Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a74ba1fce8f60fa…

MALICIOUS

PDF

45.4 KB Created: 2020-08-24 01:04:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49c23670818c780da7e820dc8e984a74 SHA-1: 7cdebabdc0f6d4b902a6280c9ecb84d6887bcdfc SHA-256: 1a74ba1fce8f60fa91d6ddeab56648b2986e28a9551d57c4f503d89574bcbd64
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. One of these links, 'https://ttraff.com/pify?keyword=harebell+piano+sheet', is identified as malicious. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. The presence of a 'download button' heuristic further supports a malicious workflow. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=harebell+piano+sheet In PDF document text
    • http://xurepe.higgins-umc.com/uploads/1/3/1/3/131398134/9558572.pdfIn PDF document text
    • http://files.yourfitnesschloeshea.com/uploads/1/3/2/8/132814355/0992dec428.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/1/0435/3117/4039/files/adventure_time_filler_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8200/6171/files/fejipitejopob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5780/6488/files/nijulisozifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/monedowujaraguralawopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3165/7638/files/sovokipevokijaliwafezote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5997/0202/files/mowapazezininipuwinoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3842/5497/files/behavioral_approach_of_performance_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0255/2742/files/rojev.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 2

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_off000059e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E0 4796 bytes
SHA-256: 6fb7fa7183fee7857598ccea6f5b31e0f1371d533bb9c88213bdafe1ef32547b
font_01_sfnt_off00006a09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A09 15204 bytes
SHA-256: 98f126e6cbebdd95859e1b58118e222484bc5cfe320476d9efbfa40d4a4ad949
font_02_sfnt_off00009935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9935 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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