Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8f219a5f237cd00…

MALICIOUS

PDF

36.0 KB Created: 2020-08-16 02:02:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 259dc4a4843398fbfa2c48e0cd1ff148 SHA-1: c2e8a3a76a36fd0988130b47abd6368f6109ccd6 SHA-256: a8f219a5f237cd00ab5d43760d07ec71c807402ebdd7c3d50f574e52caeff4d7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wb?keyword=magento%202%20developer's%20guide%20pdf%20download'. This, combined with a PDF link farm heuristic, indicates a likely phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to 'Magento 2 developer's guide pdf download' and the malicious URL, reinforcing the lure. No scripts were extracted, but the presence of multiple unknown URLs suggests a multi-stage attack.

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=magento%202%20developer In PDF document text
    • http://fugej.nphsjrwolfpack.com/uploads/1/3/0/9/130969341/3438753.pdfIn PDF document text
    • http://files.intouchfr.com/uploads/1/3/2/6/132683000/wekejoxosebix_loxas_vapipuwewinodi.pdfIn PDF document text
    • https://ttraff.com/wb?keyword=magento%202%20developer's%20guide%20pdf%20downloadIn 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/1/0434/4617/3852/files/irctc_reservation_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2538/2051/files/tamil_movie_bhagavathi_theme_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kividerinogofigizunewif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/xexatevarugogonaronijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4301/2256/files/21992974003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/lu_factorization_matlab_code_with_pivoting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8127/4278/files/58430046111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5388/files/integral_calculus_word_problems_with_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8156/3286/files/43021498532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8938/6901/files/psychology_david_myers_9th_edition.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 4

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_off00004f26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F26 5532 bytes
SHA-256: df0da90329b27e35d506a156eef2d8500e0305a9051a6967a12e8f8f8c966ff3
font_01_sfnt_off00006230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6230 9696 bytes
SHA-256: b43c5f9270fe0d13f62e9371487de0725eecb949d76a61203d5c8734a218e0f5

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