Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c2a9c4e30dc4c25…

MALICIOUS

PDF

36.9 KB Created: 2020-08-27 16:40:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c10663a178696d7b37f92879a071a1e SHA-1: c1f109fbd139dfae9e6b508c5388c7706cfc2696 SHA-256: 0c2a9c4e30dc4c25bdef78edc1c91d877fb9343e98459162d9f2648eb0af6cbf
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector. The document body and heuristics indicate a link farm strategy, likely to disguise malicious content as legitimate downloads. The primary malicious URL is https://ttraff.com/pify?keyword=covering+islam+edward+said+pdf+free, which is used in a SEO-based lure.

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.com/pify?keyword=covering+islam+edward+said+pdf+free In PDF document text
    • http://files.judyzpiano.com/uploads/1/3/1/4/131406427/xelubajobojazutuma.pdfIn PDF document text
    • http://files.dandressler.com/uploads/1/3/0/7/130738596/2741966.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/1/0433/3545/0774/files/gipis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/95084362510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/lowes_easley_sc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/catalogo_placche_axolute_bticino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9449/8709/files/fun_halloween_worksheets_for_middle_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7614/7607/files/courier_final_draft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8258/7037/files/bookkeeping_vs_accounting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2857609843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2526/8889/files/36247905611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/7509998167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2079/5556/files/35849254675.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5222 5420 bytes
SHA-256: 16cdbeed247cc8416ff3d9e89f21e221ccebadc75f14eeca53c32a3cfcd93347
font_01_sfnt_off00006495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6495 10040 bytes
SHA-256: 3d78b0596ec0a8aa1a37aa1a142a6cd8d04e8b71f910807bffe931ae911def4d