Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4b15ac2caa16808…

MALICIOUS

PDF

49.0 KB Created: 2020-07-29 20:44:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2eaf62ade7be07a8c5e8d50606b0e3f SHA-1: e50f168706cde4d10caf0204edaab174f1facf60 SHA-256: f4b15ac2caa168088489ed4654dff8c6d89aab8cd0e2050bf7cceaa017841d1c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, suggests a lure related to 'Marina Abramovic book pdf'. The presence of numerous external links, as indicated by PDF_SEO_LINK_FARM, further supports a malicious intent to drive traffic to potentially harmful sites. The ML_NYX_PDF_MALICIOUS heuristic strongly supports the malicious classification.

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=marina+abramovic+book+pdf In PDF document text
    • http://files.janeshannonphotography.com/uploads/1/3/1/3/131383544/1916874.pdfIn PDF document text
    • http://files.springdalesva.com/uploads/1/3/1/4/131408170/sifasogot.pdfIn PDF document text
    • http://files.tomsbeachhouserentals.com/uploads/1/3/1/3/131381078/4ce810163bffc.pdfIn PDF document text
    • http://files.bad-media.com/uploads/1/3/0/7/130775958/janufenazola_fijaf_sugexigodaxo_jepos.pdfIn PDF document text
    • http://files.inyourskivvies.com/uploads/1/3/1/1/131164198/7712da.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/1/0440/7807/1960/files/46953746706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4570/7166/files/2121800584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/84526643930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1650/0886/files/zukoweniruligekimisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/posoriwifokewibig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1966/3522/files/bifineneruzomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0602/5128/files/xobebuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1438/1980/files/fanazejemefitan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/salelixakibikiziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/nibudodaziteruvelesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8729/7696/files/9493094050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1666/6786/files/feketenevaludemugipubif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7730/4484/files/xodutoxujik.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 8

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_off0000816b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x816B 4952 bytes
SHA-256: ae68ffaba36b167bb3305a458c44478e2f901b70696d8a81a1fd9eab53522e9f
font_01_sfnt_off0000921f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x921F 10576 bytes
SHA-256: 7bcd5d794457718f1662b3e643415c24987427f964d8f21c14ceb37b2ad96e8d

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