Malicious PDF — malware analysis report

Static analysis result for SHA-256 949f12572604c271…

MALICIOUS

PDF

43.3 KB Created: 2020-10-26 13:05:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-10
MD5: 8a85f01d75760a0a5b467bf370a9b51a SHA-1: 4c642f15dbf3af10936442940cfc6e16abd0c69b SHA-256: 949f12572604c2717a6899e1b65b9eaf835bba3f3127f67e24f46b85cd433d54
162 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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/wb?keyword=famous%20children In PDF document text
    • https://s3.amazonaws.com/sukedil/asientos_contables_ejercicios_resueltos_colombia.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/parental_care_in_insects.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/18206855324.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370778/normal_5f8c708e3190a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380226/normal_5f8d92582d5bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383916/normal_5f8c99d017d8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389586/normal_5f8dd08438b31.pdfIn PDF document text
    • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/0e3ba8b74095b43.pdfIn PDF document text
    • https://jopalezaleloloj.weebly.com/uploads/1/3/1/3/131380469/nubirupa.pdfIn PDF document text
    • https://ponixojezunuto.weebly.com/uploads/1/3/0/9/130969897/6085727.pdfIn PDF document text
    • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/zotudo.pdfIn PDF document text
    • https://ggtraff.ru/wb?keyword=famous%20children's%20bedtime%20stories%20pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006afc.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006afc.bin)
    • https://uploads.strikinglycdn.com/files/5482ced8-b819-4911-bbef-3fb2cba6cc70/90714372840.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd550689-d02b-447e-b34e-5344c70e3c29/37510701529.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d48786d4-dccd-4c3b-bcd7-7c2699895568/fuzikazonezokuvefimesebi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dc64632-d8a2-487d-88f5-9d4a255fb9a3/risajutinajixu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e281b69-fa5b-4262-bb84-c5e2a2a1117f/zagogixusarazajojijuwukep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41497edb-908a-40f6-a45f-397b0dd2a13b/the_joiner_and_cabinet_maker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adf6a656-4a97-41b7-8eb2-024bfde251e0/80206150806.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e807a491-4918-473e-a93b-9c9fb543d67b/65903124488.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 extracted file (font_00_sfnt_off00006afc.bin)

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_off00006afc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFC 5524 bytes
SHA-256: 1f4659369626fe0845ca7c5d083d38b79df369650b692a8dcd8a4b9f3f192495
font_01_sfnt_off00007d9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D9D 10128 bytes
SHA-256: d02c649b8127619814fe04d705b5d6ae99d96a4fdbbc6fdcee4212e688801841

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