Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef6af29ac6aecef5…

MALICIOUS

PDF

49.0 KB Created: 2020-08-26 02:28:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5301bdd280b732f6c65114396ddc09c1 SHA-1: 1dc0243fe2b9e7d1190d74d47d131bd8f8673239 SHA-256: ef6af29ac6aecef55b99f43e0921105fe3da7661502bb3e604aaf1d6b38615b7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body itself is heavily obfuscated but contains the primary malicious URL. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO poisoning to drive traffic to malicious sites.

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=h%25C3%25BCk%25C3%25BCmet+kad%25C4%25B1n+1+indir+mobil In PDF document text
    • http://fiter.texasredbuddental.com/uploads/1/3/1/4/131453206/7791007.pdfIn PDF document text
    • http://files.pempickleball.com/uploads/1/3/1/6/131636843/xosizem-bupozojatolidu-nusodilifudeta-zotupiwivibemi.pdfIn PDF document text
    • http://files.whiteherondesign.com/uploads/1/3/0/7/130739564/213b105ff523685.pdfIn PDF document text
    • http://mogodaze.newthaiart.com/uploads/1/3/1/4/131454215/8653989.pdfIn PDF document text
    • http://ziten.eleftherianoslab.org/uploads/1/3/1/3/131383613/1572214.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/1/0430/5407/1957/files/the_sims_deluxe_addition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0569/6407/files/2008_saturn_vue_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2106/5640/files/berserk_anime_season_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/kewonabafejakepuxesur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0383/8615/files/88900164476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/8684/0743/files/agasobanuye_by_rocky_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9482/5376/files/naruto_shippuden_episode_english_subbed_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4631/2863/files/filmora_template_birthday.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/41956886475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/joxukeminadika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/26512552317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1098/2041/files/xozofaked.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6696 4952 bytes
SHA-256: 3dc849e93679dee2b3671d02401af0605af5925bdcb1a1053df96fb7fb436844
font_01_sfnt_off0000774d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774D 16488 bytes
SHA-256: 3a9d945154244ca033be0d2c13bf43149d13f72c4872f710c644b7fbf9862771
font_02_sfnt_off0000a701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA701 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361