Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7f9cbf01c13a3ac…

MALICIOUS

PDF

43.6 KB Created: 2020-08-09 00:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e31d8d0644803da954cc5f88dfec2e0 SHA-1: 3c16155c678aa3285c5289a4ed0ceb7b93e8eba0 SHA-256: e7f9cbf01c13a3ac9da22f6ef3360dd272c5a1337df900fa699c4ca5c139d224
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Buku sistem pencernaan manusia pdf' and the malicious URL, suggesting a lure to download potentially harmful content. The presence of numerous links, including the malicious one, indicates a link farm or redirection attack designed to lead users to malicious infrastructure.

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.ru/pify?keyword=buku+sistem+pencernaan+manusia+pdf In PDF document text
    • http://xezir.winnebagoarchersinc.com/uploads/1/3/0/7/130776487/navamufut.pdfIn PDF document text
    • http://files.aumyogaannarbor.com/uploads/1/3/0/8/130874154/3cd2f4d5eb4d99.pdfIn PDF document text
    • http://files.stagemusicstudios.com/uploads/1/3/2/6/132681556/kajezexidopevotoxis.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9056/6556/files/youtube_to_mp4_longer_than_2_hours.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/sufitepaveris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0279/7986/files/nujivuzoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3989/1357/files/rizeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/59240112947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/passion_play_2010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5780/6488/files/jafekuveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5656/9249/files/10701095156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9177/1046/files/boxafikufotivigiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3810/5000/files/danariwixuguxituzikevosub.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006065.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6065 5152 bytes
SHA-256: 4845607ed6ca29d4554e29833a5db17c473894f8f94003dc8c2c78775b2b7ed8
font_01_sfnt_off000071d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D0 9772 bytes
SHA-256: 295f2566f69d76e164216470697a1067aa1f13086d2cc8ad66a1b80f4acca315
font_02_sfnt_off0000934d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x934D 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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