Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ec6a3732a56f1bc…

MALICIOUS

PDF

42.3 KB Created: 2020-08-04 17:03:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74001e05a7c2d8551c07d99174e99b99 SHA-1: 54cb00d13176cab69537349d1d02aba6df74f825 SHA-256: 7ec6a3732a56f1bcd0c14ac8dd18eaaf7bd707c6db2ec4a89e81459813604db5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, which is indicative of a link farm or phishing lure. The primary redirector URL is associated with malicious activity. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, suggesting an attempt to trick users into downloading further content.

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=localized+and+delocalized+bonding+in+organic+chemistry+pdf In PDF document text
    • http://files.absolutealphacm.com/uploads/1/3/1/3/131380175/nataduxov.pdfIn PDF document text
    • http://files.lanecovetheatrecompany.com/uploads/1/3/2/6/132681851/banefegemijef.pdfIn PDF document text
    • http://files.totallyrendang.com/uploads/1/3/1/3/131383743/a45309e1.pdfIn PDF document text
    • http://files.jazoot.com/uploads/1/3/0/8/130814353/eec6622f10aa4e.pdfIn PDF document text
    • http://files.stitchesbylynsey.com/uploads/1/3/1/3/131381706/zadezima.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/1/0437/1903/2987/files/fipuzoxizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4095/4773/files/uky_edu_canvas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1304/5398/files/starbucks_beverage_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1751/8751/files/nixasapawalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/vidaxixitomopobigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5007/4269/files/widaxexabigubiximibew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9861/2636/files/52969587003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1222/7225/files/26177823083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/66612156312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4488/1059/files/rujiwomedekikakalowiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7956/5465/files/masunadadowiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9712/0151/files/dungeon_crawl_stone_soup_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0935/9517/files/93917727382.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_off00005893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5893 5592 bytes
SHA-256: 13b6ff658264b2e2b6a238a269424de30853a5073b7e544db8cdec26d8f4d280
font_01_sfnt_off00006b60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B60 9968 bytes
SHA-256: 7491c85ea34ce74e35cf393f353559187290840f047b3487ffd070173d130ed5
font_02_sfnt_off00008d77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D77 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333