Analysis Report SecuriteInfo.com.Heur.15528.14839

Overview

General Information

Sample Name: SecuriteInfo.com.Heur.15528.14839 (renamed file extension from 14839 to xls)
Analysis ID: 356212
MD5: 5a75c6184001a6b8785206f1e2121290
SHA1: b3ec9fbcc5e96c45e74d503210a51a7ee5ce8132
SHA256: c71bd3833fbb10cd2f845c83a6ed957f3243990de48a74b4d5cf1602303f4bb1

Most interesting Screenshot:

Detection

Hidden Macro 4.0
Score: 76
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Document exploit detected (UrlDownloadToFile)
Document exploit detected (process start blacklist hit)
Found Excel 4.0 Macro with suspicious formulas
Sigma detected: Microsoft Office Product Spawning Windows Shell
Yara detected hidden Macro 4.0 in Excel
Document contains embedded VBA macros
JA3 SSL client fingerprint seen in connection with other malware
Potential document exploit detected (performs DNS queries)
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Yara signature match

Classification

AV Detection:

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Multi AV Scanner detection for submitted file
Source: SecuriteInfo.com.Heur.15528.xls Virustotal: Detection: 9% Perma Link

Compliance:

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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
Uses secure TLS version for HTTPS connections
Source: unknown HTTPS traffic detected: 139.162.8.120:443 -> 192.168.2.22:49167 version: TLS 1.2

Software Vulnerabilities:

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Document exploit detected (UrlDownloadToFile)
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Section loaded: \KnownDlls\api-ms-win-downlevel-shlwapi-l2-1-0.dll origin: URLDownloadToFileA Jump to behavior
Document exploit detected (process start blacklist hit)
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Windows\System32\rundll32.exe Jump to behavior
Potential document exploit detected (performs DNS queries)
Source: global traffic DNS query: name: pg.happyslot88.cc
Potential document exploit detected (performs HTTP gets)
Source: global traffic TCP traffic: 192.168.2.22:49167 -> 139.162.8.120:443
Potential document exploit detected (unknown TCP traffic)
Source: global traffic TCP traffic: 192.168.2.22:49167 -> 139.162.8.120:443

Networking:

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JA3 SSL client fingerprint seen in connection with other malware
Source: Joe Sandbox View JA3 fingerprint: 7dcce5b76c8b17472d024758970a406b
Source: rundll32.exe, 00000003.00000002.2097521272.0000000001BF0000.00000002.00000001.sdmp String found in binary or memory: Please visit http://www.hotmail.com/oe to learn more. equals www.hotmail.com (Hotmail)
Source: unknown DNS traffic detected: queries for: pg.happyslot88.cc
Source: E0F5C59F9FA661F6F4C50B87FEF3A15A.0.dr String found in binary or memory: http://apps.identrust.com/roots/dstrootcax3.p7c
Source: 77EC63BDA74BD0D0E0426DC8F8008506.0.dr String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
Source: rundll32.exe, 00000003.00000002.2097521272.0000000001BF0000.00000002.00000001.sdmp String found in binary or memory: http://investor.msn.com
Source: rundll32.exe, 00000003.00000002.2097521272.0000000001BF0000.00000002.00000001.sdmp String found in binary or memory: http://investor.msn.com/
Source: rundll32.exe, 00000003.00000002.2097683306.0000000001DD7000.00000002.00000001.sdmp String found in binary or memory: http://localizability/practices/XML.asp
Source: rundll32.exe, 00000003.00000002.2097683306.0000000001DD7000.00000002.00000001.sdmp String found in binary or memory: http://localizability/practices/XMLConfiguration.asp
Source: rundll32.exe, 00000003.00000002.2097683306.0000000001DD7000.00000002.00000001.sdmp String found in binary or memory: http://services.msn.com/svcs/oe/certpage.asp?name=%s&email=%s&&Check
Source: rundll32.exe, 00000003.00000002.2097683306.0000000001DD7000.00000002.00000001.sdmp String found in binary or memory: http://windowsmedia.com/redir/services.asp?WMPFriendly=true
Source: rundll32.exe, 00000003.00000002.2097521272.0000000001BF0000.00000002.00000001.sdmp String found in binary or memory: http://www.hotmail.com/oe
Source: rundll32.exe, 00000003.00000002.2097683306.0000000001DD7000.00000002.00000001.sdmp String found in binary or memory: http://www.icra.org/vocabulary/.
Source: rundll32.exe, 00000003.00000002.2097521272.0000000001BF0000.00000002.00000001.sdmp String found in binary or memory: http://www.msnbc.com/news/ticker.txt
Source: rundll32.exe, 00000003.00000002.2097521272.0000000001BF0000.00000002.00000001.sdmp String found in binary or memory: http://www.windows.com/pctv.
Source: SecuriteInfo.com.Heur.15528.xls String found in binary or memory: https://pg.happyslot88.cc/ds/2202.gif
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49167
Source: unknown Network traffic detected: HTTP traffic on port 49167 -> 443
Source: unknown HTTPS traffic detected: 139.162.8.120:443 -> 192.168.2.22:49167 version: TLS 1.2

