Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d304f0330c4a4a4…

MALICIOUS

PDF

41.5 KB Created: 2020-08-23 04:33:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4670b58250af83414960a118dd7cd437 SHA-1: fd544b44930cd24e9e3e08ec0f889d6642669ff6 SHA-256: 3d304f0330c4a4a46c6f74784f68bc5c4bb6238d1ad8aa42d76c1244f1b2f5b8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.com/pify?keyword=bahria+college+karsaz+admission+form+2018`. The document body also contains this URL, suggesting it is the primary lure. The PDF also contains a mass external link farm, with many links pointing to Shopify-hosted PDFs, indicating a potential SEO poisoning or link farm tactic to distribute malicious content. The presence of a malicious redirector and a link farm suggests the document is designed to lead users 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.com/pify?keyword=bahria+college+karsaz+admission+form+2018 In PDF document text
    • http://files.leggolf.com/uploads/1/3/1/8/131857679/pewivij.pdfIn PDF document text
    • http://juramodin.shrevewoodpta.org/uploads/1/3/0/7/130739723/1488054.pdfIn PDF document text
    • http://files.throughthefirellc.com/uploads/1/3/2/6/132681749/towakorud.pdfIn PDF document text
    • http://dijoxo.heads-high.com/uploads/1/3/1/1/131164574/4688097.pdfIn PDF document text
    • http://files.amrikbetty-coaching.co.uk/uploads/1/3/1/4/131452922/474ccc.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/1/0436/1145/5645/files/centrifuge_machine_principle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7728/6553/files/platform_7_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6108/4322/files/81008124525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/nanepofotoxusem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1034/files/juvorabopatabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2635/7152/files/usps_form_1583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/nibivogaropopow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/sozutikudisimalitore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9801/3857/files/maplestory_2019_reboot_training_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8988/files/din_en_iso_9001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2658/6527/files/xikarafazoropisoxufopuwum.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 2

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_off0000617d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617D 6120 bytes
SHA-256: c293be7bf8d7c92852abcffcbee27b690b849b7102ab2a62b48b1ac1212d892a
font_01_sfnt_off00007635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7635 10196 bytes
SHA-256: 697a9b864d3c7c66122ba024c5e995f9570e45d9b4d82bbd6bca3439f7282c77

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