Malicious PDF — malware analysis report

Static analysis result for SHA-256 799fcd45c71af93a…

MALICIOUS

PDF

41.5 KB Authoring application: LibreOffice Draw First seen: 2020-09-07
MD5: c151499f21cd1edd7b0611f3cb80ae57 SHA-1: ec985bbb3f6c9faa4cc1d725722c9b1062a3094d SHA-256: 799fcd45c71af93abefc1de6c4b3a22d080de7668118e954e57bf030a9b556c8
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique commonly used for link farms or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://sainttheresacatholicchurch.com/uploads/1/3/0/6/130605432/tujedomaweguraxope.pdf In PDF document text
    • http://bakersfieldbreakoutzone.com/uploads/1/3/0/4/130483753/wusete-gigat.pdfIn PDF document text
    • http://anchorfertilitycare.com/uploads/1/3/0/5/130589252/9389092.pdfIn PDF document text
    • http://bandgphotography.net/uploads/1/3/0/6/130620975/c5d35098.pdfIn PDF document text
    • http://ciaranhorton.weebly.com/uploads/1/3/0/5/130543656/duverekoz.pdfIn PDF document text
    • http://myriadpharmacy.com/uploads/1/3/0/6/130604303/8193056.pdfIn PDF document text
    • http://partisanrecords.net/uploads/1/3/0/7/130739889/vozijunado-razetefedolas-doduxep.pdfIn PDF document text
    • http://bloodsugarbikemagic.com/uploads/1/3/0/6/130604181/benizawo.pdfIn PDF document text
    • http://palladianpartner.com/uploads/1/3/0/5/130539218/razakajopi.pdfIn PDF document text
    • http://bienchulas.com/uploads/1/3/0/5/130541186/xewuxibadaj_xevulexe.pdfIn PDF document text
    • http://2020blue.org/uploads/1/3/0/7/130740141/130740141.html#comparative+and+superlative+adjectives+perfect+english+grammarIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
🗂 Part of campaign: bienchulas.com 4 samples

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B2 8012 bytes
SHA-256: 4ff1406e2ad5c7094875d453f364cfb0acacb0f2799eb2211efd54827b71c334
font_01_sfnt_off000066e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E0 2652 bytes
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea

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