System Summary:

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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 from the yellow bar above 12 13 @Once You have Enable Editing, please click "E
Source: Document image extraction number: 1 Screenshot OCR: Enable Editing" from the yellow bar above Once You have Enable Editing, please click "Enable Conte
Source: Document image extraction number: 1 Screenshot OCR: Enable Content" from the yellow bar above WHY I CANNOT OPEN THIS DOCUMENT? You are using iOS or A
Source: Document image extraction number: 6 Screenshot OCR: Enable Editing" from the yellow bar above @Once You have Enable Editing, please click "EnableConte
Found Excel 4.0 Macro with suspicious formulas
Source: SecuriteInfo.com.Heur.15528.xls Initial sample: EXEC
Document contains embedded VBA macros
Source: SecuriteInfo.com.Heur.15528.xls OLE indicator, VBA macros: true
Yara signature match
Source: SecuriteInfo.com.Heur.15528.xls, type: SAMPLE Matched rule: SUSP_EnableContent_String_Gen date = 2019-02-12, hash1 = 525ba2c8d35f6972ac8fcec8081ae35f6fe8119500be20a4113900fe57d6a0de, author = Florian Roth, description = Detects suspicious string that asks to enable active content in Office Doc, reference = Internal Research
Source: SecuriteInfo.com.Heur.15528.xls, type: SAMPLE Matched rule: SUSP_Excel4Macro_AutoOpen date = 2020-03-26, author = John Lambert @JohnLaTwC, description = Detects Excel4 macro use with auto open / close, score = 2fb198f6ad33d0f26fb94a1aa159fef7296e0421da68887b8f2548bbd227e58f
Source: rundll32.exe, 00000003.00000002.2097521272.0000000001BF0000.00000002.00000001.sdmp Binary or memory string: .VBPud<_
Source: classification engine Classification label: mal76.expl.evad.winXLS@3/11@1/1
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File created: C:\Users\user\Desktop\12DE0000 Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File created: C:\Users\user\AppData\Local\Temp\CVRCABD.tmp Jump to behavior
Source: SecuriteInfo.com.Heur.15528.xls OLE indicator, Workbook stream: true
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File read: C:\Users\desktop.ini Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\SystemCertificates\CA Jump to behavior
Source: unknown Process created: C:\Windows\System32\rundll32.exe rundll32 ..\rieuro.vnt,DllRegisterServer
Source: SecuriteInfo.com.Heur.15528.xls Virustotal: Detection: 9%
Source: unknown Process created: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE 'C:\Program Files\Microsoft Office\Office14\EXCEL.EXE' /automation -Embedding
Source: unknown Process created: C:\Windows\System32\rundll32.exe rundll32 ..\rieuro.vnt,DllRegisterServer
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Windows\System32\rundll32.exe rundll32 ..\rieuro.vnt,DllRegisterServer Jump to behavior
Source: Window Recorder Window detected: More than 3 window changes detected
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
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

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Yara detected hidden Macro 4.0 in Excel
Source: Yara match File source: SecuriteInfo.com.Heur.15528.xls, type: SAMPLE