Malicious PDF — malware analysis report

Static analysis result for SHA-256 e077f443b7b1db2f…

MALICIOUS

PDF

52.6 KB Created: 2020-08-25 02:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0ea6a2a8564346e5a395d252c65926f SHA-1: b0b1df033d8ae30e6ebaedee20165aeaac4bd69e SHA-256: e077f443b7b1db2f3a0b5fa2bf24552920869bdef9567bb60d2570e5ae636765
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate content, but the primary link redirects to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this redirection. The document body text, though partially corrupted, suggests a lure related to 'logical test questions and answers pdf'. No scripts were extracted from this sample.

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=logical+test+questions+and+answers+pdf In PDF document text
    • http://sofujadat.jakegreendesign.com/uploads/1/3/0/7/130739655/regivati.pdfIn PDF document text
    • http://files.lesswhoamoreyeah.com/uploads/1/3/1/4/131482976/xenoziziti_vebame_podovupix_fujosupog.pdfIn PDF document text
    • http://dewun.bellasandfellas.us/uploads/1/3/1/4/131407995/nejuzanolejabujaxame.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/1/0437/1762/3957/files/lowirapudap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3486/8897/files/vezuzasapor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/45239573739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/24130517091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9917/6612/files/melulolakizilaresod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/bakalsk_prce_upol_vzor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/2906127849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0708/0610/files/human_trafficking_law_in_myanmar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6900/6236/files/detapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/78823568869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5913/5132/files/natajisoneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6842/2309/files/sodonabimoz.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 3

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_off00008f31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F31 5480 bytes
SHA-256: 8192e5e90d61e4619d942f0838d2e1d791e6c311bd7ebf3f175add38a055ef55
font_01_sfnt_off0000a1ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1EE 10764 bytes
SHA-256: 46a04711f0d8ce10677acf1c1f279b2acf69648c72e687220a91bf8865a473f8

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