Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dd906acecc67194…

MALICIOUS

PDF

47.2 KB Created: 2020-08-25 15:39:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55199ad012d6bc80b9f6011076fd6178 SHA-1: 5fbd73254ad2576387151211cfe696d7805df16f SHA-256: 2dd906acecc67194e8de71ea8fe52e3b60b57556db800e878f9609ecac27c199
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to interview questions and the malicious URL, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on shopify.com, which are likely part of a link farm to improve SEO for the malicious redirector.

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=behavioural+interview+questions+and+answers+examples+nz In PDF document text
    • http://files.thierryrmontoya.com/uploads/1/3/1/3/131380337/jejal.pdfIn PDF document text
    • http://files.songwritertill.com/uploads/1/3/2/6/132682329/8893358.pdfIn PDF document text
    • http://files.gnslasvegas.org/uploads/1/3/2/7/132740584/9206975.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/1/0436/1977/8720/files/amelie_piano_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/9053/4561/files/92858400390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3218/8840/files/canyon_burger_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/wuvulobelolodotaragekef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3606/3397/files/sijitedifimanujufuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1791/0947/files/libro_defensa_siciliana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/7108/7268/files/date-_fns_format_utc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8030/2244/files/99432714081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6508/7902/files/70659869969.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 6

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_off00007995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7995 5644 bytes
SHA-256: 55b683a10559f26d339c5a5ef16c8e984f40830292629de2aa3300ae5ab90b9f
font_01_sfnt_off00008cb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB8 10352 bytes
SHA-256: 6f5fa9742572e964d1114ff124c029d8bf78e1ae35ddec9a27f8e2973c758fb5

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