Malicious PDF — malware analysis report

Static analysis result for SHA-256 c362710902170f5a…

MALICIOUS

PDF

39.1 KB Created: 2020-08-09 18:29:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8aba9d8cf67a391aec9f597a0ee70dce SHA-1: 708b61f8669b6375cb99fbf04a4bf2c7be0f3c63 SHA-256: c362710902170f5a98c1aeacaa51ead587cf021ba7a896ce92765897d4197de6
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used to redirect users to malicious websites. One critical heuristic firing indicates a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting it is a worksheet, which serves as a lure. The primary malicious IOC is the redirector URL, which likely leads to further stages of an 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.cc/pify?keyword=micrometer+screw+gauge+worksheet+pdf In PDF document text
    • http://files.enhanceplacementstories.com/uploads/1/3/2/7/132711954/30421c8f.pdfIn PDF document text
    • http://files.basementcityproductions.com/uploads/1/3/1/4/131483148/wupate-xexekinazuduz-mopivujuko.pdfIn PDF document text
    • http://dutizeza.fourswims.com/uploads/1/3/2/8/132814930/pigifigizon.pdfIn PDF document text
    • http://files.jeffreydscott.com/uploads/1/3/2/7/132712129/228e80e465c23.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/1/0438/9961/7448/files/62979296677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8415/9903/files/9999781834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/bunidagovinotagirekimez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65294746239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7150/4537/files/dexizugigazuvaxifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1361/5264/files/avery_template_8167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5594/6655/files/alleluia_handel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2328/5928/files/vetizir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8341/5204/files/88748580264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6929/9101/files/sonic_advance_sprites.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1763/3945/files/94186065639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7495/files/dajavapesutukifaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/894016533.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_off000058b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B7 5700 bytes
SHA-256: 322a05a1142436769c1f904a2f8be68c9a3459b83f4da5ac79afe3ac9ec3c67a
font_01_sfnt_off00006c19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C19 10440 bytes
SHA-256: df6ff63cca2335eaba0320c6ed724e4af56f032fa6306d97f88c035cdfa62617

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