MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 19dc079522ee34597e17e76de94a3eb72ac27252e0beee03f0a81f29a1d5cc81. 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: 6


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 19dc079522ee34597e17e76de94a3eb72ac27252e0beee03f0a81f29a1d5cc81
SHA3-384 hash: 0d66181c111c0a15f8d242c8e137c6a093f0c7b40b988cf4e067119d2c88c3560cd853f7d444068fe064a04873df5780
SHA1 hash: d3fa7041786c2c4e9c566c4b1263855ed05b91bd
MD5 hash: 83587779081de3594a3918f4cc3ecda4
humanhash: winner-sixteen-lithium-grey
File name:Details-912889.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:54'784 bytes
First seen:2022-06-20 11:28:42 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:vcTKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgHpQvK7:v2Kpb8rGYrMPe3q7Q0XV5xtezEsi8/du
TLSH T1A033D88AB65AD85DFA25C73548D747AA6323FC304F6B07433265F3256FF89A05A0321B
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter FORMALITYDE
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: 6
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
344997 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
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 :
235
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/281559/
Detection(s):
SecuriteInfo.com.Macro.Downloader-17.UNOFFICIAL
Create hunting rule

Sanesecurity.Badmacro.XlsM.Urlmon1.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
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/19dc079522ee34597e17e76de94a3eb72ac27252e0beee03f0a81f29a1d5cc81/results/dashboard
Payload URLs
URL
File name
colordropsgu.com
WorkBook
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
coinminer emotet greyware macros macros-on-open packed regsvr32
Link:
https://www.filescan.io/uploads/62b05a40f4dd1ffb77a3dcc9/reports/46527bc6-073f-4441-9714-1cf10dc6ff67/overview
Label:
Benign
Suspicious Score:
3.7/10
Score Malicious:
37%
Score Benign:
63%
Link:
https://www.malware.ai/gui/files/?id=cbc9ed5c-d220-4a4d-8132-4c4de4fb77a5
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/19dc079522ee34597e17e76de94a3eb72ac27252e0beee03f0a81f29a1d5cc81
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/1016252
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: 648748 Sample: Details-912889.xls Startdate: 20/06/2022 Architecture: WINDOWS Score: 100 45 103.224.241.74 WEBWERKS-AS-INWebWerksIndiaPvtLtdIN India 2->45 47 202.29.239.162 UNINET-AS-APUNINET-TH Thailand 2->47 49 43 other IPs or domains 2->49 61 Snort IDS alert for network traffic 2->61 63 Multi AV Scanner detection for domain / URL 2->63 65 Antivirus detection for URL or domain 2->65 67 10 other signatures 2->67 8 EXCEL.EXE 53 27 2->8         started        signatures3 process4 dnsIp5 51 thuybaohuy.com 103.45.229.10, 49174, 80 QTSC-AS-VNQuangTrungSoftwareCityDevelopmentCompanyVN Viet Nam 8->51 53 colordropsgu.com 198.38.89.190, 443, 49171 SERVERCENTRALUS United States 8->53 55 2 other IPs or domains 8->55 31 C:\Users\user\cui4.ocx, PE32+ 8->31 dropped 33 C:\Users\user\cui3.ocx, PE32+ 8->33 dropped 35 C:\Users\user\cui1.ocx, PE32+ 8->35 dropped 37 4 other malicious files 8->37 dropped 71 Document exploit detected (creates forbidden files) 8->71 73 Document exploit detected (UrlDownloadToFile) 8->73 13 regsvr32.exe 2 8->13         started        17 regsvr32.exe 2 8->17         started        19 regsvr32.exe 2 8->19         started        21 regsvr32.exe 8->21         started        file6 signatures7 process8 file9 39 C:\Windows\System32\...\SHWvlor.dll (copy), PE32+ 13->39 dropped 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->75 23 regsvr32.exe 13->23         started        41 C:\Windows\System32\...41wtQCiLLZL.dll (copy), PE32+ 17->41 dropped 26 regsvr32.exe 2 17->26         started        43 C:\Windows\System32\...\PxWbSWejeT.dll (copy), PE32+ 19->43 dropped 29 regsvr32.exe 2 19->29         started        signatures10 process11 dnsIp12 69 System process connects to network (likely due to code injection or exploit) 23->69 57 77.72.149.48, 49177, 49178, 49182 TRANSIP-ASAmsterdamtheNetherlandsNL Netherlands 26->57 59 46.101.234.246, 49175, 49176, 49181 DIGITALOCEAN-ASNUS Netherlands 26->59 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/19dc079522ee34597e17e76de94a3eb72ac27252e0beee03f0a81f29a1d5cc81/
Threat name:
Document-Excel.Trojan.Emotet
Create hunting rule
Status:
Malicious
First seen:
2022-06-20 11:29:06 UTC
File Type:
Document
Extracted files:
10
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dhoapfjc5y2fs7qx45w6ssr6w4vme4ss4c7o4a7qvapstiovzsaq._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet banker macro suricata trojan xlm
Link:
https://tria.ge/reports/220620-nlj6hsfac6/
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:
62.171.178.147:8080
128.199.217.206:443
85.25.120.45:8080
157.230.99.206:8080
46.101.234.246:8080
196.44.98.190:8080
202.134.4.210:7080
54.37.106.167:8080
175.126.176.79:8080
104.244.79.94:443
103.71.99.57:8080
88.217.172.165:8080
104.248.225.227:8080
198.199.70.22:8080
64.227.55.231:8080
128.199.242.164:8080
195.77.239.39:8080
118.98.72.86:443
54.37.228.122:443
157.245.111.0:8080
85.214.67.203:8080
37.187.114.15:8080
103.41.204.169:8080
46.101.98.60:8080
210.57.209.142:8080
188.225.32.231:4143
87.106.97.83:7080
103.85.95.4:8080
103.224.241.74:8080
190.145.8.4:443
165.22.254.236:8080
139.196.72.155:8080
202.28.34.99:8080
190.107.19.179:443
78.47.204.80:443
202.29.239.162:443
178.62.112.199:8080
103.254.12.236:7080
103.56.149.105:8080
36.67.23.59:443
93.104.209.107:8080
77.72.149.48:8080
68.183.91.111:8080
103.126.216.86:443
116.124.128.206:8080
37.44.244.177:8080
165.232.185.110:8080
Dropper Extraction:
https://colordropsgu.com/7DORfidiAu/BquoSU/
https://ewingconsulting.com/buy/Ewj7oYjhYQ/
https://ceramicalafortaleza.com/css/5DSBCCH0/
http://thuybaohuy.com/wp-content/VxhkYwH7/
Malware family:
Emotet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/19dc079522ee/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/19dc079522ee34597e17e76de94a3eb72ac27252e0beee03f0a81f29a1d5cc81

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 19dc079522ee34597e17e76de94a3eb72ac27252e0beee03f0a81f29a1d5cc81

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/281559/

Comments