MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3d03b6bcf37ea2c90b47f3860fa5e5d2f1d2f714902c7badc4b1cff91ba440eb. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3d03b6bcf37ea2c90b47f3860fa5e5d2f1d2f714902c7badc4b1cff91ba440eb
SHA3-384 hash: 3e8a35d9f005d79448f0c41addd5b965dc75af6dfda245c41b137d9c91583cff5557cfd7e669419c30166055e0da6944
SHA1 hash: acfef800ddf33176309caa98145b0634ff8b95ae
MD5 hash: 69f882520fc45bbc0013c494a02209ac
humanhash: spring-one-oxygen-grey
File name:Qq_20220614_667676_001.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:61'952 bytes
First seen:2022-06-14 10:46:31 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:KpKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgbDOJiA6Cv/UGLI36yOAopxc:OKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgj
TLSH T1E6532956BA5AD81DF916873548DB4BAAA323FC314F9B0B832265F3106FFC8A0561714F
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter madjack_red
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
352058 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 :
269
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Qq_20220614_667676_001.xls
Verdict:
Malicious activity
Analysis date:
2022-06-14 10:51:49 UTC
Tags:
macros loader
Link:
https://app.any.run/tasks/17ea2c40-4aba-4b09-88c5-f30da1c9a0dc

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/279749/
Detection(s):
SecuriteInfo.com.Macro.Downloader-17.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.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
Creating a process with a hidden window
DNS request
Creating a file
Launching a process
Moving a recently created file
Sending an HTTP GET request
Launching a process by exploiting the app vulnerability
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Link:
https://app.docguard.net/3d03b6bcf37ea2c90b47f3860fa5e5d2f1d2f714902c7badc4b1cff91ba440eb/results/dashboard
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware macros macros-on-open packed regsvr32
Link:
https://www.filescan.io/uploads/62a8672ba454cbb2f2fc18bb/reports/d605a9c8-f547-4970-87dc-5389aeff45b0/overview
Label:
Benign
Suspicious Score:
3.4/10
Score Malicious:
35%
Score Benign:
65%
Link:
https://www.malware.ai/gui/files/?id=d009caca-fbeb-4dba-ac11-ec24c8fa2a7f
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/3d03b6bcf37ea2c90b47f3860fa5e5d2f1d2f714902c7badc4b1cff91ba440eb
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/1012794
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
Outdated Microsoft Office dropper detected
System process connects to network (likely due to code injection or exploit)
Yara detected Emotet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 645297 Sample: Qq_20220614_667676_001.xls Startdate: 14/06/2022 Architecture: WINDOWS Score: 100 44 Multi AV Scanner detection for domain / URL 2->44 46 Antivirus detection for URL or domain 2->46 48 Multi AV Scanner detection for dropped file 2->48 50 9 other signatures 2->50 7 EXCEL.EXE 7 31 2->7         started        12 svchost.exe 2->12         started        process3 dnsIp4 36 agitasi.id 203.175.8.72, 443, 49171 IPVG-AS-APIP-ConvergeDataCenterIncPH Indonesia 7->36 38 computercollegiate.com.pk 7->38 40 3 other IPs or domains 7->40 28 C:\Users\user\hhwe3.ocx, PE32+ 7->28 dropped 30 C:\Users\user\AppData\...\R7sUUeET[1].dll, PE32+ 7->30 dropped 32 C:\Users\user\...\Qq_20220614_667676_001.xls, Composite 7->32 dropped 52 Document exploit detected (creates forbidden files) 7->52 54 Document exploit detected (UrlDownloadToFile) 7->54 14 regsvr32.exe 2 7->14         started        18 regsvr32.exe 7->18         started        20 regsvr32.exe 7->20         started        22 regsvr32.exe 7->22         started        file5 56 Outdated Microsoft Office dropper detected 38->56 signatures6 process7 file8 34 C:\Windows\...\HFoKcoZsMnp.dll (copy), PE32+ 14->34 dropped 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->60 24 regsvr32.exe 14->24         started        signatures9 process10 dnsIp11 42 144.91.78.55, 443, 49175 CONTABODE Germany 24->42 58 System process connects to network (likely due to code injection or exploit) 24->58 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3d03b6bcf37ea2c90b47f3860fa5e5d2f1d2f714902c7badc4b1cff91ba440eb/
Threat name:
Document-Office.Trojan.Silentbuilder
Create hunting rule
Status:
Malicious
First seen:
2022-06-14 10:47:06 UTC
File Type:
Document
Extracted files:
9
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hub3nphtp2rmsc2h6oda7jpf2ly5f5yusawhxloewhh7sg5eidvq._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet banker macro suricata trojan xlm
Link:
https://tria.ge/reports/220614-mvh45shee2/
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:
101.50.0.91:8080
159.89.202.34:443
209.97.163.214:443
173.212.193.249:8080
159.65.88.10:8080
45.118.115.99:8080
82.165.152.127:8080
207.148.79.14:8080
41.73.252.195:443
196.218.30.83:443
103.75.201.2:443
64.227.100.222:8080
149.56.131.28:8080
103.43.75.120:443
188.44.20.25:443
185.4.135.165:8080
91.207.28.33:8080
110.232.117.186:8080
72.15.201.15:8080
45.176.232.124:443
46.55.222.11:443
163.44.196.120:8080
172.105.226.75:8080
5.9.116.246:8080
150.95.66.124:8080
94.23.45.86:4143
107.170.39.149:8080
209.126.98.206:8080
212.24.98.99:8080
167.172.253.162:8080
146.59.226.45:443
115.68.227.76:8080
164.68.99.3:8080
206.189.28.199:8080
186.194.240.217:443
158.69.222.101:443
172.104.251.154:8080
103.70.28.102:8080
45.186.16.18:443
51.254.140.238:7080
197.242.150.244:8080
51.161.73.194:443
201.94.166.162:443
160.16.142.56:8080
213.241.20.155:443
129.232.188.93:443
134.122.66.193:8080
45.235.8.30:8080
159.65.140.115:443
119.193.124.41:7080
151.106.112.196:8080
144.91.78.55:443
82.223.21.224:8080
183.111.227.137:8080
1.234.2.232:8080
153.126.146.25:7080
79.137.35.198:8080
103.132.242.26:8080
51.91.76.89:8080
37.187.115.122:8080
131.100.24.231:80
203.114.109.124:443
1.234.21.73:7080
Dropper Extraction:
http1
https://agitasi.id/m/qLCZWt/
http://djhost.nl/8HOicoBufQNbjbM/
https://computercollegiate.com.pk/wp-admin/q69DZX4kKZ6ssRQ/
Malware family:
Emotet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3d03b6bcf37e/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/3d03b6bcf37ea2c90b47f3860fa5e5d2f1d2f714902c7badc4b1cff91ba440eb

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

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/279749/

Comments