MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59127b3982f50db065a3846377d51729786c61e32eb6f8bd5b2321847f2eee83. 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: 14


Maldoc score: 2


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: 59127b3982f50db065a3846377d51729786c61e32eb6f8bd5b2321847f2eee83
SHA3-384 hash: 3e8efb591c5bc3d9737c7b49482e313b0d49e5eb18a12fdb862a2fcede19783fc4419e0e24a0cd30a4f0e570f7f094b8
SHA1 hash: c5582d2eb71748acc2e4d4b036aa63bb777d87fa
MD5 hash: d089ec8a35eaca0a6015a71f66c80cbb
humanhash: seventeen-rugby-football-triple
File name:Rechnung 2022.02.11_1233.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:221'712 bytes
First seen:2022-11-02 21:50:32 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:bKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgAyY+TAQXTHGUMEyP5p6f5jQme:GbGUMVWlbe
TLSH T15D24F15B77999E6EF529C33408E7036A7273FD008F6B074B3609B795AFB48A05E13246
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter lowmal3
Tags:Emotet 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
3210147 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 :
1
# of downloads :
241
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Rechnung 2022.02.11_1233.xls
Verdict:
Malicious activity
Analysis date:
2022-11-02 21:52:13 UTC
Tags:
macros opendir loader
Link:
https://app.any.run/tasks/081479a4-4157-4369-b3d5-38c7233f106d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/327360/
Detection(s):
SecuriteInfo.com.XLM.Trojan.Abracadabra.8.Gen.18467.30102.UNOFFICIAL
Create hunting rule

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

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

TwinWave.EvilDoc.EmotetPicturesOfU.MSOLE2.221102.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 file
Creating a process with a hidden window
Launching a process
Moving a recently created file
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/59127b3982f50db065a3846377d51729786c61e32eb6f8bd5b2321847f2eee83/results/dashboard
Payload URLs
URL
File name
audioselec.com
WorkBook
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
emotet greyware keylogger macros macros-on-open packed regsvr32 shell32.dll
Link:
https://www.filescan.io/uploads/6362e647ce1f43143c2a80c2/reports/f83b7f43-a15b-4d27-a72a-75f1a57c4d76/overview
Label:
Benign
Suspicious Score:
4.7/10
Score Malicious:
48%
Score Benign:
52%
Link:
https://www.malware.ai/gui/files/?id=7dce77af-56ac-444e-9eb5-7daf42500f3e
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/59127b3982f50db065a3846377d51729786c61e32eb6f8bd5b2321847f2eee83
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/1103763
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an autostart registry key pointing to binary in C:\Windows
Creates multiple autostart registry keys
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)
Machine Learning detection for dropped file
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Office process drops PE file
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: 736424 Sample: Rechnung 2022.02.11_1233.xls Startdate: 02/11/2022 Architecture: WINDOWS Score: 100 61 128.66.2.0 WINDTRE-ASIT Italy 2->61 63 128.66.3.0 WINDTRE-ASIT Italy 2->63 65 51 other IPs or domains 2->65 75 Multi AV Scanner detection for domain / URL 2->75 77 Antivirus detection for URL or domain 2->77 79 Antivirus / Scanner detection for submitted sample 2->79 81 11 other signatures 2->81 8 EXCEL.EXE 7 26 2->8         started        13 regsvr32.exe 2->13         started        15 regsvr32.exe 2 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 67 geringer-muehle.de 92.204.55.107, 443, 49174 GD-EMEA-DC-SXB1DE Germany 8->67 69 audioselec.com 190.113.113.30, 443, 49173 TelecableEconomicoSACR Costa Rica 8->69 71 2 other IPs or domains 8->71 47 C:\Users\user\oxnv4.ooccxx, PE32+ 8->47 dropped 49 C:\Users\user\oxnv3.ooccxx, PE32+ 8->49 dropped 51 C:\Users\user\oxnv2.ooccxx, PE32+ 8->51 dropped 59 6 other malicious files 8->59 dropped 85 Document exploit detected (creates forbidden files) 8->85 87 Document exploit detected (UrlDownloadToFile) 8->87 19 regsvr32.exe 2 8->19         started        23 regsvr32.exe 2 8->23         started        25 regsvr32.exe 2 8->25         started        27 regsvr32.exe 2 8->27         started        89 System process connects to network (likely due to code injection or exploit) 13->89 53 C:\Users\user\AppData\...\867F.tmp (copy), PE32+ 15->53 dropped 55 C:\Users\user\AppData\...\C66B.tmp (copy), PE32+ 17->55 dropped 57 C:\Users\user\AppData\...\A796.tmp (copy), PE32+ 17->57 dropped file6 signatures7 process8 file9 39 C:\Windows\System32\...\clVmi.dll (copy), PE32+ 19->39 dropped 83 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->83 29 regsvr32.exe 1 19->29         started        41 C:\Windows\System32\IzUQv\kCsQL.dll (copy), PE32+ 23->41 dropped 33 regsvr32.exe 1 23->33         started        43 C:\Windows\System32\...\ozrtICRq.dll (copy), PE32+ 25->43 dropped 35 regsvr32.exe 1 25->35         started        45 C:\Windows\...\MsYFJcRUEHZ.dll (copy), PE32+ 27->45 dropped 37 regsvr32.exe 1 27->37         started        signatures10 process11 dnsIp12 73 182.162.143.56, 443, 49177, 49178 LGDACOMLGDACOMCorporationKR Korea Republic of 29->73 91 Creates multiple autostart registry keys 29->91 93 Creates an autostart registry key pointing to binary in C:\Windows 29->93 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/59127b3982f50db065a3846377d51729786c61e32eb6f8bd5b2321847f2eee83/
Threat name:
Document-Excel.Trojan.Abracadabra
Create hunting rule
Status:
Malicious
First seen:
2022-11-02 21:51:08 UTC
File Type:
Document
Extracted files:
12
AV detection:
17 of 25 (68.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lejhwomc6ug3azndqrrxpvixff4gyypdf23prpk3emqyi7zo52bq._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet banker macro persistence trojan xlm
Link:
https://tria.ge/reports/221102-1qgmeaeehp/
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 FindShellTrayWindow
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
Dropper Extraction:
https://audioselec.com/about/dDw5ggtyMojggTqhc/
https://geringer-muehle.de/wp-admin/G/
http://intolove.co.uk/wp-admin/FbGhiWtrEzrQ/
http://isc.net.ua/themes/3rU/
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/18d49c54-77b4-4cf2-9a73-cbd993a54e81
Malware family:
Emotet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/59127b3982f5/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/59127b3982f50db065a3846377d51729786c61e32eb6f8bd5b2321847f2eee83

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

File information

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

Malspam

SilentBuilder

Excel file xls 59127b3982f50db065a3846377d51729786c61e32eb6f8bd5b2321847f2eee83

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/327360/

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