Malicious PDF — malware analysis report

Static analysis result for SHA-256 968e70465e20cc37…

MALICIOUS

PDF

54.3 KB Created: 2020-08-03 19:24:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 106022084239993aa982cab04ee2e203 SHA-1: ccd131e31fccbd942172499c29e7a9dbc4516eef SHA-256: 968e70465e20cc371d48bfd379332242d6d976ee88cf4ed1aeb963f6c270ac90
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=hypertension+guidelines+2020+pdf+%25E0%25B9%2584%25E0%25B8%2597%25E0%25B8%25A2`. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The ML classifier also flagged this PDF with high confidence.

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=hypertension+guidelines+2020+pdf+%25E0%25B9%2584%25E0%25B8%2597%25E0%25B8%25A2 In PDF document text
    • http://files.johnsonhoopbuildings.com/uploads/1/3/0/8/130814205/9245474.pdfIn PDF document text
    • http://files.northoftime.com/uploads/1/3/1/4/131453902/154353dd.pdfIn PDF document text
    • http://files.theblossomtree.org/uploads/1/3/0/8/130813489/jofime.pdfIn PDF document text
    • http://files.louiseexplores.co.uk/uploads/1/3/0/8/130814189/bonutila-bumobavadobu-tinokeza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/32734659077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/gimuzeximedofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/minecraft_gta_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/temosidanutezeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/41929019080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8136/6693/files/15419960064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3508/2402/files/30378633510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1514/2551/files/85390329796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/23627009661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6502/4412/files/82530232352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/gogewo.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF2 5336 bytes
SHA-256: 6009349ae085b5389dc009afd473347a5e24fad435b65694212073616c1aa98b
font_01_sfnt_off00008133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8133 6228 bytes
SHA-256: b882c44c4179b1494a3ffea3713f3e10acaee1f866a4fcf474685b622714bba7
font_02_sfnt_off0000915d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x915D 2092 bytes
SHA-256: 78e94e2e47178245ca437e301e19f50dc99845ecc02da2ba30fe2b1e34051cc2
font_03_sfnt_off00009b02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B02 14928 bytes
SHA-256: aa29cade570322f24004977090986a23d1b854670d3c697f4d33950c2b8271a8