Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a98ee808815b241…

MALICIOUS

PDF

41.5 KB Authoring application: Serif PagePlus First seen: 2020-09-24
MD5: 6cb571f8aa26f974ccdbe9d3e9cbd133 SHA-1: 84ffa54d33226fba947b61989a2dd0f197175c8c SHA-256: 4a98ee808815b241d4236c5c3f4ac88b0f5f7442090ef278444431a41371ed6d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm used to artificially inflate search engine rankings or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection motive. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://trueleadershipconference.com/uploads/1/3/0/2/130288320/7699851.pdf In PDF document text
    • http://charitysalon.org/uploads/1/3/0/3/130379178/lidufutasidoloru.pdfIn PDF document text
    • http://magetointerieurbouw.com/uploads/1/3/0/2/130291658/ead926a55810.pdfIn PDF document text
    • http://petalesdefleurs.com/uploads/1/3/0/2/130289649/fenewelixo-towapa-fodatexaw.pdfIn PDF document text
    • http://miami.momotombochocolatefactory.com/uploads/1/3/0/3/130379096/130379096.html#youtube+aladdin+broadway+a+whole+new+worldIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://youtube.com/DisneyOnBroadwayIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1097 8380 bytes
SHA-256: ee42f5a54aefe180c0561e66753b3037992f4a49efca57bd857e4ce22241c1e2
font_01_sfnt_off00005253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5253 16228 bytes
SHA-256: 378288d3133907284a1dd708aec606fa45674349f7e67e9eaedc79a8f6af9139
font_02_sfnt_off00006767.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6767 2604 bytes
SHA-256: 83d89f79375f7f339e88070a8779324ce221c94923bff415e388e162fbc46cfe

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