Malicious PDF — malware analysis report

Static analysis result for SHA-256 0408154bda2b92c4…

MALICIOUS

PDF

34.2 KB Created: 2020-08-14 12:28:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f80f80222ca42c245a464dea97d484a6 SHA-1: a825684c0b64b3b0415059efa3014eafb7d3a818 SHA-256: 0408154bda2b92c4b3b66b0f94a538e691d39e8c79cea2a6b4384f8ae9b06e1d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is a manual, likely a lure to encourage clicks. The presence of many PDF links and a malicious redirector indicates an attempt to lead users to malicious content or phishing 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/pify?keyword=lancer+carbonator+manual In PDF document text
    • http://files.thevanservice.com/uploads/1/3/2/3/132303382/midepuzulumug_sijete_linogi.pdfIn PDF document text
    • http://files.kaybethavery.com/uploads/1/3/1/1/131164048/mezadavabibabagiz.pdfIn PDF document text
    • http://files.ambcircleoffriends.com/uploads/1/3/1/8/131871494/supare.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/1/0431/8016/3227/files/titeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0394/4853/files/esl_ed_pronunciation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84860081798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2141/8147/files/66649531049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zogubarekerebadopotuleju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3556/4949/files/agama_adalah_nasihat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3458/0891/files/27522372126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9956/8795/files/retixogalapevefexojag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/arcswat_2020_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5407/5799/files/system_analysis_and_design_notes_for_bca_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0766/2490/files/applied_bayesian_statistics_with_r_and_openbugs_examples.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_off00004905.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4905 4848 bytes
SHA-256: d486bc204f4677c62b127a34313917be926f605dfb984594dea78c74928b0699
font_01_sfnt_off00005965.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5965 10136 bytes
SHA-256: 44d6ad27f2ffcef110c414e66d3ff81cec2cbbb0fdf886cada4ac5cfee5765d6

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