Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7197580543690be…

MALICIOUS

PDF

52.1 KB Created: 2020-08-05 05:18:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fec3d1f69d1ee7b389f2bf9594336a2 SHA-1: a945006aa27f432d4c23df3f5100fbbc84e76d60 SHA-256: f7197580543690be23de3ec7b66c1907c1647a80f14bd8558ba5fc5da62522cd
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'electrical design engineer interview questions and answers pdf' and the malicious URL. This suggests a lure to a phishing or malware distribution site. The presence of a link farm heuristic further supports the malicious intent of redirecting users to external sites.

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.ru/pify?keyword=electrical+design+engineer+interview+questions+and+answers+pdf In PDF document text
    • http://files.baysidewestbay.co.uk/uploads/1/3/1/3/131397964/4253755.pdfIn PDF document text
    • http://files.liberum13.com/uploads/1/3/0/7/130739777/4147947.pdfIn PDF document text
    • http://files.tinagebhart.com/uploads/1/3/2/6/132681969/3800f8.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/1/0430/3791/7345/files/waxekisexerilepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8083/5482/files/8th_grade_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/93819852267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32150460784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1543/0553/files/98251942696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/livro_zen_budismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8729/8714/files/74681993916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87074842841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/www._kickasstorrent._com_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4546/9858/files/2675299558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9906/8310/files/29669495860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/dinopevugutenitaxes.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 2

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_off00007f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F80 5440 bytes
SHA-256: 8a8d04fb45f280828f646d02dcd481cb49a0923610286a05fdcf0f0ec28991b4
font_01_sfnt_off00009217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9217 10148 bytes
SHA-256: 0f8623c21c0ee3fef0102ab2eaf3fbda6304cd40f11e50c3f8867b50f268ee55
font_02_sfnt_off0000b498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB498 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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