Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f8fdfc3ff8255d3…

MALICIOUS

PDF

66.8 KB Created: 2020-08-18 19:43:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a057c34184b6c70788a61b47d210021 SHA-1: da00c5e635ef64c37ddd27fa782c27c565273ac6 SHA-256: 0f8fdfc3ff8255d3ae7cfd397e1861b8d788f72f14b1116dd6044b8e770fa026
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are part of an SEO link farm designed to distribute malicious content. The primary redirector URL, 'https://ttraff.cc/pify?keyword=oswaal+guide+for+class+10+english', is flagged as malicious and likely serves as a lure for a phishing or malware download. The ML classifier strongly supports the malicious nature of this PDF.

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=oswaal+guide+for+class+10+english In PDF document text
    • http://files.savemetislighthouse.org/uploads/1/3/1/0/131069789/vemopegeju.pdfIn PDF document text
    • http://files.conwayfeedandgarden.com/uploads/1/3/0/7/130739155/45ec9cfe8f.pdfIn PDF document text
    • http://zagidi.archivedsanfrancisco.com/uploads/1/3/1/0/131070493/1248407.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/1/0432/0549/2904/files/97597648409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1290/5370/files/43117881404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/92168133711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/28403683955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7453/8920/files/jahiem_the_makings_of_a_man.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6992/2714/files/barivamuwut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9265/4745/files/34924011959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7607/3125/files/zuwupodazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3331/0870/files/sufalixak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/62864308506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4690/3709/files/39316079538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/buvadorofekiligo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA890 5596 bytes
SHA-256: 6cfd2496facd7e608c5456e58775b8f93ff1940e4c9a51264eac496327bdc792
font_01_sfnt_off0000bba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBA2 14028 bytes
SHA-256: 7d92ccd7a7cf4f4d1d0ad7ecd5e79c3d4fffae22d80265c7120cba43889afc57
font_02_sfnt_off0000e7a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7A4 16368 bytes
SHA-256: 552e926f59ef53231249b6015cc51882b512f7a40c6b17c25f707dc25a221893

Open this report in the interactive analyzer, or submit your own file for analysis.