Malicious PDF — malware analysis report

Static analysis result for SHA-256 0527fbe6fa060a0e…

MALICIOUS

PDF

49.9 KB Created: 2020-08-20 14:13:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d8b2115aeb6429ff276eacf609817f7 SHA-1: ca0b1944c0db2b7c3fbef04e9b804f36cd453ed0 SHA-256: 0527fbe6fa060a0ef8a0902e0e086429740cf0f424b827d2944a0a7a2e40d013
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, indicating a phishing or scam attempt to redirect users to malicious content. The ML classifier strongly supports the malicious verdict.

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=understanding+capital+markets+pdf In PDF document text
    • http://jaluje.collegefootballtoday.org/uploads/1/3/1/6/131606066/xuwesodinududod-rexakodegep-riworaget.pdfIn PDF document text
    • http://files.hajarswell.org/uploads/1/3/1/4/131437363/1bcb0d1c7f122.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/1/0431/4251/2802/files/rukosedezone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4259/2152/files/deguzediperesuwijejagok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4024/1829/files/bmw_x3_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/zelogusaxidub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0563/9836/files/zuzuxedazif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6774/files/kefesujalomigimuzifaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/99617707027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/ubuntu_11._04_32_bit_iso_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5860/9819/files/65732397412.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_off000077cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CD 5208 bytes
SHA-256: 96e9de38421487d925db6e2654f8d2e7edea68887c7355b4a1280f4aabab9c1c
font_01_sfnt_off00008968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8968 10320 bytes
SHA-256: 68b5abae38d7caddf2fb0779316e134d9914c0ffdaba88c28c3b052f4cc6e7f7
font_02_sfnt_off0000acc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACC2 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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