Malicious PDF — malware analysis report

Static analysis result for SHA-256 9226f4fba995af33…

MALICIOUS

PDF

40.5 KB Created: 2020-08-14 20:59:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6f432751294b39e3af5f295aa26f1fd SHA-1: 35f1c771b8e7cb6edaf6803c5ebe061c0730ad26 SHA-256: 9226f4fba995af33761f28aeb586a9e35b6bcdc5c2f872fe549c7bbb49b50b90
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, many of which point to Shopify domains hosting benign files, but one critical URL redirects to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the primary malicious URL and a benign-looking URL, suggesting a lure to disguise the malicious 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.com/wb?keyword=bible%20sermon%20outlines%20pdf In PDF document text
    • http://files.apentertainment607.com/uploads/1/3/0/8/130873718/kuzotukuwiku.pdfIn PDF document text
    • http://files.yachtfab.com/uploads/1/3/0/7/130738748/6048314.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/1/0436/5120/3225/files/basic_calculus_grade_11_learner_s_module.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/53358965594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1538/6774/files/british_council_ielts_practice_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9956/9829/files/90600675843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/gta_5_save.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5567/6580/files/bsc_computer_science_bharathiar_university_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/borigajudij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/catalogo_de_cactus_y_suculentas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0642/6266/files/cursive_alphabet_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31321710084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/89937905393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1317/files/19980402410.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 3

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_off00006100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6100 5168 bytes
SHA-256: a68a97a6dc2f5aa2ffa68c8b356429676a3e5defea80ea1bdf95fd64904c2b8d
font_01_sfnt_off00007271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7271 10240 bytes
SHA-256: 0dbb6d1248e9a3ddf3aeca5791f1517d42aa60785439e34c7ffbf0044ef90547

Open this report in the interactive analyzer, or submit your own file for analysis.