Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f30b3f2848ea867…

MALICIOUS

PDF

52.1 KB Created: 2020-08-24 20:58:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4179e9c8214afee8418e9678d3b524d SHA-1: 9f3891cb590b1c4d7684cadbc877b4b63b2ba8ba SHA-256: 3f30b3f2848ea8671387e7474d172180f042743f0edf49f7397e648202aa0b5d
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The primary malicious URL, 'https://ttraff.cc/pify?keyword=best+antivirus+software+free++for+laptop', is designed to lure users by promising antivirus software information. The document body, though heavily obfuscated, contains references to this lure and other embedded URLs, suggesting a coordinated effort to drive traffic to malicious sites. The ML classifier also strongly flagged this PDF as malicious.

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=best+antivirus+software+free++for+laptop In PDF document text
    • http://files.bestcprseattle.com/uploads/1/3/2/3/132302859/4922287.pdfIn PDF document text
    • http://files.haptotherapiekoningsweg.nl/uploads/1/3/0/7/130738850/falotiver-joruxapobegum-gunixodow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3048/5912/files/bijotuxulesukena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7446/7478/files/oxford_dictionary_english_to_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2402/1664/files/budget_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7786/9476/files/fotav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/82133168239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/phonics_flashcards_for_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4138/2560/files/tumuvewuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/central_cabinet_ministers_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4555/2290/files/babemimew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8513/6021/files/48705175093.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F81 4976 bytes
SHA-256: d308f12c1d2439b29c711b727572b05b56cc95f743a37cad5223c849e5e394ac
font_01_sfnt_off00009095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9095 10704 bytes
SHA-256: 67b817ba3479efc25e13af9c565f66b9e924a73e56ac87faf41d43858d3e580f
font_02_sfnt_off0000b515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB515 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.