Malicious PDF — malware analysis report

Static analysis result for SHA-256 79d499495e05e2b3…

MALICIOUS

PDF

34.1 KB Created: 2020-08-13 06:40:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af2cf6f21558a708be8e32bbe0821350 SHA-1: bf9615c7bbff76fa50e5b7e086155a95aa6827ce SHA-256: 79d499495e05e2b3d50dac7b45fa06900219c80f396284f797cea0d53306a334
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and appears to be a lure for educational content. The presence of many links to external PDFs, some benign and some unknown, suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites.

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=haryana+gk+by+babita+mam+pdf In PDF document text
    • http://dirowedu.markchristophergarrett.com/uploads/1/3/2/6/132682883/negegezemiv.pdfIn PDF document text
    • http://files.lotusliondesign.com/uploads/1/3/1/4/131407530/6797100.pdfIn PDF document text
    • http://files.nicolemilette.com/uploads/1/3/1/8/131856108/1334914.pdfIn PDF document text
    • http://files.maltafpd.com/uploads/1/3/1/4/131455463/3d7c0.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/1/0439/9936/3222/files/upsc_syllabus_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4519/0821/files/wugop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1386/4604/files/birukizuzojuwigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6104/1559/files/no_other_women_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5283/4711/files/vilagajut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9455/7347/files/botod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7095/5424/files/centrifugal_pumps_design_and_application_lobanoff.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/zilujugomutojubekebud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/60818254356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0591/0933/files/69500404146.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46C7 5420 bytes
SHA-256: 21d6a1ca099aa80c8f66ce3917677f38789e98e26271788d2ac9704d30e2989d
font_01_sfnt_off00005925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5925 10160 bytes
SHA-256: 868c9de7f12bfd49a3fa51f73a077489d3afd557b39f790c894f50898da30414

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