Malicious PDF — malware analysis report

Static analysis result for SHA-256 458df3b1fa30fd5f…

MALICIOUS

PDF

49.1 KB Created: 2020-08-13 15:49:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cad19cb01f057bd7c4794cb81fe60439 SHA-1: 58207e62bb5a4a7da6bba8af9f510b8103659738 SHA-256: 458df3b1fa30fd5f34d74c32e254a25c77c4a4f1ea9a7e23e10c8684a75483be
194 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=halimbawa+ng+barayti+ng+wika+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links to external PDF files hosted on platforms like Shopify. The ML classifier also strongly indicated maliciousness. These factors suggest the document is designed to lure users to malicious sites or manipulate search engine results.

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.cc/pify?keyword=halimbawa+ng+barayti+ng+wika+pdf In PDF document text
    • http://files.lmnaturalhealth.com/uploads/1/3/1/3/131398547/lumit.pdfIn PDF document text
    • http://bisewoj.mkmwoodkreations.com/uploads/1/3/1/4/131438464/61d3f1c8.pdfIn PDF document text
    • http://files.solomonbamidele.com/uploads/1/3/0/8/130874474/715263.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/1/0429/9902/1717/files/sodevubuvoxidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0363/4079/files/lolumagalagitiziv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9448/1823/files/ascii_unicode_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/japoxotoruzub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gifowugebivagobawogun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1583/9645/files/48589688326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1667/5740/files/mivekudature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/lajowoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4276/5991/files/alice_munro_dear_life_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/babazezefijoxefumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/3945518394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0141/3785/files/synonyms_and_antonyms_worksheet_with_answers.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_off00007d83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D83 5544 bytes
SHA-256: c2ccc73a22b1de27e8e82a6a4294931465171033c3553302c83abaef20dfbaa8
font_01_sfnt_off00009059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9059 11072 bytes
SHA-256: cc2c477f9f719781b609852555bd0c8952fb6d604a3c004808260a8a3a1edd16

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