MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6222d53b7144ccc05d5dda8447155dd26a751c703204864e9a1ca06e36c378dd. 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: 12


Maldoc score: 7


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6222d53b7144ccc05d5dda8447155dd26a751c703204864e9a1ca06e36c378dd
SHA3-384 hash: f3b63f8dfb7685f37bcb7b3814498a95dcbce3080199f7058076c44732275259a84249ec595e64275e43cc01b87f6f3c
SHA1 hash: 0f8f6d93a7bcbb86e80dc593f047782f5ece3d4d
MD5 hash: fa325e5a531c391bba567e004bb1000b
humanhash: nebraska-march-mississippi-blue
File name:Rech 2022.24.03_0950.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:145'920 bytes
First seen:2022-03-24 09:17:27 UTC
Last seen:2022-03-24 10:55:03 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 3072:3aKpbdrHYrMue8q7QPX+5xtekE86W8UM+g/c/mrWmngyYXnMJelsSKThsdskl4Wh:qKpbdrHYrMue8q7QPX+5xtFE86W8UM+1
TLSH T167E3CF5AB459C81CF516CB3448CB8BAB6623FC344F5A4B872368F3A57FF9890960315B
Reporter pr0xylife
Tags:Emotet epoch4 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: 7
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
3135048 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
AutoExecAuto_OpenRuns when the Excel Workbook is opened
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
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 :
2
# of downloads :
290
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/257104/
Detection(s):
TwinWave.EvilDoc.XL4DataopItWasGoodLivingWithYou.20211109.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.BITSADMIN.EXE.200327.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.URLDOWNLOADTOFILE.200415.UNOFFICIAL
Create hunting rule

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

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

TwinWave.EvilDoc.EmotetWarningBarPicturesOfU.MSOLE2.220323.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
Sending an HTTP GET request
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Link:
https://app.docguard.net/6222d53b7144ccc05d5dda8447155dd26a751c703204864e9a1ca06e36c378dd/results/dashboard
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
macros macros-on-open regsvr32
Link:
https://www.filescan.io/uploads/623c378c0cd58dbd92e5999a/reports/c0575dbc-bef8-4d20-b4d6-3a2c0621ec4f/overview
Label:
Benign
Suspicious Score:
4.5/10
Score Malicious:
46%
Score Benign:
54%
Link:
https://www.malware.ai/gui/files/?id=64a2573c-a7ba-4154-bccd-c6db4f8d2bae
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/6222d53b7144ccc05d5dda8447155dd26a751c703204864e9a1ca06e36c378dd
Details
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
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/963615
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
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Multi AV Scanner detection for submitted file
Office process drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Regsvr32 Command Line Without DLL
Sigma detected: Regsvr32 Network Activity
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 596097 Sample: Rech 2022.24.03_0950.xls Startdate: 24/03/2022 Architecture: WINDOWS Score: 100 51 129.232.188.93 xneeloZA South Africa 2->51 53 185.8.212.130 UZINFOCOMUZ Uzbekistan 2->53 55 60 other IPs or domains 2->55 65 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->65 67 Found malware configuration 2->67 69 Antivirus detection for URL or domain 2->69 71 12 other signatures 2->71 13 EXCEL.EXE 11 18 2->13         started        18 svchost.exe 2->18         started        signatures3 process4 dnsIp5 59 debroadlink.com 72.52.251.1, 443, 49168 LIQUIDWEBUS United States 13->59 61 deardarcy.com 50.112.77.246, 443, 49167 AMAZON-02US United States 13->61 45 C:\Users\user\wesc.dll, PE32 13->45 dropped 47 C:\Users\user\...\lz1gzOZLAbn7WqBr1[1].dll, PE32 13->47 dropped 49 C:\Users\user\...\Rech 2022.24.03_0950.xls, Composite 13->49 dropped 85 Document exploit detected (creates forbidden files) 13->85 87 Document exploit detected (UrlDownloadToFile) 13->87 20 regsvr32.exe 2 13->20         started        file6 signatures7 process8 file9 43 C:\Windows\...\poccuhvqizkqa.tfw (copy), PE32 20->43 dropped 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->75 24 regsvr32.exe 1 20->24         started        signatures10 process11 signatures12 77 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->77 27 regsvr32.exe 1 24->27         started        process13 signatures14 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 27->81 30 regsvr32.exe 1 27->30         started        process15 signatures16 83 Hides that the sample has been downloaded from the Internet (zone.identifier) 30->83 33 regsvr32.exe 1 30->33         started        process17 signatures18 63 Hides that the sample has been downloaded from the Internet (zone.identifier) 33->63 36 regsvr32.exe 1 33->36         started        process19 signatures20 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 36->73 39 regsvr32.exe 2 36->39         started        process21 dnsIp22 57 51.91.76.89, 49169, 8080 OVHFR France 39->57 79 System process connects to network (likely due to code injection or exploit) 39->79 signatures23
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6222d53b7144ccc05d5dda8447155dd26a751c703204864e9a1ca06e36c378dd/
Threat name:
Document-Excel.Trojan.Emotet
Create hunting rule
Status:
Malicious
First seen:
2022-03-24 09:18:13 UTC
File Type:
Document
Extracted files:
10
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mirnko3ritgmaxk53kceofk52jvhkhdqgicimtu2dsqg4nwdpdoq._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/220324-k9mprsehf6/
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 SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Loads dropped DLL
Downloads MZ/PE file
Emotet
Process spawned unexpected child process
Malware Config
C2 Extraction:
51.91.76.89:8080
173.254.208.91:8080
149.56.128.192:443
120.50.40.183:80
160.16.218.63:8080
206.188.212.92:8080
46.55.222.11:443
79.172.212.216:8080
103.221.221.247:8080
58.227.42.236:80
192.99.251.50:443
185.157.82.211:8080
159.8.59.82:8080
51.91.7.5:8080
131.100.24.231:80
159.65.88.10:8080
195.201.151.129:8080
45.176.232.124:443
31.24.158.56:8080
50.30.40.196:8080
176.104.106.96:8080
153.126.146.25:7080
176.56.128.118:443
103.43.46.182:443
50.116.54.215:443
217.182.25.250:8080
110.232.117.186:8080
189.126.111.200:7080
45.142.114.231:8080
158.69.222.101:443
188.44.20.25:443
212.237.17.99:8080
151.106.112.196:8080
216.158.226.206:443
129.232.188.93:443
167.99.115.35:8080
1.234.21.73:7080
178.79.147.66:8080
209.126.98.206:8080
173.212.193.249:8080
72.15.201.15:8080
209.250.246.206:443
103.75.201.4:443
207.38.84.195:8080
138.185.72.26:8080
119.193.124.41:7080
5.9.116.246:8080
146.59.226.45:443
212.24.98.99:8080
45.118.115.99:8080
51.254.140.238:7080
103.75.201.2:443
203.114.109.124:443
101.50.0.91:8080
1.234.2.232:8080
195.154.133.20:443
107.182.225.142:8080
196.218.30.83:443
197.242.150.244:8080
82.165.152.127:8080
164.68.99.3:8080
185.8.212.130:7080
45.118.135.203:7080
Dropper Extraction:
https://deardarcy.com/css/NHGyTTCK/
https://debroadlink.com/brochure/D/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.50
Link:
https://yomi.yoroi.company/submissions/6222d53b7144ccc05d5dda8447155dd26a751c703204864e9a1ca06e36c378dd

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: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/257104/

Comments