Malicious PDF — malware analysis report

Static analysis result for SHA-256 6151acdb3bd46ae5…

MALICIOUS

PDF

41.2 KB Created: 2020-08-02 08:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a8533684b352a8e3fb64342c078fc0c SHA-1: 8c123c2edea31d7c9a0b78adf8f7dc8663ec3bd7 SHA-256: 6151acdb3bd46ae52d89dac25492062ba806f3fb0eb4e4aab3c55599e692271b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains a lure related to a 'Star Wars avatar creator' and the malicious redirector URL. This suggests a phishing or malware distribution campaign using a link farm to obscure the final destination.

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=star+wars+avatar+creator In PDF document text
    • http://files.floweredconcrete.net/uploads/1/3/0/7/130775050/pukuretatuj.pdfIn PDF document text
    • http://files.danielcont.com/uploads/1/3/1/4/131438167/pibunebok_tatudotolu_dinugito.pdfIn PDF document text
    • http://files.westwoodhillsah.com/uploads/1/3/1/6/131636625/dofukotoza.pdfIn PDF document text
    • http://files.shopragjunkie.com/uploads/1/3/1/3/131382470/3724159.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/1/0437/9095/8749/files/61965524912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3879/2085/files/98838979422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6991/4782/files/32673933121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/bolutiwas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/dekale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4492/files/febexoruwolupoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0686/8131/files/fojatajopivakuzikobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/kabifupitozokaravuxeleded.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/71044865555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6430/3522/files/80343781156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0214/8510/files/gupokazixebejuburivux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/14318291029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/death_knight_pvp_6._2.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_off00006491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6491 5016 bytes
SHA-256: 5254332f86f66aee17c3e462a955838a2d0e1ab57d19f6581e8cc9fe56fd4709
font_01_sfnt_off000075c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C8 10052 bytes
SHA-256: 0da555151d79783b45e6352c546886861bba6e379b094ffcdcd2415d7b0ebd10

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