Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c573381fe1eb5f2…

MALICIOUS

PDF

47.9 KB Created: 2020-08-21 15:06:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b15dfa8193ced3d4c37d34fe9bb866a SHA-1: 0fc4e6c2dda0a801f9dcf3436b4cd4e03da253cf SHA-256: 4c573381fe1eb5f2b12d7f479341ab38ed9ea23b256d4c32b3f2446d5462ecae
194 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains text referencing a movie title and the malicious URL. This indicates a social engineering lure to trick users into visiting a malicious site, likely for further exploitation or malware delivery.

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=bahadur+2014+full+movie+kannada In PDF document text
    • http://files.carpetcleanersnetwork.com/uploads/1/3/1/8/131856040/rebaxabibas.pdfIn PDF document text
    • http://files.hitchhouseusa.com/uploads/1/3/2/7/132710627/4473071.pdfIn PDF document text
    • http://xujep.babycarriersmalta.com/uploads/1/3/1/1/131163908/nilow_polibabalusod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0922/0501/files/dekufurelowebokigav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5396/4712/files/berwickshire_high_school_inspection_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6640/6552/files/gaselalobutipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2441/4882/files/mulojorezilakufuziluxopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6769/9353/files/kureze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/kedimezedizomavufuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5503/0170/files/jinja2_ansible_tutorial.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE5 5556 bytes
SHA-256: ba8e628dab434b1c3674ad09b6eb3d53aaba64fc9b982f863d9ced09b3f911f0
font_01_sfnt_off00006eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB6 2736 bytes
SHA-256: 0e740c61756979a8dabef67be94caa2cb9cfb2f5bb5e5980f923b019063a4bbe
font_02_sfnt_off00007a8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8F 10080 bytes
SHA-256: c3906cdc42f4495abd1113b9751566a0a88c1b0a4cf386475604d3d115919f3e
font_03_sfnt_off00009d60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D60 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8

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