Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8936416bfa5cef2…

MALICIOUS

PDF

46.6 KB Created: 2020-08-11 21:19:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 638a5655b5a52f6ac4e5ea5e59a7257e SHA-1: 7d08947e504f428500557b84878932c535c00268 SHA-256: a8936416bfa5cef2c029e814465a45cc5a4a9e56aa19bd8c2fa78c635fa97cde
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a mass of external links, many of which point to benign Shopify domains, but one critical heuristic identified a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=abiding+in+christ+pdf', which is likely intended to lead the user to malicious content. No scripts were extracted from this sample.

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=abiding+in+christ+pdf In PDF document text
    • http://files.whiterosestance.com/uploads/1/3/1/8/131856166/a477b1bf5a0a.pdfIn PDF document text
    • http://files.lamassou.com/uploads/1/3/0/7/130775361/c99bf19fa.pdfIn PDF document text
    • http://files.actingonfaith.org/uploads/1/3/0/7/130739906/1759211.pdfIn PDF document text
    • http://situsuw.jmr-art.com/uploads/1/3/0/7/130738629/nivolumepanag_govufiju_mazazozomunepek_mapurajelojevet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3536/1442/files/21976525302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/zamuzejawazavezugusor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/forgotten_realms_interactive_atlas_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/synonyms_for_collapse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9040/3737/files/65771366142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3525/5203/files/44419959326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/tinkers_construct_best_pickaxe_modifiers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9713/6030/files/mibogetuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/98401510092.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B41 4864 bytes
SHA-256: b150ec364afdfd8cbac10bcf940725cf1031f15a7c1cb276d4ac126196cd8438
font_01_sfnt_off00007bb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB1 10480 bytes
SHA-256: 25feb804c3f11cb65a122ea4a1fa81d955cc2a2c5d6b83c624cebc673b47a833
font_02_sfnt_off00009f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F85 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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