Analysis Report Refusal-828813764-01212021.xlsm

Overview

General Information

Sample Name:	Refusal-828813764-01212021.xlsm
Analysis ID:	342770
MD5:	92e1d9e27579e5599cc57f8fe818e3be
SHA1:	b44cbc86788c575e69c6d286efd0e4e759560a5d
SHA256:	ca225c4772c5e5a9f85a0f24e178c245f2fc4fcca69c7f3855d00f508e7c4292
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\2E43122E.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 1 11 12 1 from the yellow bar above 13 14 1 @Once You have Enable Editing, please
Source: Screenshot number: 4	Screenshot OCR: Enable Content 15 1 from the yellow bar above 16 CI 17 I " I WHY I CANNOTOPEN THIS DOCUMENT? 19
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-828813764-01212021.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-828813764-01212021.xlsm

Jump to behavior

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

File created: C:\Users\user\AppData\Local\Temp\CVRCE94.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-828813764-01212021.xlsm	Initial sample: OLE zip file path = xl/worksheets/_rels/sheet2.xml.rels
Source: Refusal-828813764-01212021.xlsm	Initial sample: OLE zip file path = xl/media/image1.png
Source: Refusal-828813764-01212021.xlsm	Initial sample: OLE zip file path = xl/media/image3.png
Source: Refusal-828813764-01212021.xlsm	Initial sample: OLE zip file path = xl/media/image2.png
Source: Refusal-828813764-01212021.xlsm	Initial sample: OLE zip file path = xl/printerSettings/printerSettings2.bin
Source: Refusal-828813764-01212021.xlsm	Initial sample: OLE zip file path = xl/printerSettings/printerSettings3.bin
Source: Refusal-828813764-01212021.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:	342770
Product:	CloudBasic
Start time:	18:08:37
Start date:	21.01.2021
Sample:	Refusal-828813764-01212021.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:	92e1d9e27579e5599cc57f8fe818e3be
SHA1:	b44cbc86788c575e69c6d286efd0e4e759560a5d
SHA256:	ca225c4772c5e5a9f85a0f24e178c245f2fc4fcca69c7f3855d00f508e7c4292
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\2E43122E.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\C0F8EE6C.png	PNG image data, 24 x 24, 8-bit/color RGB, non-interlaced	02DB1068B56D3FD907241C2F3240F849	58EC338C879DDBDF02265CBEFA9A2FB08C569D20	D58FF94F5BB5D49236C138DC109CE83E82879D0D44BE387B0EA3773D908DD25F
C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\D9244057.png	PNG image data, 24 x 24, 8-bit/color RGB, non-interlaced	A516B6CB784827C6BDE58BC9D341C1BD	9D602E7248E06FF639E6437A0A16EA7A4F9E6C73	EF8F7EDB6BA0B5ACEC64543A0AF1B133539FFD439F8324634C3F970112997074
C:\Users\user\AppData\Local\Temp\E4DE0000	data	1D03E25251E69644867CE5D8BCD9463F	9B4201D89D391ADEFCF88EFEEB3ACEC179A0DC75	98DED3AB184F01B76EF36331E2F58CDE53E97E6456A747E5B82D511850733F04
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=Fri Jan 22 01:09:39 2021, atime=Fri Jan 22 01:09:39 2021, length=12288, window=hide	5EE61FAEF6A822A839A9D12D21EEC466	2DE86307B3966B1A4264163B0CC9062ADBD08BC4	C19B7B7C3384A01F9E7088CB0515B4DF9D0D5AF470C6968C2E8D5A5EDC62A4E9
C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\Refusal-828813764-01212021.LNK	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Archive, ctime=Wed Aug 26 14:08:12 2020, mtime=Fri Jan 22 01:09:39 2021, atime=Fri Jan 22 01:09:39 2021, length=26117, window=hide	105F6E5D77766467986106581459B007	8655B68C1BDE4F1970AE9AA624BB16979A2CA575	7558D1D6F0F0869183109C121F9838A81DDB4385BAF7E7ECF61A3F5D98A7C9AB
C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\index.dat	ASCII text, with CRLF line terminators	D789D6A969B49616BE15E137A75F7ECB	C035DAF15721D690B2A82E719713F1F0769D8930	62E6345416E9D4A70F3F4307E74A53415373AB97086A9BD871CC236636DBD540
C:\Users\user\Desktop\75DE0000	data	1D03E25251E69644867CE5D8BCD9463F	9B4201D89D391ADEFCF88EFEEB3ACEC179A0DC75	98DED3AB184F01B76EF36331E2F58CDE53E97E6456A747E5B82D511850733F04
C:\Users\user\Desktop\~$Refusal-828813764-01212021.xlsm	data	96114D75E30EBD26B572C1FC83D1D02E	A44EEBDA5EB09862AC46346227F06F8CFAF19407	0C6F8CF0E504C17073E4C614C8A7063F194E335D840611EEFA9E29C7CED1A523

Analysis Report Refusal-828813764-01212021.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