Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f2ae4c9ec8d7072…

MALICIOUS

PDF

43.8 KB Created: 2020-08-05 06:54:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb035dc1b33507541a39bf031e05b702 SHA-1: d5920a660bedf95209e081de5e4844e552a958c9 SHA-256: 9f2ae4c9ec8d7072d93da9d89bda6b0840c6a2e8ab2ad8737662263dc9860516
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends

The PDF file was flagged by a machine learning classifier as malicious and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits a PDF link farm pattern, embedding a large number of external links, many of which point to potentially compromised Shopify domains or other unknown hosts. The document body, though heavily obfuscated, contains URLs that align with the observed malicious redirector and link farm behaviors.

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=bosque+tropical+perennifolio+pdf In PDF document text
    • http://files.seectimeout.net/uploads/1/3/1/8/131871622/jitabatas.pdfIn PDF document text
    • http://fofupolor.abcformepreschool.com/uploads/1/3/1/4/131407005/luduwilo-vevax.pdfIn PDF document text
    • http://files.nineacresfarm.com/uploads/1/3/0/7/130776366/nusijepaneli_wuvorebo_roted_bakudu.pdfIn PDF document text
    • http://files.littlequiltcreations.com/uploads/1/3/1/1/131164236/gugudatutasuke.pdfIn PDF document text
    • http://files.beyondthemasks.net/uploads/1/3/1/4/131438059/2190231.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/1/0433/0687/7080/files/mapitawaluzosamorexub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1891/0870/files/waxazujomifiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1786/1277/files/vivegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6304/9376/files/53965978102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5066/2053/files/zenazezazox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6248/4383/files/kiran_psychological_aptitude_test_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9798/0056/files/kavufinokiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7802/9213/files/brainwashing_the_science_of_thought_control_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9800/4899/files/46081249038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0271/4533/files/jivufudev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4606/7605/files/16235641286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5643/8165/files/susujibujalafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/hidradenitis_suppurativa_diet.pdfIn PDF document text
    • https://doi.org/10.21829/abm90.2010.299In 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ce5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE5 5324 bytes
SHA-256: 1d56ef58b51a3d329f2e681c05b9513cd2e8628c38def348d95b21f1aaf0cfb3
font_01_sfnt_off00007f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F10 10208 bytes
SHA-256: 7afaa7f5f6bee8123481a8dd9f1b01e8e21a1ba73fcf2044ec0c7f8b4434b1a0