Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5c5a7c0a62a7949…

MALICIOUS

PDF

45.0 KB Created: 2020-08-14 03:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ece28507c02d1686154717b1adbc402 SHA-1: 70a18d38329cf1561e4a5203469c5901d19f50c2 SHA-256: f5c5a7c0a62a794944981c187ef2e88187092328742c2ce5953cd71339d5cefa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a direct link to a redirector URL, disguised as a lure for free PS2 games. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM strongly indicate malicious intent. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the document's structure and embedded links point to a phishing or redirection attack.

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.ru/pify?keyword=ps2+games+iso+for+pc+free In PDF document text
    • http://files.bear-ysweetshoppe.com/uploads/1/3/0/7/130738806/8dbbc90edbc68.pdfIn PDF document text
    • http://files.lauragrillo.com/uploads/1/3/1/4/131453278/rezudepesij_kumijimerag.pdfIn PDF document text
    • http://files.pristoopcuratorial.com/uploads/1/3/1/4/131437005/7cede8d8d085.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/1/0430/6645/8265/files/48274832808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61238086127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1444/5465/files/devi_puranam_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4949/9289/files/wekabovabumepemotodozas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/butizeluviwag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9967/5040/files/89293931315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5199/9637/files/rebazigebetora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5253/8773/files/jrr_tolkien.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3508/0342/files/koxiguxakewokupepesem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/romajigef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3293/5574/files/29519132692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2085/2122/files/6683639245.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000654f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x654F 5036 bytes
SHA-256: 81d9d3a4b4e009024f60535d7940cba799a7351eede468c8a404671436d0b1a9
font_01_sfnt_off0000766f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766F 10056 bytes
SHA-256: 66e7656c60ad223bec16e3508c2e42d887b5ae2bc0bea335c44251b1e6bf270d
font_02_sfnt_off000098e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E2 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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