trojan.Emotet
Create hunting rule
Status:
Malicious
First seen:
2022-01-28 04:22:46 UTC
File Type:
Document
Extracted files:
7
AV detection:
16 of 43 (37.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4f3gpoge2s7nsdacajwvimyive3jdnjp54nomzrttb67hwb6oqsa._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/220129-eahzmscbhp/
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 AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in System32 directory
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Emotet
Process spawned unexpected child process
suricata: ET MALWARE W32/Emotet CnC Beacon 3
Malware Config
C2 Extraction:
160.16.102.168:80
131.100.24.231:80
200.17.134.35:7080
207.38.84.195:8080
212.237.56.116:7080
58.227.42.236:80
104.251.214.46:8080
158.69.222.101:443
192.254.71.210:443
46.55.222.11:443
45.118.135.203:7080
107.182.225.142:8080
103.75.201.2:443
104.168.155.129:8080
195.154.133.20:443
159.8.59.82:8080
110.232.117.186:8080
45.142.114.231:8080
41.76.108.46:8080
203.114.109.124:443
50.116.54.215:443
209.59.138.75:7080
185.157.82.211:8080
164.68.99.3:8080
162.214.50.39:7080
138.185.72.26:8080
178.63.25.185:443
51.15.4.22:443
81.0.236.90:443
216.158.226.206:443
45.176.232.124:443
162.243.175.63:443
212.237.17.99:8080
45.118.115.99:8080
129.232.188.93:443
173.214.173.220:8080
178.79.147.66:8080
176.104.106.96:8080
51.38.71.0:443
173.212.193.249:8080
217.182.143.207:443
212.24.98.99:8080
159.89.230.105:443
79.172.212.216:8080
212.237.5.209:443
Dropper Extraction:
http://91.240.118.168/vvv/ppp/fe.html
http://91.240.118.168/vvv/ppp/fe.png
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/e17667b8c4d4bed90c02026d543308a93691b52fef1ae66633987df3d83e7424

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: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/225733/

Comments