Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7ac8476da511458…

MALICIOUS

PDF

47.7 KB Created: 2020-08-16 17:42:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 981550da83d24a7f9b7adae9b5f32878 SHA-1: 565902e229600b3cb4dbf6e03ebbcec7bdc0279c SHA-256: f7ac8476da511458511da5835358bc9691d272356aebc7d195cd8b83182572e7
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting a link farm or SEO poisoning attempt. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=bestwap+new+song++2019', is identified as a malicious redirector. The document body contains garbled text but includes the same malicious URL, reinforcing its likely use in a phishing or malware distribution scheme.

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=bestwap+new+song++2019 In PDF document text
    • http://mojed.georgetownenvironmentalhistory.org/uploads/1/3/1/4/131406343/3239fd6c7.pdfIn PDF document text
    • http://xorupujon.richardsonsafedriving.com/uploads/1/3/1/3/131383309/ce745.pdfIn PDF document text
    • http://monozi.nlpandmbitcoach.training/uploads/1/3/1/3/131398020/mebuzemapawow-jewerabosax-wenegosinigovad.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/1/0432/2433/4498/files/kipusidexigonanesep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0278/4936/files/seran_pandiyan_songs_free_starmusiq.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/nursery_and_primary_school_business_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/74693078163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/nimajosilusebanodeloxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/97665120230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1611/files/9060904473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8386/6018/files/2958712794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3780/8024/files/xudasomirike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8091/6893/files/fingerprint_based_attendance_system_using_arduino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/57956332080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3964/files/60581221834.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 4

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_off000071af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AF 5480 bytes
SHA-256: 50e8c55f0d804d72d77e42d21ef9003d8e10e08b446f52dc99a0f34c069cf323
font_01_sfnt_off00008491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8491 14332 bytes
SHA-256: 188536328426601587622e42a41e676b6c52ade657d65688348faacf83e7e2fc

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