Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fb06da1fe816592…

MALICIOUS

PDF

40.7 KB Created: 2020-08-18 14:48:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4add4484beb4a0610b58283219aa6fbf SHA-1: 60133619ce5f904cf6964b2f9cdf8d60ab4c716d SHA-256: 7fb06da1fe816592111bcb4f3168e2a8a64dd4960d9452b330a7927f82b113a6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains text related to 'space wallpaper' and a URL that aligns with the redirector heuristic. The presence of multiple external PDF links suggests an attempt to create a link farm or distribute further malicious content, likely as part of a phishing or scam campaign.

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.com/pify?keyword=space+wallpaper+high+resolution+free In PDF document text
    • http://pakuk.stmaryssilverstream.org/uploads/1/3/1/8/131871674/lamuxakofov-nopetuwu-zaxojinulolo-zifitadipiluvi.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/1/0429/2821/0073/files/pofafimine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1340/5850/files/bakitejewasuputodidimapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0204/3288/files/velevadugovibixotavag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7231/3749/files/wopudemum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7878/6965/files/rusuguzofeneviziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/criminal_justice_system_in_the_philippines_reviewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8770/7812/files/12867395725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5761/4741/files/fulazuwovededasuzepipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9394/0641/files/4458837272.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 2

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_off00006125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6125 5472 bytes
SHA-256: 075703f765160418686455b9185c62613775bfb9c66b518c5dd8fbd1820f630d
font_01_sfnt_off000073cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CC 10100 bytes
SHA-256: a6399c7b61942af1e0572e075bb522c697994b7b8641ccc4bd95470e564c043a

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