Malicious PDF — malware analysis report

Static analysis result for SHA-256 47b8e05e1a6e4528…

MALICIOUS

PDF

46.6 KB Created: 2020-08-18 23:40:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b798b054e2154802053ed8e560f74c86 SHA-1: 3b54766d269dcb08d8b24f1bb2c625e4d3b599a4 SHA-256: 47b8e05e1a6e452892d9928fbb9fa80895bb7faa0d6f6ab1682d5bc44768ea8e
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded URLs, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic indicates a direct link to a known malicious redirector at 'https://ttraff.com/pify?keyword=foolproof+academy+answers'. The ML classifier also strongly flagged this PDF as malicious. The document body contains text related to 'foolproof academy answers', suggesting a lure for users seeking specific information, which is then used to mask the malicious redirection.

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=foolproof+academy+answers In PDF document text
    • http://tezemujuv.seattleknittersguild.org/uploads/1/3/2/6/132695829/vijiz.pdfIn PDF document text
    • http://pabuz.freedom-conspiracy.com/uploads/1/3/0/7/130775868/nufaj_kefemalag_domosuke.pdfIn PDF document text
    • http://files.rmc1studio.com/uploads/1/3/0/9/130968962/xodog_wugik_zokosewosexola_roriruzosajawu.pdfIn PDF document text
    • http://files.miss-strench.net/uploads/1/3/2/3/132302876/f825b1f727a629.pdfIn PDF document text
    • http://jimuk.seanhasey.com/uploads/1/3/0/7/130775792/b47248d9d0.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/1/0434/3005/2007/files/national_awards_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8721/7319/files/ecology_and_environment_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2051/files/gasuligeforawikelusakogar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5553/8595/files/definition_of_acquiesce.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/2866/9603/files/movie_er_app_for_android_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5090/7286/files/zimolagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/8468165079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6748/7894/files/tufaluribo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4863/8363/files/besobefaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/vavuzagewepiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1663/2992/files/gst_tax_slabs_2020_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5813/3152/files/25186952889.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_off00007774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7774 5448 bytes
SHA-256: 8e6add203d4533e48434734de637b3d77a93aa01d59f7fb1527f6f332675765b
font_01_sfnt_off000089fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FE 10276 bytes
SHA-256: dcf3344b41f7218d76e92fe198db935680ee26f3e57a864b3fd69ec2bb94acc4

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