Malicious PDF — malware analysis report

Static analysis result for SHA-256 642fa4d6fa9c5b1b…

MALICIOUS

PDF

45.5 KB Created: 2020-08-23 19:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 20981f5be99275bbc0a57eafbc01bc2e SHA-1: e169066f9e27c2f3df895f1ae0a68075c63e99e6 SHA-256: 642fa4d6fa9c5b1bea0707273c871164b81695a4a108f70ae1e49e1de29ec05d
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, masquerading as a movie download. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a link farm or SEO poisoning attempt to drive traffic to malicious content. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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=ajay+devgan+movie+platform+hd+video In PDF document text
    • http://miguke.passagesandpathways.com/uploads/1/3/1/3/131381679/fuxebugot.pdfIn PDF document text
    • http://files.leah-drake.studio/uploads/1/3/1/0/131070089/tajujokinutunul.pdfIn PDF document text
    • http://nobezan.royalqueendom.com/uploads/1/3/1/4/131453512/401ae3b2dda217.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/1/0436/8482/3205/files/pojevisesubasizekukoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/60299516550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9481/7445/files/17178373367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0485/3406/files/ashrae_handbook_fundamentals_1997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7373/9675/files/aula_anemia_falciforme_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4325/8522/files/41365694872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/60622803591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/aakasam_lona_oh_baby_video_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9066/3832/files/xobisagigalogowiteno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98629167596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/70851069057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6783/4517/files/blitzscaling_reid_hoffman_download.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 5

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_off00007238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7238 5504 bytes
SHA-256: bd1ff12b9878e4f929137eabd86b91ce2b5bd565058379a63f32859d9da80422
font_01_sfnt_off000084e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E0 10700 bytes
SHA-256: 9b2750b15ad7f5c2a052de43dcab1ad6885d4a2e8e74a522a423cca71b515c5f

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