MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4c9ab25e494f7f6f2411e1ff709665d708cbf03566716384bd077046ff40d5e. 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: 4


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4c9ab25e494f7f6f2411e1ff709665d708cbf03566716384bd077046ff40d5e
SHA3-384 hash: f845e2372a8e7765254821c4ac7b42a597601d3ff95ce701785fd0a8d2a2eeac94ed71dbf588f3dfa16a4bb1ea216dd8
SHA1 hash: d6e96e076704b2b9d2401d6faef3381936185da3
MD5 hash: b3f12429a92a00a629b11f1a6e6c7046
humanhash: montana-lemon-hotel-cardinal
File name:Contract-2022-06-03_1618.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:72'192 bytes
First seen:2022-06-03 20:26:55 UTC
Last seen:2022-06-03 21:39:13 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+of+hDcnTLiQrRTZws8E/Q:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMm
TLSH T1D1634B59BB69884EE5198B3048F747D62333FD308B5F0A433255F3926FB95906703A5B
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter Anonymous
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
361832 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 :
2
# of downloads :
631
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Contract-2022-06-03_1618.xls
Verdict:
Malicious activity
Analysis date:
2022-06-03 20:30:00 UTC
Tags:
macros
Link:
https://app.any.run/tasks/f886318f-5635-4882-8f20-b2888a077932

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:
n/a
Link:
https://www.capesandbox.com/analysis/276582/
Detection(s):
TwinWave.EvilDoc.XL4DataopItWasGoodLivingWithYou.20211109.UNOFFICIAL
Create hunting rule

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

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.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
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/a4c9ab25e494f7f6f2411e1ff709665d708cbf03566716384bd077046ff40d5e/results/dashboard
Payload URLs
URL
File name
www.pioneerimmigration.co.in
WorkBook
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe greyware macros macros-on-open packed regsvr32
Link:
https://www.filescan.io/uploads/629a6e952dac0ae8c903b591/reports/0c3dfb4a-b238-4d64-aec9-203838955185/overview
Label:
Malicious
Suspicious Score:
5.7/10
Score Malicious:
58%
Score Benign:
42%
Link:
https://www.malware.ai/gui/files/?id=e0acd44d-daa6-47af-af8d-6c529d046196
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/a4c9ab25e494f7f6f2411e1ff709665d708cbf03566716384bd077046ff40d5e
Details
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/1006533
Signature
Antivirus detection for URL or domain
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
Multi AV Scanner detection for domain / URL
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4c9ab25e494f7f6f2411e1ff709665d708cbf03566716384bd077046ff40d5e/
Threat name:
Document-Excel.Trojan.Abracadabra
Create hunting rule
Status:
Malicious
First seen:
2022-06-03 20:27:05 UTC
File Type:
Document
Extracted files:
9
AV detection:
14 of 41 (34.15%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ute2wjpest37n4sbdyp7oclglvyizpydkztrmocl2b3qi37ubvpa._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet botnet:epoch4 banker macro trojan xlm
Link:
https://tria.ge/reports/220603-y8dmcsddf8/
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
Malware Config
C2 Extraction:
164.68.99.3:8080
146.59.226.45:443
51.91.76.89:8080
209.97.163.214:443
158.69.222.101:443
82.165.152.127:8080
103.70.28.102:8080
72.15.201.15:8080
150.95.66.124:8080
45.176.232.124:443
82.223.21.224:8080
107.170.39.149:8080
160.16.142.56:8080
103.132.242.26:8080
153.126.146.25:7080
213.241.20.155:443
1.234.21.73:7080
197.242.150.244:8080
188.44.20.25:443
196.218.30.83:443
5.9.116.246:8080
183.111.227.137:8080
173.212.193.249:8080
207.180.241.186:8080
201.94.166.162:443
212.24.98.99:8080
115.68.227.76:8080
206.189.28.199:8080
203.114.109.124:443
103.43.75.120:443
149.56.131.28:8080
110.232.117.186:8080
103.75.201.2:443
46.55.222.11:443
209.126.98.206:8080
1.234.2.232:8080
45.118.115.99:8080
163.44.196.120:8080
119.193.124.41:7080
151.106.112.196:8080
101.50.0.91:8080
51.254.140.238:7080
186.194.240.217:443
172.104.251.154:8080
91.207.28.33:8080
159.65.88.10:8080
185.4.135.165:8080
79.137.35.198:8080
159.89.202.34:443
129.232.188.93:443
131.100.24.231:80
41.73.252.195:443
134.122.66.193:8080
37.187.115.122:8080
94.23.45.86:4143
167.172.253.162:8080
159.65.140.115:443
45.235.8.30:8080
Dropper Extraction:
http://panamel.com/wp-content/FBPHSHN1AdVpn/
https://papillonweb.fr/wp-content/QTdf/
https://www.pioneerimmigration.co.in/icon/Z5z5Vx/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a4c9ab25e494/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/a4c9ab25e494f7f6f2411e1ff709665d708cbf03566716384bd077046ff40d5e

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.

Cape
Cape
https://www.capesandbox.com/analysis/276582/

Comments