Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1c64b9c20c5999a…

MALICIOUS

PDF

37.0 KB Created: 2020-08-21 16:12:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1274fcbedfa8e7cc164e96df263f96bd SHA-1: 656e9c08d6941ec75ddfb38d99f2f560dfb82d59 SHA-256: a1c64b9c20c5999a69b1a4d316aa4732a1a1eb462d9d271330a4fc9cec023237
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.com/pify?keyword=2016+cherokee+trailhawk+manual', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to a '2016 cherokee trailhawk manual' and the authoring application, suggesting a lure to trick users into clicking the malicious link. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy. 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=2016+cherokee+trailhawk+manual In PDF document text
    • http://files.thespareroombook.com/uploads/1/3/1/4/131455283/8592225.pdfIn PDF document text
    • http://files.nyelaw.org/uploads/1/3/0/9/130969790/gigaloke.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/1/0439/4899/8811/files/brobar_boli_punjabi_song_mr_jatt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/programs_template_microsoft_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/53297007221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/cemu_update_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6673/7311/files/zisebadebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6537/5908/files/runerirufibosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1812/5465/files/kamuwakenolexikojegamugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0624/6557/files/moviescounter_tv_bollywood_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71340125447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/debafezaxosowomugisaxe.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_off000052f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52F5 5400 bytes
SHA-256: 047cf952b18891f45db66339632f3e383c936083e310a5231e4561c560127868
font_01_sfnt_off00006533.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6533 10048 bytes
SHA-256: f2a0767ad76f484cfbdad1d63d21aba668259ee4807d6816e71e6649867c4f63

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