Malicious PDF — malware analysis report

Static analysis result for SHA-256 375ac25b5bf75226…

MALICIOUS

PDF

46.3 KB Created: 2020-08-10 14:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ec396730c5bc50c953dcf4f9686d2b2 SHA-1: 1b6e41e7a262525cdea91387833715efcf58a659 SHA-256: 375ac25b5bf75226b0b4d762f5bb470ee16852f75d42f118435599786a5a3a6a
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains the URL 'https://ttraff.cc/pify?keyword=medicinal+plants+project+pdf', which is flagged as a malicious redirector. The presence of numerous external links, including those hosted on cdn.shopify.com and other file-sharing domains, suggests an attempt to create a link farm or distribute further malicious 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=medicinal+plants+project+pdf In PDF document text
    • http://files.aeinstructional.com/uploads/1/3/1/8/131872273/kamakijifofogole.pdfIn PDF document text
    • http://files.emeraldparkptsa.org/uploads/1/3/1/4/131407138/3757165.pdfIn PDF document text
    • http://files.physicsfox.com/uploads/1/3/0/7/130776573/05ed35cd60806c.pdfIn PDF document text
    • http://files.kvag.net/uploads/1/3/2/6/132682976/wutajinu.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/1/0432/8436/5476/files/batib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7124/2391/files/42333054902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6202/files/61955017780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8713/3860/files/meaning_of_absolute_advantage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/zibusiruvupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/cake_recipes_sinhala_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72645751706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4756/7003/files/all_spider_man_comics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7977/7945/files/reset_google_wifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64255738852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0741/files/9004090416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4645/1862/files/60019955913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0168/3865/files/72625211501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98012128422.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_off00006b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1E 5016 bytes
SHA-256: 1cb199980f029e72074592049fcf4c44fc88e17ce5f15fb0904e0bf844d7db22
font_01_sfnt_off00007c34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C34 9928 bytes
SHA-256: 7074a7e027f14d3ee3675d7b33795077cfd94fd9d04de61a122d7158c26ab65a
font_02_sfnt_off00009e2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E2B 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378