Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a60258643cbaa61…

MALICIOUS

PDF

40.7 KB Created: 2020-08-19 04:03:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2cbd7a4c69c70ad42ac57d666d69949a SHA-1: 49810c6715ceac75eaa7e55eb80dc17970edb826 SHA-256: 0a60258643cbaa61e6dc13899efbfa45860b2f0f50281d2874eb1c0c1d67e1e8
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 partially corrupted, includes the same malicious URL and several benign-looking Shopify URLs, suggesting a link farm or SEO poisoning tactic. The primary malicious URL is likely intended to lead the user to a phishing or malware download page.

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=life+cycle+of+bacteriophage+pdf In PDF document text
    • http://files.mikewmorgan.com/uploads/1/3/0/7/130775506/0d53aa98450f.pdfIn PDF document text
    • http://misapug.libertyruth.com/uploads/1/3/2/8/132816066/nojarexosinope.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/1/0437/1392/1175/files/65320603770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/50681106843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6912/8354/files/69311276405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7881/0789/files/31605613628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1780/3675/files/undo_last_git_commit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7270/1095/files/etiologi_abortus_inkomplit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/cctv_camera_price_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9650/6521/files/labetalol_hcl_davis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/a_question_of_power_bessie_head.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_off00005df7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF7 5420 bytes
SHA-256: a4b9f2e60e432232aa5e9c59235f069010f7e08049d39b4b96fadaf6f4d89afc
font_01_sfnt_off0000705c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x705C 11460 bytes
SHA-256: eb41decd48af57e74ebcc2458ff32e1c60d6a3ebb26567aea679c48b1d56fe39

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