Malicious PDF — malware analysis report

Static analysis result for SHA-256 152ce9d7b917c1b0…

MALICIOUS

PDF

62.6 KB Created: 2020-08-22 09:41:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72bb559d1faef806c9153b2b9028089e SHA-1: f6fe8644f438d38982088624367622b38a4e48de SHA-256: 152ce9d7b917c1b0dd602d1f63cd2fc12ffca835cec906a0e8dd4134f24462f7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM, indicating it leads to known malicious redirectors and is part of a link farm. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests the primary purpose is to redirect users to malicious content, likely for phishing or malware distribution.

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/pify?keyword=american+pie+5+fzmovies.+net In PDF document text
    • http://files.andycain.org/uploads/1/3/0/9/130968984/lelikiro_wibazatezu_delabepe_pajikonovefanox.pdfIn PDF document text
    • http://files.iopc.org/uploads/1/3/1/8/131856041/gatemudu_jukepuzevusiman_jibol_xonepevoxar.pdfIn PDF document text
    • http://nisemax.avian.dk/uploads/1/3/1/1/131163930/wanem.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/1/0431/6646/6216/files/rent_agreement_format_in_malayalam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1044/8795/files/nulejusupuzigobor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9759/1701/files/convert_xls_to_xlsx.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9244/3303/files/7_best_ad_blocker_apps_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8578/3455/files/33107688159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5710/9399/files/castrol_radicool_sf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3015/0300/files/90036697266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1695/3767/files/bekafakapukezuduza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6113/9861/files/synchronous_motor_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/42263856378.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 1

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_off0000ab75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB75 5384 bytes
SHA-256: 83934ed84034a47b72f70adff1d4b7fa905fb72f6ba131f51f2432cc6c1437c3
font_01_sfnt_off0000bdbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDBE 15392 bytes
SHA-256: d4611bcaa7374daf11ba3fa0bdcebaaf1b3a0df38314e2d7b76b767254963a3d

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