Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee8f860552dd4a6…

MALICIOUS

PDF

45.7 KB Created: 2020-08-09 20:01:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 912fd1584c3da11ad0eedd30b0dbc776 SHA-1: e4cf1c7d89f5ae6c6f8b7680100a3729e4873cdf SHA-256: 9ee8f860552dd4a65f331fbca8fdb1e16f0143a6a8bbad525cd51078dd6301b3
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=radical+candor+by+kim+scott+pdf', which is also listed as a critical finding. This suggests the primary purpose is to redirect users to malicious content.

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=radical+candor+by+kim+scott+pdf In PDF document text
    • http://files.estatecomputers.net/uploads/1/3/0/9/130969448/2281393.pdfIn PDF document text
    • http://files.muchzeal.com/uploads/1/3/0/7/130776037/buxajege-zajeti-nesisotew-vemopefuwaxiz.pdfIn PDF document text
    • http://files.jsarchiveconsultancy.com/uploads/1/3/0/8/130814245/xemuzisisojise.pdfIn PDF document text
    • http://files.cassowaryday.org/uploads/1/3/1/4/131453022/fawuxuxabos_tudekapomuv.pdfIn PDF document text
    • http://files.polarmininginc.com/uploads/1/3/1/0/131070718/9994496.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/1/0433/0065/1158/files/bouteloua_curtipendula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5874/7800/files/sololearn_certificate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2596/4957/files/5192102186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9068/2783/files/internet_addiction_symptoms_evaluation_and_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/36607209582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2468/4955/files/data_mining_darshan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5645/5067/files/kenmore_refrigerator_model_106_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5360/5273/files/xogadateb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7218/2685/files/53832114767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/savowogofoxifonikili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1421/8143/files/numinekewudodoweda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0846/5828/files/ginobu.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 8

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_off00007489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7489 5616 bytes
SHA-256: 20d0e3622fcf829d4a94d50073ebc0c5466f13adbbfdb0c9c89c2d357563b74a
font_01_sfnt_off0000879c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x879C 9968 bytes
SHA-256: 9329c7f39f1d5ae3003b8c92ce5e5cfb6bd65bd4c1e830622877b583a94b3eac

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