Malicious PDF — malware analysis report

Static analysis result for SHA-256 734fa7d85d099ca7…

MALICIOUS

PDF

60.5 KB Created: 2020-08-05 00:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a42ea98d53db77a8a40f6d79a294357 SHA-1: cf69f86d471cb58b3fc77c8bb2185063298ac3f3 SHA-256: 734fa7d85d099ca7637fff1f5341927ca44c73fc7634c18f9aab78c91c4c4105
194 Risk Score

Malware Insights

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

This PDF file contains numerous links to external resources, many of which are hosted on domains associated with SEO link farms and redirectors. The primary lure appears to be 'Bsc 1st sem books pdf', directing users to a malicious redirector URL. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or malicious download attempt, likely leveraging JavaScript for redirection.

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=bsc+1st+sem+books+pdf In PDF document text
    • http://vurovug.noelcustoms.shop/uploads/1/3/0/7/130738720/947f542f149235.pdfIn PDF document text
    • http://files.quadifyrc.com/uploads/1/3/1/8/131871705/jevokibekexaxowereb.pdfIn PDF document text
    • http://files.arogueidea.com/uploads/1/3/1/6/131637224/bujupazap.pdfIn PDF document text
    • http://files.adkstrings.com/uploads/1/3/2/6/132681452/6cae49c564e4e82.pdfIn PDF document text
    • http://jozuwoge.estherwayne.com/uploads/1/3/0/7/130775320/wokejunozumuruvupow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89965927340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6216/4644/files/wefamarizabufaretewexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7312/6052/files/jatagikuderebolubezixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7928/5401/files/22730829011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4151/3895/files/alanis_morissette_supposed_former_infatuation_junkie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xakisone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3464/7460/files/how_to_remove_emoji_from_text_php.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8735/4270/files/14262774438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/multiple_inheritance_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4152/9754/files/actuarial_valuation_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/engineering_chemistry_notes_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0506/6913/files/dalinoxirobirubidufoxezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5121/2200/files/lisote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9825/8088/files/letatugotal.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF4 5268 bytes
SHA-256: 44013cdcdb3cd59ff18ead6e6df27701d665e1157cb7e6cbad1a45af2d947e57
font_01_sfnt_off000091d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91D8 3204 bytes
SHA-256: 55635b50bad29c6b04cd9b4d5dd064b78be6c29eafc981c666da6fe4470a6799
font_02_sfnt_off00009ec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EC8 2576 bytes
SHA-256: 6979bd47582e1076a00d5472c1190b3af330e4342ab9b9f0dc7d58f6ae02f5fc
font_03_sfnt_off0000a9bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9BB 10764 bytes
SHA-256: dccb82e7be01f8b8b5f63972d43c7be8e2b337b0f92e6d67e7b11c2eafb97e88
font_04_sfnt_off0000ce78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE78 16260 bytes
SHA-256: aead5909105c2c91be994e936b990d4ad0f64aef1ebd7ea7814b21a3d287ff12

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