Malicious PDF — malware analysis report

Static analysis result for SHA-256 25eeb1c4a531fd31…

MALICIOUS

PDF

48.0 KB Created: 2020-08-27 19:25:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d1052e095d7c78606be01af8c970046 SHA-1: 78496fa59fc874437fa9cc39ae0839832349472f SHA-256: 25eeb1c4a531fd31509a2ce137b4810f824bffd45c677a3d95cbdfdeecf33e5a
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 a redirector service known to host malicious content. The document body, though partially corrupted, includes a URL that is also flagged as a malicious redirector. This indicates a likely attempt to drive traffic to malicious sites, potentially for phishing or malware distribution.

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=hermes+scarf+tying+guide+pdf In PDF document text
    • http://files.tlhomeanddesign.com/uploads/1/3/0/8/130874240/dilusolipago.pdfIn PDF document text
    • http://files.dabbleabout.com/uploads/1/3/0/7/130738639/0ee7b22a09a221.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/1/0438/9273/6155/files/blackjack_online_game_free_no.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/84477954511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/lagrande_oregon_weather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/xejimavutun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1522/files/59921168815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3556/4949/files/86682557717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/15839570220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0271/4536/files/curso_completo_de_apicultura_george_layens.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7278/1477/files/wagozudibujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2746/3324/files/95038608704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4074/1275/files/romutamuzididotagazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/soxolujavofuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0856/files/medokogasozurikomukizef.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 2

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_off00006e98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E98 5280 bytes
SHA-256: c1627ef73ed7f3a346573cb2f7041bbfbe1d7d38ec6aed5e412829e31d062056
font_01_sfnt_off00008073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8073 10848 bytes
SHA-256: 1dd88207e9f47485ab609d2a7b3ce7674cb38916e138116107684096f8017dab
font_02_sfnt_off0000a523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA523 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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