MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d. 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: 11


Maldoc score: 7


Intelligence 11 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d
SHA3-384 hash: 97e8e82b1b297feb65fa476eda7e7afc50accfd6c7b0d9d10ba2bc0d23da9c637ea5476e579341039ce4a1335ee3dad9
SHA1 hash: 602852d435f55e932f147f765384510d4be9dec0
MD5 hash: 90511ce75929d342264cf901297e8a60
humanhash: apart-march-leopard-music
File name:90511ce75929d342264cf901297e8a60
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:108'544 bytes
First seen:2022-03-30 06:25:55 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 3072:6sKpbdrHYrMue8q7QPX+5xtekEdi8/dg3tgSmsCpH/KZuAZGsM+:pKpbdrHYrMue8q7QPX+5xtFEdi8/dgd/
TLSH T193B39E4BB669D459F92647794CEB475A7327FC341F9A47832354F3292FB8CA05A0320B
Reporter zbetcheckin
Tags:excel 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: 7
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
398207 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
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
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
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/259556/
Detection(s):
SecuriteInfo.com.Macro.Downlader-14.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Macro.Downloader-15.UNOFFICIAL
Create hunting rule

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

Sanesecurity.Badmacro.Xls.Araexe.UNOFFICIAL
Create hunting rule

Sanesecurity.Badmacro.Xls.Hidehtt.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.BITSADMIN.EXE.200327.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.URLDOWNLOADTOFILE.200415.UNOFFICIAL
Create hunting rule

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

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

TwinWave.EvilDoc.DOCXSTRGOODXL4.HTTP
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOODXL4.HTTPS
Create hunting rule

TwinWave.EvilDoc.EmotetNoticePicturesOfU.MSOLE2.220314.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XLSLOLBINHammerToFall.20201218.UNOFFICIAL
Create hunting rule

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

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
DNS request
Creating a file
Creating a process with a hidden window
Sending an HTTP GET request
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Link:
https://app.docguard.net/7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d/results/dashboard
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
coinminer emotet macros macros-on-open regsvr32 regsvr32.exe
Link:
https://www.filescan.io/uploads/6243f7fca19c649412aaac86/reports/6a5a6233-d010-412b-a7d5-9e1d134e648c/overview
Label:
Benign
Suspicious Score:
3.9/10
Score Malicious:
39%
Score Benign:
61%
Link:
https://www.malware.ai/gui/files/?id=21871a9e-5e25-4c9c-b9d6-2817bdb9fea6
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d
Details
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
Create hunting rule
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/967371
Behaviour
Behavior Graph:
n/a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d/
Threat name:
Document-Office.Trojan.Emotet
Create hunting rule
Status:
Malicious
First seen:
2022-03-30 06:26:07 UTC
File Type:
Document
Extracted files:
11
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=owl5562lv4vq4k5mlny7j4wm4szblojgtii3a67f3vcolj2qsvwq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro xlm
Link:
https://tria.ge/reports/220330-g663fshcf2/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://dougveeder.com/cgi-bin/xJ91ZttGRioQ7IUL/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/7597defb4baf/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/7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d

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.

Web download

SilentBuilder

Excel file xlsx 7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2118032/
  
URLhaus
https://urlhaus.abuse.ch/url/2119433/
  
URLhaus
https://urlhaus.abuse.ch/url/2120135/
  
URLhaus
https://urlhaus.abuse.ch/url/2119385/
  
URLhaus
https://urlhaus.abuse.ch/url/2117895/
Cape
Cape
https://www.capesandbox.com/analysis/259556/
  
URLhaus
https://urlhaus.abuse.ch/url/2120113/

Comments


Avatar
zbet commented on 2022-03-30 06:25:56 UTC

url : hxxp://fashionbyprincessmelodicaah.com/4185PINT/te/?i=1