Malicious PDF — malware analysis report

Static analysis result for SHA-256 c750681015ce842c…

MALICIOUS

PDF

52.3 KB Created: 2020-08-23 22:32:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02380205e8d6b309f704b0dbb5d38423 SHA-1: 03a010eb2e684d11963de9c356952d46bcaf04ec SHA-256: c750681015ce842c1672ce0e75e8e11fac49dd1a99e2107b93a32c465e02f993
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users with the promise of free movie apps. The document body, though heavily obfuscated, also contains this URL. The presence of numerous other PDF links, many hosted on compromised-looking domains, suggests a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier also strongly indicated maliciousness.

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=best+free+movie+apps+android+2019 In PDF document text
    • http://files.camilleplatt.com/uploads/1/3/0/7/130775859/92acba88b7ac37d.pdfIn PDF document text
    • http://gatajik.somethingbymelanie.com/uploads/1/3/1/4/131408899/8426461.pdfIn PDF document text
    • http://files.chrishhphotography.com/uploads/1/3/1/0/131070483/nikis_zogejo_woxobol_dixom.pdfIn PDF document text
    • http://puwaru.uufellowship.org/uploads/1/3/1/3/131379578/d0891376caab1.pdfIn PDF document text
    • http://neduz.ericahitzmanart.com/uploads/1/3/1/4/131482803/zatotigarovubizo.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/1/0431/8245/7000/files/nefebetonejusunagalosizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5555/2414/files/taxonomic_categories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/a_level_economics_revision.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5399/6442/files/nitrogeno_caracteristicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9347/3947/files/93876455207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6125/6091/files/tosodafefavosofot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9200/0406/files/rokixofegupikutubizasixud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/challenging_calculus_problems_with_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2014/7112/files/31515291199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5362/8062/files/zilosogivivamebugexivun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1863/files/85499613945.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7D 5536 bytes
SHA-256: 09650abf5c76c68d7562e2aa5a6750fd4fa7e112d763d0d66542055023da0153
font_01_sfnt_off00009238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9238 10364 bytes
SHA-256: dfb31873331522d831622a36402985daadcee0bdba48c73d8effa98f136f7933
font_02_sfnt_off0000b5c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5C1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3