Malicious PDF — malware analysis report

Static analysis result for SHA-256 a303e63f8d827e0f…

MALICIOUS

PDF

42.1 KB Created: 2020-08-05 08:53:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02a4075d8f7024ef4b224bf830cec841 SHA-1: 2af794ccac9986c30fd94dffecf318a647b40c83 SHA-256: a303e63f8d827e0f5516845733f6206ac111795b839f22d74af5fffb123c0344
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is designed to lure users into clicking on what appears to be a legitimate application form. The document body and embedded URLs indicate a social engineering attempt to trick users into visiting a malicious site. The ML classifier strongly supports the malicious nature of this PDF.

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=burger+king+printable+application+pdf In PDF document text
    • http://files.courthouseclassic.com/uploads/1/3/0/8/130873795/sojimanubiwokew-wakazekesupaf-nulovopiruvi-xajobu.pdfIn PDF document text
    • http://files.hardtofindprops.com/uploads/1/3/1/3/131384583/2382609.pdfIn PDF document text
    • http://files.seychellesbirdrecordscommittee.com/uploads/1/3/1/3/131379183/3769002.pdfIn PDF document text
    • http://files.knuterikalnaes.com/uploads/1/3/0/8/130874554/zolimugafilusoxodizi.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/1/0438/0341/0589/files/eu_blue_card_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/gipewewibedopafikotifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/46522645562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6923/5619/files/bobedidudigozomirakajoseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/cbse_class_12_maths_2020_question_papers_with_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9357/1224/files/yah_trick_ya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0731/7912/files/characteristics_of_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/91191226543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/21366200429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7118/3777/files/76972221557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4874/6651/files/murepevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/ausencia_definicion.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_off00006549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6549 5400 bytes
SHA-256: 8baa1c445012ae24520aecc59b320f6c4e432852b701f46a2100d5577e775ba5
font_01_sfnt_off000077b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B7 10532 bytes
SHA-256: 0f956151932d9623d69794fcfb2f247bb19e3e5e149d09325156ff8dce58fd55

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