Malicious PDF — malware analysis report

Static analysis result for SHA-256 8790396d7c101a96…

MALICIOUS

PDF

58.6 KB Created: 2020-08-08 00:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: efb54b0d1cfba0d9578bb4a4c3954de1 SHA-1: c2a5442c3a7caa9c230f39f7726c60758e0ba20f SHA-256: 8790396d7c101a96ac68538983499bc76b16e82aded85efb8a02a36a4047919f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to a redirector service, which in turn leads to other PDFs hosted on Shopify. This pattern is indicative of a link farm or phishing campaign designed to obscure the final destination and potentially distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=travelport+galileo+commands+pdf In PDF document text
    • http://files.eastsidechurchofchrist.us/uploads/1/3/2/7/132711966/kowivilapofos.pdfIn PDF document text
    • http://files.schrockeducates.us/uploads/1/3/1/6/131606492/90e4f.pdfIn PDF document text
    • http://files.karamfamily.ca/uploads/1/3/1/4/131407968/3708859.pdfIn PDF document text
    • http://files.tcca.shop/uploads/1/3/2/8/132814168/wufikajolewubeka.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/1/0428/5959/3894/files/nidefosupowofimufasubuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/vesugokuboxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/sabidixikuvoluzigilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1730/4226/files/zukepomagifaxetas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3707/3314/files/9329958213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0105/2310/files/metabolismo_del_hemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3210/1543/files/58186102715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0455/1590/files/zoxedife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9928/1821/files/jusebovuludanurukiroloke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3342/6082/files/starting_out_with_c_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/juworidejatev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dovaxetudomorunuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/77710014623.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 4

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_off00009d65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D65 5484 bytes
SHA-256: a146babdefc836cd22a10f60fc7d24e0821dcc662e16231726977984f2137b0e
font_01_sfnt_off0000b002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB002 14292 bytes
SHA-256: 2a278416099bf029f87cd7b236fe6411e122ab81b3ad27a6a2b2c52e2304ac19

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