Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1dc6a323fd784a5…

MALICIOUS

PDF

50.5 KB Created: 2020-08-12 08:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6b74a2ba29bceb1d5688b190962f3d1 SHA-1: 0a6344cc25dc2989ee3562131c099103f5983591 SHA-256: c1dc6a323fd784a5174f2f53ce6664183b5b20af25426234e79fe78b88f4d1ba
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text fragments and URLs that suggest an advance-fee scam lure, likely related to a lottery or prize. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking for malicious content.

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=lic+jeevan+saral+chart+pdf In PDF document text
    • http://files.oxfordshire-epc.co.uk/uploads/1/3/0/7/130738915/tilejirov.pdfIn PDF document text
    • http://zukito.hypnosisworkz-sp.com/uploads/1/3/1/8/131856626/bidak.pdfIn PDF document text
    • http://files.marker99.com/uploads/1/3/1/4/131453429/rijijovopu.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/1/0432/6467/1904/files/95740979196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1311/9905/files/32580168166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0381/0716/files/el_mapa_del_autoestima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/babofuvatafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6318/8383/files/51584482879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9273/files/arabic_alphabet_letters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1572/3414/files/fuvigedeganap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7510/7990/files/56006897989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8625/9100/files/28297405104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fulefevizurosojasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3462/4679/files/vumojipikunabulirawowa.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000794f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x794F 5000 bytes
SHA-256: 77d9a32654abee8c40e120ef6e4eec911498b927746c3f1509c70b278366e7c2
font_01_sfnt_off00008a43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A43 10812 bytes
SHA-256: f19e5d55b225497d517d369827cb9d233cf77cc4ea0e7eb2b98cbef58adcb203
font_02_sfnt_off0000aee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEE9 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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