Malicious PDF — malware analysis report

Static analysis result for SHA-256 02d9021d566953a5…

MALICIOUS

PDF

35.8 KB Created: 2020-08-17 05:59:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c75dc4405516484bbe05beae90f312e2 SHA-1: 9befff42fc74683a6f64164fbe45482b67405bfe SHA-256: 02d9021d566953a5f101ca3091185c38cfe30b1a7a4bd6d148129d079f84b285
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a link farm and redirects users to a malicious URL, likely for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the embedded links point to known malicious redirector infrastructure. The document body itself is heavily obfuscated but contains the primary malicious URL.

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=traffic+reports+bridgwater+somerset In PDF document text
    • http://files.dougsheat.com/uploads/1/3/1/4/131406592/mexivubelab.pdfIn PDF document text
    • http://malonofi.charlesstickler.com/uploads/1/3/0/9/130969191/3519099.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/1/0434/1497/8718/files/evs_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/19971081221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4573/2007/files/janolosuzinumuwagoguvemes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6700/6364/files/tagibobavov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6721/files/fusatovowavavojiladufif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3082/3583/files/dusixotegazuwatujama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1330/7541/files/jorufexuvefemulobugaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2051/files/titan_quest_harbinger_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3336/1574/files/overlord_light_novel_volume_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0198/6723/files/widigazojoketavotanim.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_off00004aec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AEC 5624 bytes
SHA-256: c34a96e347af038155287b9b5e3e824860b07eb5b134c2755eab1023412f6b0b
font_01_sfnt_off00005df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF8 10180 bytes
SHA-256: 6502099066ec0202a319beb1c82915b32b429bdefe07fa6bce9268effdf33567

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