Malicious PDF — malware analysis report

Static analysis result for SHA-256 92b5e1720e7a56cf…

MALICIOUS

PDF

51.6 KB Created: 2020-08-08 23:52:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf27b8e996d5dfdc267d3076b26d53d6 SHA-1: ed814985fb4bc37e5126980c951abffcd5c9e559 SHA-256: 92b5e1720e7a56cf2e3e299951935d744ed19efe2d4f06ea211c67367606b9a5
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL, 'https://ttraff.cc/wb?keyword=grammy%202019%20nominations%20pdf', is flagged as malicious. This suggests the document is designed to lead users to malicious content, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/wb?keyword=grammy%202019%20nominations%20pdf In PDF document text
    • http://files.erikahanneson.com/uploads/1/3/2/8/132816036/resiwade_tasokukum_pobijoseluzuza.pdfIn PDF document text
    • http://files.petervschaeffer.com/uploads/1/3/1/1/131164097/towerabudevuk_wakolu_logumalonug.pdfIn PDF document text
    • http://files.bookfabulous.com/uploads/1/3/1/0/131070754/87d6f09e7.pdfIn PDF document text
    • http://files.cicaclaim.com/uploads/1/3/0/8/130874544/golokoga.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/1/0451/6134/9269/files/ielts_speaking_task_2_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2760/3354/files/allahabad_high_court_aro_marks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sobobubujuwin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5809/2439/files/bejavutobefezifosegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7355/2040/files/83050476393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5956/0086/files/kojufajekafiwekaduzaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2420/3424/files/numalazemojujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/78199960654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3494/files/nupeloxetazuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/54799079792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/mezepali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/tariporokulevomutibot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xedatojif.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000673e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x673E 5772 bytes
SHA-256: e1077903e7a42824faf5600bebe0884bcdf2422e7bcecab775c103b1bd7ad3a1
font_01_sfnt_off00007ad2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD2 2744 bytes
SHA-256: dae0f12506c17deaa818396cb86411da2f7a72f10e575d6fda98e021880a3e82
font_02_sfnt_off0000867d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x867D 10868 bytes
SHA-256: 639a87f0677943ffc2708532bea9ed8bbdd0d2a4b9263a93404f465fd5cccab8
font_03_sfnt_off0000abc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABC0 16168 bytes
SHA-256: bcfecb9fde4b74e4a2b692e15caf305b2988a1cfe4c6386614002e38d35feb86