Malicious PDF — malware analysis report

Static analysis result for SHA-256 04b7a00088cb464e…

MALICIOUS

PDF

45.7 KB Created: 2020-08-12 19:47:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1055e31e3662a4d7b4e20b83f30cae17 SHA-1: 60bda328823314ccea34ed731b7ee79e6c93aa9e SHA-256: 04b7a00088cb464e596e223860638e135dd9bf4864e9cb9e648183259be59483
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'free play pdf', and the presence of numerous Shopify links suggests an attempt to blend in with legitimate content while directing users to malicious sites. The ML classifier strongly indicates maliciousness.

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.
  • 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://ttraff.ru/pify?keyword=butterflies+are+free+full+play+pdf In PDF document text
    • http://xobaj.angelscafesharon.com/uploads/1/3/1/8/131857920/nafokodupe-tegemutaji-vimapevotoj.pdfIn PDF document text
    • http://sukeg.sabrinamarasigan.com/uploads/1/3/2/6/132682883/50777790862.pdfIn PDF document text
    • http://mideropef.voiceensemble.org/uploads/1/3/0/8/130874655/fokazadevabibab_zuxis_luluroz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9461/files/is_pogo_free_to_play.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/gamipogaviveroja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/57483167160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1643/8438/files/dojogezujimonomen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0935/7477/files/sozidebanasepimubejafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/83501181836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6199/6694/files/comidas_saludables_para_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5351/files/demakugipujaxijobedijem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8275/9836/files/80795564988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4072/7463/files/cavatina_duet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7955/7529/files/tokadixesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/automotive_can_bus_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5639/7464/files/rajuronorabebasugojeseg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0835/8561/files/gladiators_weapon_crossword_clue.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

Related samples 1

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_off0000758a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x758A 5188 bytes
SHA-256: ae12bb16df2d486e978a937be64fbba41640298ee4f88fa7fbfa5fa04caecd16
font_01_sfnt_off0000874b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x874B 10236 bytes
SHA-256: c10965c7ffb4285b2267f32aa9c53a7f08f91a0b5d559d691d21cbe142747756

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