Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f79e6f58495e341…

MALICIOUS

PDF

44.8 KB Created: 2020-08-23 00:00:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d7ca3b9db1182d137cbf2432bf23c3b SHA-1: da3a58da558585111c1fdba1a966aec79babadd7 SHA-256: 0f79e6f58495e3416e7ca6e215d5d7826ea1f03bd32125b39a8ac5c968a0ce4c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to disguise a phishing or malware distribution lure as a free download. The presence of many links to external PDFs, some benign and some unknown, indicates a link farm strategy.

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.com/pify?keyword=arial+greek+bold+font In PDF document text
    • http://files.mizzellesstandardpoodles.com/uploads/1/3/1/1/131164067/228306.pdfIn PDF document text
    • http://kezol.tobymusgrave.com/uploads/1/3/1/3/131378816/xitafugumag.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/1/0439/2783/0696/files/dect_6._0_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7618/1398/files/download_ios_9._1_beta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4716/4840/files/music_maker_apk_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/4944/7587/files/makalah_liberalisme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/sedip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4125/0714/files/camicie_nere_uniforme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7236632937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/baxonubisonewijulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kikurum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/realtek_hd_audio_manager_latest_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/simple_past_form_of_arise.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D57 4880 bytes
SHA-256: 676d9126b9a6033b4e692e853f7fb9e002c451d13ad8e76af14aa9609d8acf57
font_01_sfnt_off00005df2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF2 11104 bytes
SHA-256: c5e397ec668ed6adee02a9455acb1451101e2f6de1733f417a507af7968da3c9
font_02_sfnt_off000082f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F7 16084 bytes
SHA-256: e8051d68498e63029d7c34361d406bcd46815681d18da0e8952f0660ee027cca
font_03_sfnt_off000097ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97AB 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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