Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c0e30a14f1a2b45…

MALICIOUS

PDF

37.4 KB Created: 2020-08-14 21:29:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4988f64005f0632a3597ded1ea66ecd0 SHA-1: ea1db76cfb4c14805ce96fa549e829eb63bd56c9 SHA-256: 1c0e30a14f1a2b451e5f12bf0e12f36d4aa17e84e4bc2a26854b22a2640991ad
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Adobe acrobat reader dc gratis italiano', suggesting a lure for a fake software download. The primary malicious IOC is the redirector URL, which is likely used to host or chain to further malicious content.

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=adobe+acrobat+reader+dc++gratis+italiano In PDF document text
    • http://files.uniquestationers.com/uploads/1/3/2/8/132814433/xolojabuxarose.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/1/0434/5085/9670/files/qcm_atomistique_paces.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3105/1943/files/dosuxilewadipekoxosof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/90651515171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1748/4957/files/mesurajibakekudajope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/62212455145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5062/3385/files/pavunid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8024/4643/files/acumed_distal_radius.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/56105624133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7482/7941/files/nilipuvapezuwi.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_off0000546f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x546F 5236 bytes
SHA-256: 10103bae02a2c33df6d152d38b388f0c727d7a01d57490214b26d66af93ad63c
font_01_sfnt_off00006647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6647 10356 bytes
SHA-256: e335c9445210da89b9010a4353234f47eea9428c104763a60e5fd613397bdfba

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