Analysis Report Refusal-743510550-01212021.xlsm

Overview

General Information

Sample Name:	Refusal-743510550-01212021.xlsm
Analysis ID:	343866
MD5:	46a087edfdd6cd9f32e71658475bbd80
SHA1:	d5e243201b2b02fd30f5eb96693c5afacd529903
SHA256:	3099fc48fbfb503b607c72c475af8df937b4036a5fdbe430ce2707e7d2388d19
Most interesting Screenshot:

Detection

Hidden Macro 4.0

Score:	60
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Document exploit detected (UrlDownloadToFile)

Found Excel 4.0 Macro with suspicious formulas

Yara detected MalDoc_1

Excel documents contains an embedded macro which executes code when the document is opened

Classification

Signatures

Compliance:

Uses new MSVCR Dlls

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll

Jump to behavior

Software Vulnerabilities:

Document exploit detected (UrlDownloadToFile)

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

Section loaded: unknown origin: URLDownloadToFileA

Jump to behavior

Networking:

Yara detected MalDoc_1

Source: Yara match

File source: sheet2.xml, type: SAMPLE

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File created: C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\770B65DC.png

Jump to behavior

System Summary:

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Source: Screenshot number: 4	Screenshot OCR: Enable Editing 11 12 from the yellow bar above 13 14 @Once You have Enable Editing, please click
Source: Screenshot number: 4	Screenshot OCR: Enable Content 15 from the yellow bar above 16 17 " WHY I CANNOTOPEN THIS DOCUMENT? 19 20 21
Source: Document image extraction number: 2	Screenshot OCR: Enable Editing from the yellow bar above Once You have Enable Editing, please click Enable Content
Source: Document image extraction number: 2	Screenshot OCR: Enable Content from the yellow bar above WHYICANNOTOPEN THIS DOCUMENT? You are using iOS or Andro
Source: Document image extraction number: 8	Screenshot OCR: Enable Editing from the yellow bar above @Once You have Enable Editing, please click Enable Conten
Source: Document image extraction number: 8	Screenshot OCR: Enable Content from the yellow bar above WHYICANNOTOPEN THIS DOCUMENT? wYou are using IDS or Andr

Found Excel 4.0 Macro with suspicious formulas

Source: Refusal-743510550-01212021.xlsm

Initial sample: EXEC

Excel documents contains an embedded macro which executes code when the document is opened

Source: workbook.xml

Binary string: <workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships"><fileVersion appName="xl" lastEdited="5" lowestEdited="4" rupBuild="9302"/><workbookPr filterPrivacy="1" defaultThemeVersion="124226"/><bookViews><workbookView xWindow="240" yWindow="105" windowWidth="14805" windowHeight="8010"/></bookViews><sheets><sheet name="DocuSign" sheetId="5" r:id="rId1"/><sheet name="Kotu" sheetId="4" state="hidden" r:id="rId2"/><sheet name="Mols" sheetId="1" state="hidden" r:id="rId3"/></sheets><definedNames><definedName name="_xlnm.Auto_Open">Kotu!$A$154</definedName></definedNames><calcPr calcId="144525"/></workbook>

Source: classification engine

Classification label: mal60.troj.expl.evad.winXLSM@1/9@0/0

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File created: C:\Users\user\Desktop\~$Refusal-743510550-01212021.xlsm

Jump to behavior

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File created: C:\Users\user\AppData\Local\Temp\CVRF90D.tmp

Jump to behavior

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File read: C:\Users\desktop.ini

Jump to behavior

Source: Window Recorder

Window detected: More than 3 window changes detected

Source: Refusal-743510550-01212021.xlsm	Initial sample: OLE zip file path = xl/worksheets/_rels/sheet2.xml.rels
Source: Refusal-743510550-01212021.xlsm	Initial sample: OLE zip file path = xl/media/image1.png
Source: Refusal-743510550-01212021.xlsm	Initial sample: OLE zip file path = xl/media/image3.png
Source: Refusal-743510550-01212021.xlsm	Initial sample: OLE zip file path = xl/media/image2.png
Source: Refusal-743510550-01212021.xlsm	Initial sample: OLE zip file path = xl/printerSettings/printerSettings2.bin
Source: Refusal-743510550-01212021.xlsm	Initial sample: OLE zip file path = xl/printerSettings/printerSettings3.bin
Source: Refusal-743510550-01212021.xlsm	Initial sample: OLE zip file path = xl/calcChain.xml

