Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f62a8d3d38bde69…

MALICIOUS

PDF

41.1 KB Created: 2020-08-20 09:46:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b65f8e1771f582f5273282efd2278c59 SHA-1: 89f35f9532d02e0315dcf3e64cf610dff3b06944 SHA-256: 0f62a8d3d38bde69660c1e7d8b64737040f108c3f63e3ef8b7ef53733b52b1df
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt disguised as a video download. The ML classifier strongly flagged this PDF as malicious. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed 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.ru/pify?keyword=biryani+hd+making+video+songs In PDF document text
    • http://files.christopherscottmurillo.com/uploads/1/3/1/6/131637043/39cea656fc040.pdfIn PDF document text
    • http://lirewalan.stjosephsballymun.com/uploads/1/3/1/4/131438610/lofulur_tupuvuxulilosi_nijijupizeb_warigamaka.pdfIn PDF document text
    • http://fagore.chicagocitylimits.com/uploads/1/3/1/3/131383483/guviwijome-dunetebis-saxafuxotukimag.pdfIn PDF document text
    • http://xuzenup.runninsranch.com/uploads/1/3/1/4/131437626/wikerepoviravabik.pdfIn PDF document text
    • http://files.iagoarts.com/uploads/1/3/1/3/131381802/5c3a6df43156689.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/1/0432/6581/8789/files/short_film_the_double_helix_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7539/5993/files/how_to_summon_the_ender_dragon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8937/1029/files/78596802630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3011/7526/files/77296072316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2274/4741/files/68974770079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3855/3765/files/42104848560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1663/4016/files/tcu_guide_book_2019_20_for_diploma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2115/files/13035687962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7162/6652/files/lujeguga.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_off0000638c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638C 5484 bytes
SHA-256: 71dc78553c782a6695342765f8f333bafd4561e0ba52c906a1f6cc65de82c5b2
font_01_sfnt_off00007607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7607 9784 bytes
SHA-256: d33e24c18651b4179ef6c1ba0b6bbe55a28aecfc86f9e59f0a2babf49180086e

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