Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7c195d228d59b6e…

MALICIOUS

PDF

32.0 KB Created: 2020-08-10 09:34:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f625434dbd01a7dfa9b3b58e65a6395d SHA-1: a70244b8b6187a7595b9529833f81a9fa0ea01ae SHA-256: b7c195d228d59b6e32e6cc120ee2cee2ff8d240de85db5996a9a705c3019bdcc
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=samsung+ac+catalogue+pdf', is designed to lure users by impersonating a Samsung catalogue. The presence of numerous other PDF links, many pointing to Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. The ML classifier also strongly indicated maliciousness.

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=samsung+ac+catalogue+pdf In PDF document text
    • http://files.abnist.com/uploads/1/3/1/8/131871786/vuvasapilalada-fasisipepujipir-mumeke-xofovudu.pdfIn PDF document text
    • http://vagisap.qldenergyexhibitioncentre.com/uploads/1/3/1/4/131453177/1561830.pdfIn PDF document text
    • http://gubiba.millpro.org/uploads/1/3/2/8/132814930/3592294.pdfIn PDF document text
    • http://files.balloons-lit-journal.com/uploads/1/3/1/4/131437725/dimavizudowad.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/1/0448/4333/5837/files/google_play_brand_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5499/files/the_beatles_piano_songbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8912/5791/files/arrow_s05e23_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/natanijatenotizixekula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/72810231364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5744/files/65203510931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/3164762653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/24093173252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4196/2649/files/defonawer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5560/4134/files/gutowinilit.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_off0000420e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x420E 5480 bytes
SHA-256: 7eeef9c9f41a98dfb4b29636d3b2449b2f7aea388c7b3ceeaf250ef618b7b26f
font_01_sfnt_off000054a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54A9 9092 bytes
SHA-256: 1f770b789467faeb3f6bd035a24f4df0348c3f523f3e780347db0e192636d002

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