MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ceefb4a3501ecdd0952b7e592bea87135c701311361f8b3384c99d7bfc20ae13. 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: 9


Maldoc score: 7


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ceefb4a3501ecdd0952b7e592bea87135c701311361f8b3384c99d7bfc20ae13
SHA3-384 hash: bfe7d4fd446da5648c42bb00934f2064a28bcee53cc0f2d3bec8bee7e42211994abd4c68d4be1c70e0c6fea1858ba45d
SHA1 hash: 149ccf27091972351d8daceaaad1e0c0fa2076df
MD5 hash: 1299a3989695c1d2e95fc55cfe8c56a9
humanhash: ink-social-salami-skylark
File name:Money transfer details.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:145'920 bytes
First seen:2022-03-24 15:36:48 UTC
Last seen:2022-03-24 17:54:21 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 3072:zOKpbdrHYrMue8q7QPX+5xtekE86W8UM+5/c/mrWmngyYXnMJelsSKThsdskl4W9:CKpbdrHYrMue8q7QPX+5xtFE86W8UM++
TLSH T1E6E3CF5AB419D81CF506CB3448CB4BAB6623FC344F5A4A872368F3A57FF9C90960325B
Reporter proxylife
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
3134920 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 :
264
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/257218/
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/ceefb4a3501ecdd0952b7e592bea87135c701311361f8b3384c99d7bfc20ae13/results/dashboard
Payload URLs
URL
File name
cornerstonecreativestudios.com
WorkBook
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe greyware keylogger macros macros-on-open regsvr32
Link:
https://www.filescan.io/uploads/623c9021b94fb38cb4e3c353/reports/ae0c704b-c050-4199-9e47-ae07e8318a82/overview
Label:
Malicious
Suspicious Score:
5.8/10
Score Malicious:
58%
Score Benign:
42%
Link:
https://www.malware.ai/gui/files/?id=0f7778af-05e1-49e9-a0f9-2f0650f2d23e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ceefb4a3501ecdd0952b7e592bea87135c701311361f8b3384c99d7bfc20ae13/
Threat name:
Document-Office.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2022-03-24 15:37:09 UTC
File Type:
Document
Extracted files:
10
AV detection:
6 of 41 (14.63%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z3x3ji2qd3g5bfjlpzmsx2uhcnohaeyrgypywm4ezgoxx7bavyjq._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet botnet:epoch4 banker macro suricata trojan xlm
Link:
https://tria.ge/reports/220324-s2ggsaffdp/
Behaviour
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
Drops file in System32 directory
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:
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://cornerstonecreativestudios.com/boards/ilsFKKHH7GaR/
https://csm101.com/transam/T7wblKicmeBabj2h/
https://dacentec2.layeredserver.com/speedtest/yjnnw/
https://datie-tw.com/test/yXPr0DO/
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/ceefb4a3501ecdd0952b7e592bea87135c701311361f8b3384c99d7bfc20ae13

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/257218/

Comments