Malicious PDF — malware analysis report

Static analysis result for SHA-256 02a1e824513513e1…

MALICIOUS

PDF

39.6 KB Created: 2020-08-27 22:39:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6677f6b5f05ddb7689162c1e3d31a5e1 SHA-1: 76c6d2ae50bbf8a6aa0b34484b75465d98658b7e SHA-256: 02a1e824513513e10d3b39f38b7e6cf492f4908f3aab0a7b8a993a0093b7c2a2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and several Shopify-hosted PDF links, suggesting a link farm or phishing lure for free downloads. The ML classifier strongly indicates maliciousness, and the presence of redirector links points to an attempt to lead the user to a malicious site.

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=major+schools+of+thought+in+psycholo In PDF document text
    • http://webume.turncoatmenswear.com/uploads/1/3/0/7/130776271/tuzaro-naxugizina-keporajepo-savufujarevaju.pdfIn PDF document text
    • http://files.jacksherd.com/uploads/1/3/1/6/131606133/6024745.pdfIn PDF document text
    • http://files.ironthong.com/uploads/1/3/0/7/130775970/nefufuxisafereli.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/1/0446/8968/6681/files/cen_tech_multimeter_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0340/3678/files/savalanofokujitinuxukizaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6638/3768/files/active_and_passive_voice_interrogative_sentences_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2707/1127/files/vepifexajewibodimipoxizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1568/3744/files/88448886286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8238/9406/files/anesthesia_pulling_teeth_bass_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/37558586101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4300/2270/files/simple_past_regular_verbs_exercises_multiple_choice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4233/3084/files/human_christina_perri_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6063/9384/files/22938829066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4774/5698/files/zozovuruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0609/9605/files/different_android_versions_and_its_special_features.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC6 5460 bytes
SHA-256: cc126a4ae6da4c08229ffce0457ca84deb2c61658d9908930299da5a8fee9055
font_01_sfnt_off0000706c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x706C 9720 bytes
SHA-256: 61c8bf2cfbea7bbcd07b116c26fbacec99d704b78cc02131513c04f3d4ca0acd

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