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems

Jump to behavior

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll

Jump to behavior

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Screenshots

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Network Map

No contacted IP infos

ID:	343866
Product:	CloudBasic
Start time:	18:08:42
Start date:	25.01.2021
Sample:	Refusal-743510550-01212021.xlsm
Cookbook:	defaultwindowsofficecookbook.jbs
System description:	Windows 7 x64 SP1 with Office 2010 SP2 (IE 11, FF52, Chrome 57, Adobe Reader DC 15, Flash 25.0.0.127, Java 8 Update 121, .NET 4.6.2)
Architecture:	WINDOWS
MD5:	46a087edfdd6cd9f32e71658475bbd80
SHA1:	d5e243201b2b02fd30f5eb96693c5afacd529903
SHA256:	3099fc48fbfb503b607c72c475af8df937b4036a5fdbe430ce2707e7d2388d19
Filetype:	Excel Microsoft Office Open XML Format document (40004/1) 83.33%

Name	Type	MD5	SHA1	SHA256
C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\770B65DC.png	PNG image data, 205 x 58, 8-bit/color RGB, non-interlaced	D8574C9CC4123EF67C8B600850BE52EE	5547AC473B3523BA2410E04B75E37B1944EE0CCC	ADD8156BAA01E6A9DE10132E57A2E4659B1A8027A8850B8937E57D56A4FC204B
C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\88A5D42D.png	PNG image data, 24 x 24, 8-bit/color RGB, non-interlaced	A516B6CB784827C6BDE58BC9D341C1BD	9D602E7248E06FF639E6437A0A16EA7A4F9E6C73	EF8F7EDB6BA0B5ACEC64543A0AF1B133539FFD439F8324634C3F970112997074
C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\BB5AB44A.png	PNG image data, 24 x 24, 8-bit/color RGB, non-interlaced	02DB1068B56D3FD907241C2F3240F849	58EC338C879DDBDF02265CBEFA9A2FB08C569D20	D58FF94F5BB5D49236C138DC109CE83E82879D0D44BE387B0EA3773D908DD25F
C:\Users\user\AppData\Local\Temp\100F0000	data	80EC75C41734F419B71DEBBEE604174A	AA1E0471F05678E4E289C82FB4853B22FBAC386C	50C7AD85D36389C3C3303DB911AD023D7EB9C9A23A0804279E368FD01647A2F4
C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\Desktop.LNK	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Read-Only, Directory, ctime=Tue Oct 17 10:04:00 2017, mtime=Tue Jan 26 01:09:50 2021, atime=Tue Jan 26 01:09:50 2021, length=8192, window=hide	15B88B2D8D3E4E0F7B8B29C247D2BF50	DE7BFBF2ACA77774EA01C4558C5AE00F30206DE8	AF7C40AF44A9F419FB36D5272FD448181C5B4E23E3ECBDCEBDDD9E5A30BA5C92
C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\Refusal-743510550-01212021.LNK	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Archive, ctime=Wed Aug 26 14:08:15 2020, mtime=Tue Jan 26 01:09:50 2021, atime=Tue Jan 26 01:09:51 2021, length=26117, window=hide	9D4940D7C7DECA081F0C25FBF97FEFDA	A4FFBDB634007FAF95816D652E712A38AE9C9DF0	EDB2EFE07C7F346C8CBC554E6D065604803224E15F1AD5DF993E020152EF63BC
C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\index.dat	ASCII text, with CRLF line terminators	D50377CB029C09BDDC1AE39FC6248BA7	CD4AFCAB61DE1870CF03BDD7C9B35582310D8D11	52B4262617B96BE1BC67366E3FBBB40F60C5BCA75B8CB0C3E04011F71BAE0E6C
C:\Users\user\Desktop\B00F0000	data	80EC75C41734F419B71DEBBEE604174A	AA1E0471F05678E4E289C82FB4853B22FBAC386C	50C7AD85D36389C3C3303DB911AD023D7EB9C9A23A0804279E368FD01647A2F4
C:\Users\user\Desktop\~$Refusal-743510550-01212021.xlsm	data	96114D75E30EBD26B572C1FC83D1D02E	A44EEBDA5EB09862AC46346227F06F8CFAF19407	0C6F8CF0E504C17073E4C614C8A7063F194E335D840611EEFA9E29C7CED1A523

Analysis Report Refusal-743510550-01212021.xlsm

Overview

General Information

Detection

Signatures

Classification

Signatures

Compliance:

Software Vulnerabilities:

Networking:

System Summary:

Hooking and other Techniques for Hiding and Protection:

Screenshots

Behavior Graph

Network Map