Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d776532282ffa37…

MALICIOUS

PDF

56.8 KB Created: 2020-08-12 08:06:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 624ce128d5e6137654e0ca0c3638be0e SHA-1: c76b991de6623ca3761eda9ac1bd56484923d264 SHA-256: 6d776532282ffa37f77cb67b8da0fd9d7312d5eb59728967e18a0c56f756c3bf
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting the primary purpose is to drive traffic to malicious infrastructure. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-optimized links further supports a phishing or scam campaign.

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=jurnal+cawan+petri+pdf In PDF document text
    • http://files.dechineselincs.com/uploads/1/3/0/7/130740625/5314133.pdfIn PDF document text
    • http://dipozodop.mlkcelebrationcommittee.com/uploads/1/3/0/7/130738848/pibijo.pdfIn PDF document text
    • http://files.cedarvalleyangels.org/uploads/1/3/1/3/131381881/741f6950.pdfIn PDF document text
    • http://files.gospelquebec.com/uploads/1/3/1/4/131408942/nigevezud-rixomusurir.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/1/0434/7805/7122/files/b_pharmacy_question_papers_pune_university.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5590/4918/files/lapejezesemamorasanagupug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7303/6697/files/saints_row_2_money_cheat_xbox_360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/gotunema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/paper_chromatography_lab_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5823/files/6675876252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/povomopev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0258/5500/files/8392578260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4299/4336/files/we_are_young._mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/befuxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7482/2043/files/cal_poly_san_luis_obispo_map.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 5

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_off0000a1b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1B2 5052 bytes
SHA-256: b032e5a8b788ea7d1c7c39157a21703bc506f11098e9dac01871804631ff49e0
font_01_sfnt_off0000b302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB302 10324 bytes
SHA-256: 270d83452785896d6e8d4bfae0104171c1d53dc629c3578eca84d9016e28de4c

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