Malicious PDF — malware analysis report

Static analysis result for SHA-256 30b581e72274fc33…

MALICIOUS

PDF

44.7 KB Created: 2020-08-27 20:54:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79f4b43810e20ef0dba53735a3446789 SHA-1: d1836a550a358fd7deb8bbceae2ebe96afef4505 SHA-256: 30b581e72274fc33bebbb63d2db5dc48cda88fa436b8fba5efdf317ebae5751d
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, designed to appear as legitimate documents. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=ecg+pdf+manual', which is likely intended to lead the user to a malicious site. The document body, though heavily corrupted, contains fragments suggesting it is disguised as an 'ECG pdf manual'. No scripts were extracted from this sample.

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=ecg+pdf+manual In PDF document text
    • http://files.dcequestrianimports.com/uploads/1/3/2/7/132740978/4183541.pdfIn PDF document text
    • http://files.mcnairy.com/uploads/1/3/1/4/131454373/tugogavekofawez_sekoke_damapu.pdfIn PDF document text
    • http://files.wildwoodsprings.org/uploads/1/3/2/6/132695392/lopamibul-fozerefidu-tuzubida.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/1/0431/2144/2965/files/54388893409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6406/5190/files/elkay_drinking_fountain_cut_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0081/4998/files/93239029694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3534/4539/files/platforms_in_old_delhi_railway_station.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/zopijomefowokufelodorunud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0124/2015/files/ligapamurip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4192/9886/files/nature_domain_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7522/1144/files/nelson_grade_12_biology_textbook_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9472/7074/files/accident_report_number_abu_dhabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4214/3397/files/16623929107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1997/6350/files/zafudejali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3248/6823/files/dusuxezuragiw.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 7

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_off000072c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C5 5160 bytes
SHA-256: e840f912e6bdeb2127df5dcba640d64c018dc41410fff8db63d5d6b653a37426
font_01_sfnt_off00008446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8446 9832 bytes
SHA-256: a400fa7ada121a64058d7eefc58410022ec538c857edc3b5ecdeb4d10b1abf4b

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