Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c36751d33637bea…

MALICIOUS

PDF

39.8 KB Created: 2020-08-23 13:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 434d54ef463dfd04edfd1560432fbbca SHA-1: cc1394b84d89cf245c15e7c52eaa2a11a917af11 SHA-256: 1c36751d33637bea7faea5ec1ca4ff81bd456de349ab453db13921d37d0ef7e1
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'mac auto clicker free advanced' and includes the malicious redirector URL. This suggests the document is designed to lure users into clicking malicious links, potentially for SEO manipulation or to deliver further malware. No scripts were extracted from this sample.

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=mac+auto+clicker+free++advanced In PDF document text
    • http://mufujab.greatbooksgreatdeals.com/uploads/1/3/2/6/132681670/375a1d9e5ba.pdfIn PDF document text
    • http://files.daisychainkinsale.com/uploads/1/3/1/0/131069934/komezonugetebawum.pdfIn PDF document text
    • http://files.stdavidsdayschool.org/uploads/1/3/1/4/131483361/xetisenarexetax-fuzaxum-zugipakodajefa-kodenosutete.pdfIn PDF document text
    • http://files.hobbybanditusa.com/uploads/1/3/1/8/131871433/1395432.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/1/0432/3305/0779/files/shadowrun_hong_kong_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/8602/1543/files/esl_guided_reading_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7513/2824/files/sufepomoburosavazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3179/6629/files/sixth_grade_grammar_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3591/7464/files/89282555950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/vonaxif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7952/4759/files/dilodijikuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1139/8039/files/85065592913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/tasixokutagepiduvaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/36227784046.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 6

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_off00005e61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E61 4968 bytes
SHA-256: 0cd7e3bc61d913bdff66253a5d02bdbc78f6646f7f6afae8e946b2a097864fa8
font_01_sfnt_off00006f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F62 10164 bytes
SHA-256: ea65d3afad750425b49976edc9eb2d8ee5414376f5c37722a5fd1d5c2c1b2a03

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