Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97fbc2c569bdde0…

MALICIOUS

PDF

41.4 KB Created: 2020-08-13 23:21:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9fef6cd5fd52b90188b201dff3745266 SHA-1: 2b91ef311099bf116ac6e32cfe393c0536ac71d2 SHA-256: e97fbc2c569bdde03911e9dadf2fa27f72d8d4088c0686dc4870e35b64eb3cc0
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic firing indicates a direct link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though malformed, contains text related to 'types of communities worksheets 2nd grade', likely a lure to encourage clicks on the embedded malicious link.

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=types+of+communities+worksheets+2nd+grade In PDF document text
    • http://files.lmccpa.net/uploads/1/3/0/7/130738876/7822468.pdfIn PDF document text
    • http://xuneludun.naturallymusicalstudio.com/uploads/1/3/0/8/130874633/7524049.pdfIn PDF document text
    • http://wonibi.doublebassbridge.com/uploads/1/3/1/8/131857315/dafibutewegax-jemumixepiresum.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/1/0431/9471/2228/files/94589136606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/9141/5460/files/lopressor_davis_drug_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2424/5155/files/jupizejor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3917/5335/files/aromatic_nucleophilic_substitution_reaction_mechanism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/ximepenixezunugedegogoreg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8156/2280/files/66909624009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6930/1151/files/bimumotajobilapepebodove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9525543421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1147/3571/files/raxiwapesifebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8113/0394/files/lesoluvazanunonunavajos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/43556871101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/favovokuvovam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/mawonofojibetedupe.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 3

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_off000061fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FC 5876 bytes
SHA-256: 77bff5afa39650a832af1e227c3c92b4d955befcc750297f8d7e39ac5357e5cd
font_01_sfnt_off000075f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F4 10176 bytes
SHA-256: 96ca6e506a1e9ab458b908234f912b16d6dbed1311ca61e155f777620f954908

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