Malicious PDF — malware analysis report

Static analysis result for SHA-256 113087e0e596a862…

MALICIOUS

PDF

53.4 KB Created: 2020-08-23 07:37:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e02e794bfd3356ce9c783f82a712c18a SHA-1: ac2c35008b426b484f3c647b90bf04fd37658e83 SHA-256: 113087e0e596a862cc49e9340ba784281567fdd56358a83fea17b363e14c3f52
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector infrastructure identified as malicious. The document body text and heuristics indicate a lure for a "commonplace book template" which likely leads to a phishing or malware download site. The ML classifier strongly supports the malicious verdict.

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=commonplace+book+template In PDF document text
    • http://files.navakarnatakanirmana.com/uploads/1/3/0/7/130739652/74c1a7c91ad90.pdfIn PDF document text
    • http://files.pedahzur.com/uploads/1/3/0/7/130739674/ed9a3c53a489d.pdfIn PDF document text
    • http://files.daviemactile.com/uploads/1/3/0/9/130969352/masorusokov_lopotis_babimosofajefoz.pdfIn PDF document text
    • http://files.undinetherapychicago.org/uploads/1/3/0/7/130738806/9599608.pdfIn PDF document text
    • http://files.transformational-school-of-essenian-arts-of-healing.com/uploads/1/3/0/7/130739916/tikopunibobijitopi.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/1/0459/9824/3999/files/93847300071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jomanumono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/42035111768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3760/files/74478647627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3830/2630/files/escala_de_alvarado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8692/0347/files/ffxiv_mount_unlock_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7177/4615/files/tokevokatapax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/tisowufutajapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1186/5751/files/fitted_sheet_folding_meme.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 6

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_off00009587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9587 4916 bytes
SHA-256: b8a5a8f92637d6b6f6f35c458ec26611bbc7b635456f1d82b065ccccfe5ce814
font_01_sfnt_off0000a629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA629 10120 bytes
SHA-256: 8a8000cbd97d4ad65993d4446773157e54bcd4b3882a52f5f35668ccd841d015

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