Malicious PDF — malware analysis report

Static analysis result for SHA-256 13e03c6efb4465f6…

MALICIOUS

PDF

49.6 KB Created: 2020-08-14 05:50:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f66de246613e9b7e32ca00eba9b09fd4 SHA-1: 1edfdc93ff374fa791952d0d80e62bae7bf1d603 SHA-256: 13e03c6efb4465f64e9da5842ac36ffae172748744401d1e5d976a278e42d389
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, also contains this redirector URL, suggesting an attempt to trick users into clicking it. The presence of a large number of PDF links, many pointing to Shopify, indicates a link farm strategy, likely for SEO poisoning to drive traffic to malicious sites.

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/wb?keyword=role%20of%20technology%20in%20crime%20prevention%20pdf In PDF document text
    • http://wogujol.opryconsulting.com/uploads/1/3/1/4/131436977/xikubajitem_gejom.pdfIn PDF document text
    • http://rakulexir.premsc.com/uploads/1/3/2/3/132303189/jigelabe_sovet_keledax.pdfIn PDF document text
    • http://files.lifes-a-trip.com/uploads/1/3/1/8/131871424/penekovuxen-xonevunuju.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/1/0432/4848/4507/files/love_252byou_andi_252bimages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7509/2132/files/75605338264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7095/5415/files/sejarah_amandemen_uud_1945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7813/2636/files/kofeludovupalinev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/nakufesoruwasurutagike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3380/files/xotobisojowapulunusotamow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/66242386944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/83308683126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3459/7784/files/new_vegas_jsawyer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8424/2325/files/sales_incentive_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4133/3147/files/upsc_cds_ota_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5841/1158/files/basketball_score_sheet_fiba.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C87 5348 bytes
SHA-256: 523789f9846e2cce3228a234047fc48652259c41bb743f6391c95386f38950be
font_01_sfnt_off00007ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA2 9720 bytes
SHA-256: 961de69741be93b9343665f4e1f106e22687ff2e883151d81a0f23777698ff6b
font_02_sfnt_off0000a018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA018 17168 bytes
SHA-256: 08fc53de2a166f5bfb9e3ba992aebc9194b4a196913d34b574925354ef599967