Malicious PDF — malware analysis report

Static analysis result for SHA-256 028ab51272745e03…

MALICIOUS

PDF

55.0 KB Created: 2020-08-28 03:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0509ac04df84de321c527571db5a27c2 SHA-1: ae72c862a9d97de6f20edd97a9d83f303447de3a SHA-256: 028ab51272745e03c69513ba47b53c7c7023023064f5115bdcb8f036c0192a94
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=200+pounds+beauty+english+subtitle. Another heuristic identified a link farm of external PDFs, with the first URL being https://cdn.shopify.com/s/files/1/0431/1220/2389/files/ginuxob.pdf. The document body contains garbled text but includes the primary redirector URL, suggesting a lure for users to click on malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=200+pounds+beauty+english+subtitle In PDF document text
    • http://files.thelostblonde.com/uploads/1/3/2/6/132682076/d613cf6f735.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/1/0431/1220/2389/files/ginuxob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/vuxazixuwuxagowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1582/2747/files/cursive_writing_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/32022634502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2167/2341/files/27242677996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2664/4125/files/bdd_story_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39806276645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/7783/7476/files/analog_clock_widget_for_windows_xp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7022/5574/files/lozulo.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

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004963.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4963 7608 bytes
SHA-256: c0fcc41018fb83f0b45b3f5a55f777522ef4dd2e7cd5b68d0eaa66f41ab9bc19
font_01_sfnt_off0000637b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637B 5428 bytes
SHA-256: 38403409880d5a102a2593835bae644aa365202893da424917c8caa0b9c9705c
font_02_sfnt_off000075d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D4 2224 bytes
SHA-256: 5c304569b23ed276af9751cf601dbe5a07a83b6c82ee546a5f29cef570308721
font_03_sfnt_off00007ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF3 13340 bytes
SHA-256: fc8ab6b6b04f0f9c31dea31217623ab879a9591d01901ba1474bdd5a520b15fb
font_04_sfnt_off0000aa98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA98 16344 bytes
SHA-256: ed45a24507f18daeaf6b6e9cac20235e9e43bed88bc2d44b7621eff085e31190
font_05_sfnt_off0000c010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC010 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f