Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b4e16c1f596c971…

MALICIOUS

PDF

105.0 KB Created: 2020-08-04 22:33:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59dc2ccd1e9606925956e64288c5ab74 SHA-1: acd7af05992fc5c3ae9218dd1036999b92f0e732 SHA-256: 0b4e16c1f596c9715139fc52fa3a7d38319e4c0753ecb0115cbd69f7a14fa72f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to an SEO redirector, specifically `https://ttraff.cc/pify?keyword=apqp+manual+pdf+aiag`, which is flagged as malicious. This indicates a phishing or malware distribution attempt disguised as a free download. The ML classifier also strongly indicated 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.cc/pify?keyword=apqp+manual+pdf+aiag In PDF document text
    • http://files.northplainfieldpark.com/uploads/1/3/2/6/132682030/nekizadoputeg_tuxamasozidalul_mumevamibe_jipidap.pdfIn PDF document text
    • http://files.moannasworkroom.com/uploads/1/3/2/6/132681796/gopitowi.pdfIn PDF document text
    • http://files.kocanada-usa.com/uploads/1/3/1/4/131437538/zorodoke.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/1/0432/4923/8178/files/city_of_splendors_waterdeep_3._5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7872/0414/files/midegewukuxuwofemulub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/fewifawepad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5412/0606/files/52260994093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1611/files/43274519272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/10948963452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/xolirovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9167/3763/files/tipixol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9952/1181/files/sokutejizuzegeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/36182945160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5812/6245/files/27270478328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6275/4461/files/41014660317.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 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_off00015c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C45 5204 bytes
SHA-256: e27f3a3085e8410723a26185016816e7521b5d47d5d4f3d0d6e14ec8c9d089fa
font_01_sfnt_off00016de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16DE7 12820 bytes
SHA-256: e856e3d2eed4e9194edc08423cca3e129adcb650e52039624ede049a8abb7140

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