Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa87f18a2336caaa…

MALICIOUS

PDF

47.1 KB Created: 2020-10-01 16:41:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: f54e3d07e40c071025fb2dad107293a3 SHA-1: 5f02c4de9aa5d471de5e9863d4fe0ce08b0dd661 SHA-256: aa87f18a2336caaa5c1cbe3b0f725407256aefe47a4f1acd3f5dbe8373e83b57
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ggtraff.ru/strik?keyword=grand+babylon+hotel+pdf In PDF document text
    • https://site-1036635.mozfiles.com/files/1036635/wunitorumijosuledopoxa.pdfIn PDF document text
    • https://site-1038339.mozfiles.com/files/1038339/woretemonore.pdfIn PDF document text
    • https://site-1039811.mozfiles.com/files/1039811/pofid.pdfIn PDF document text
    • https://site-1037205.mozfiles.com/files/1037205/85400792774.pdfIn PDF document text
    • https://site-1036939.mozfiles.com/files/1036939/sadozetapi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4276/7001/files/zoo_scavenger_hunt_for_adults.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7001/6673/files/simpson_strong_bolt_2_home_depot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4191/4018/files/beer_bottle_caps_recyclable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/48675041991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1463/files/psychology_midterm_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4b0bf87-5460-4bb3-939a-41169a7e3a70/68427127799.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08a1ee06-e528-46ae-85d0-8df4cdeca551/nesowogisifexinibune.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ea52e39-1421-453c-ba8b-01ea0516d077/kegafepozolurazixalurozix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e193613-6266-4a1f-a27b-68cd770b554d/99204298474.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E23 4964 bytes
SHA-256: 25f7e0664b9ca3520738ee8cd27feca1120d4609556751794f33ebc8288f9e4e
font_01_sfnt_off00007efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EFE 10120 bytes
SHA-256: 0b9e997d9de6c3c07ddf6d67f92f5682721dd64aca0ad369de314108f0b7981c
font_02_sfnt_off0000a1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1AC 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34