Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d85e68c9aa18d3e…

MALICIOUS

PDF

72.7 KB Created: 2020-11-19 17:46:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: f91287ebd4fc11083eff19eb2fd860fc SHA-1: 0d1cb19542f2ab0c109294e443fbd77580164f49 SHA-256: 5d85e68c9aa18d3ee626c0c04bdd5227f8a1566156192292ff280f6dc936bcf7
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://traffine.ru/strik?utm_term=pelicula+de+baile+urbano In PDF document text
    • https://cdn-cms.f-static.net/uploads/4417817/normal_5fb44f4027331.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367271/normal_5fa1a10325b42.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/139d4fea2e67964.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376362/normal_5f92c6a6b5eef.pdfIn PDF document text
    • https://pumizisumene.weebly.com/uploads/1/3/4/0/134017803/kijidobafewowojig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427498/normal_5f97ffc7c7e8a.pdfIn PDF document text
    • https://rudazolabogufaj.weebly.com/uploads/1/3/4/7/134772206/95d1bd827bf.pdfIn PDF document text
    • https://metumarexidema.weebly.com/uploads/1/3/4/5/134591821/kaxuguniwotuda_sagunibe_mizaletiroz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/8458161292.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/3d_scanner_pro_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa8956b9-9c85-4eb4-a487-fdcaefa4bcd0/4000_x_121_x_14_mm.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/bootstrap_music_website_template_free.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE6 4896 bytes
SHA-256: 9bbd68318b1c8a44f23749c79950deb88a711e7cdf2b29ad127c319c49000d09
font_01_sfnt_off0000db92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB92 10836 bytes
SHA-256: 9764fd60240f376a9357b0cf2f7985abcacd3fb4d5c28a14edca2c9738719cc3
font_02_sfnt_off0000ff24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF24 16312 bytes
SHA-256: aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0

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