MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7cd973b129a836cfc82dc37ad473b1126daac2dfab010a7dd5d816b09caca34e. 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: 4


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7cd973b129a836cfc82dc37ad473b1126daac2dfab010a7dd5d816b09caca34e
SHA3-384 hash: be023935e23d87d11e00e72410da07c3b1fd2ceb38d1a909148839a42d3832d4c600e955a2a5b2894cc1ca38d9d4077f
SHA1 hash: 15e0916052275662b4358f3353aeab705f607c4b
MD5 hash: 091d53cdd1250f53d6322ae79f09891b
humanhash: carbon-hamper-april-lamp
File name:report-2781679.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:47'616 bytes
First seen:2022-06-08 17:14:16 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 768:hDMPKpb8rGYrMPe3q7Q0XV5xtezE8vpI8UM+Vyis73q/44fq/uV9:hYKpb8rGYrMPe3q7Q0XV5xtezE8vG8UN
TLSH T11923B546BB5AC85DF915873448E747EA7323EC314F6B07833669B3256FF88A05A0325B
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter pr0xylife
Tags:epoch5 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
337656 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 :
352
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
report-2781679.xls
Verdict:
Malicious activity
Analysis date:
2022-06-08 17:16:53 UTC
Tags:
macros loader
Link:
https://app.any.run/tasks/a7d97b07-087c-4ba7-ab7a-2277323f73c3

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/277865/
Detection(s):
SecuriteInfo.com.XLM.Trojan.Abracadabra.8.Gen.30047.7099.UNOFFICIAL
Create hunting rule

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 file
Creating a process with a hidden window
Launching a process
Moving a recently created file
Query of malicious DNS domain
Sending an HTTP GET request
Sending a TCP request to an infection source 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/7cd973b129a836cfc82dc37ad473b1126daac2dfab010a7dd5d816b09caca34e/results/dashboard
Payload URLs
URL
File name
www.zardamarine.com
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/62a0d91e6aa17a21fc2cdcdd/reports/ae3d43e7-bb07-47fe-8b09-fe41f49f65d1/overview
Label:
Malicious
Suspicious Score:
6.2/10
Score Malicious:
62%
Score Benign:
38%
Link:
https://www.malware.ai/gui/files/?id=7c71be11-a107-4cd7-b967-404fd8d8befb
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/7cd973b129a836cfc82dc37ad473b1126daac2dfab010a7dd5d816b09caca34e
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/1009259
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 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: 641754 Sample: report-2781679.xls Startdate: 08/06/2022 Architecture: WINDOWS Score: 100 39 103.224.241.74 WEBWERKS-AS-INWebWerksIndiaPvtLtdIN India 2->39 41 202.29.239.162 UNINET-AS-APUNINET-TH Thailand 2->41 43 36 other IPs or domains 2->43 57 Snort IDS alert for network traffic 2->57 59 Multi AV Scanner detection for domain / URL 2->59 61 Antivirus detection for URL or domain 2->61 63 10 other signatures 2->63 8 EXCEL.EXE 53 27 2->8         started        signatures3 process4 dnsIp5 51 zardamarine.com 208.67.23.91, 443, 49173 GTT-BACKBONEGTTDE United States 8->51 53 www.zardamarine.com 8->53 55 2 other IPs or domains 8->55 27 C:\Users\user\wdusx2.ocx, PE32+ 8->27 dropped 29 C:\Users\user\wdusx1.ocx, PE32+ 8->29 dropped 31 C:\Users\user\AppData\...\hv5sCd8e[1].dll, PE32+ 8->31 dropped 33 2 other malicious files 8->33 dropped 67 Document exploit detected (creates forbidden files) 8->67 69 Document exploit detected (UrlDownloadToFile) 8->69 13 regsvr32.exe 2 8->13         started        17 regsvr32.exe 2 8->17         started        19 regsvr32.exe 8->19         started        file6 signatures7 process8 file9 35 C:\Windows\System32\...\VsDvdeagea.dll (copy), PE32+ 13->35 dropped 71 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->71 21 regsvr32.exe 2 13->21         started        37 C:\Windows\System32\...\JWLOkY.dll (copy), PE32+ 17->37 dropped 25 regsvr32.exe 9 17->25         started        signatures10 process11 dnsIp12 45 212.83.184.188, 49176, 49178, 8080 OnlineSASFR France 21->45 65 System process connects to network (likely due to code injection or exploit) 21->65 47 104.244.79.94, 443, 49185, 49186 PONYNETUS United States 25->47 49 173.249.25.219, 443, 49179, 49180 CONTABODE Germany 25->49 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7cd973b129a836cfc82dc37ad473b1126daac2dfab010a7dd5d816b09caca34e/
Threat name:
Document-Excel.Trojan.Abracadabra
Create hunting rule
Status:
Malicious
First seen:
2022-06-08 17:15:06 UTC
File Type:
Document
Extracted files:
9
AV detection:
18 of 41 (43.90%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ptmxhmjjva3m7sbnyn5ni45rcjw2vqw7vmaqu7ov3allbhfmunha._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet botnet:epoch5 banker macro suricata trojan xlm
Link:
https://tria.ge/reports/220608-vsjlwschb7/
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:
78.47.204.80:443
212.83.184.188:8080
36.67.23.59:443
128.199.217.206:443
103.56.149.105:8080
202.29.239.162:443
68.183.91.111:8080
104.244.79.94:443
64.227.55.231:8080
157.230.99.206:8080
165.232.185.110:8080
103.71.99.57:8080
103.126.216.86:443
88.217.172.165:8080
103.41.204.169:8080
87.106.97.83:7080
85.25.120.45:8080
188.225.32.231:4143
118.98.72.86:443
178.62.112.199:8080
210.57.209.142:8080
62.171.178.147:8080
37.44.244.177:8080
54.37.228.122:443
202.28.34.99:8080
103.254.12.236:7080
196.44.98.190:8080
59.148.253.194:443
85.214.67.203:8080
195.77.239.39:8080
173.249.25.219:443
103.85.95.4:8080
175.126.176.79:8080
157.245.111.0:8080
93.104.209.107:8080
139.196.72.155:8080
54.37.106.167:8080
165.22.254.236:8080
116.124.128.206:8080
103.224.241.74:8080
202.134.4.210:7080
104.248.225.227:8080
Dropper Extraction:
https://www.zardamarine.com/images/psQbAjrrEOXWPrS/
http://kronostr.com/tr/68yHRhfuU7Qj/
http://labfitouts.com/cgi-bin/Rea3Iu3wGvgAbTset0/
Malware family:
Emotet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7cd973b129a8/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/7cd973b129a836cfc82dc37ad473b1126daac2dfab010a7dd5d816b09caca34e

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/277865/

Comments