Malicious PDF — malware analysis report

Static analysis result for SHA-256 881c06a182de9a1a…

MALICIOUS

PDF

40.9 KB Created: 2020-08-05 01:59:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e43e91cc5222f0cad9d185d6fbde3cf SHA-1: b8aadc037eefe0f437e0d8924c4e64833e728fed SHA-256: 881c06a182de9a1a12033bef826e4aecdedef43e254462d18db5a4c8d95df8d9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm. The primary redirector URL, https://ttraff.com/pify?keyword=basic+networking+concepts+book+pdf, is flagged as malicious and likely serves as a lure for phishing or malware distribution. The document body, though heavily obfuscated, contains references to the redirector URL and other Shopify links, reinforcing the phishing lure.

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.com/pify?keyword=basic+networking+concepts+book+pdf In PDF document text
    • http://files.ionnibiru.com/uploads/1/3/0/8/130873855/3685ac83.pdfIn PDF document text
    • http://files.deepdabarberonline.com/uploads/1/3/2/7/132710601/4085536.pdfIn PDF document text
    • http://files.rightcareerfit.com/uploads/1/3/2/6/132682802/8803123.pdfIn PDF document text
    • http://files.apparatusdancetheater.org/uploads/1/3/0/7/130738969/dogiviziz.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/1/0433/0687/7080/files/78986196578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3556/4949/files/attorneys_bookkeeping_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7630/2486/files/52513907219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5602/files/mabopulisamobitozumenom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43127542751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/40759127524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/39783841905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/10814860034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9432/6949/files/zulasavelusoxix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0398/5570/files/70221146968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9101/8396/files/69662499591.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 6

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_off0000619f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619F 5636 bytes
SHA-256: b9bdaf99951e9f580034c2d49121f837ebfa602fbb81e7acf1c17b42347a20ad
font_01_sfnt_off000074ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74EC 9936 bytes
SHA-256: 02533130b00014e80b0cb04103a2760eb7ecf5ade3b57018e43e921e647fb72a

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