Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd07c14e3fe4358…

MALICIOUS

PDF

173.1 KB Created: 2020-08-16 01:03:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed86520c1eb7e076ce7630c5609e02ca SHA-1: 8ce40e96712f057c61ed0526a1c67f690097ca6b SHA-256: 3cd07c14e3fe4358ed41f6d7b252c259ecd3b0fc5a45075a1f1820ae21890402
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=another+love+cover'. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, contains the same malicious URL, indicating the primary intent is to lure the user to this external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=another+love+cover In PDF document text
    • http://files.startmyseo.com/uploads/1/3/1/3/131380889/5f457.pdfIn PDF document text
    • http://files.kcldentalsociety.com/uploads/1/3/1/8/131871721/b91e823f138c50.pdfIn PDF document text
    • http://files.captainstinkyandsailorpuss.com/uploads/1/3/0/7/130776088/8649604.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/1/0431/9258/2293/files/pimenimuwefediwawuxofodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2086/9019/files/debuwapixomekojekusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7446/7478/files/73998373619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4836/9319/files/pabijapuroze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2892/9945/files/tolejoxizovizoguza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9655/6191/files/15128119066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/roads_to_geometry_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9524/4441/files/free_ebooks_learning_russian_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6615/4394/files/piximabega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2664/4125/files/kafuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/50374984179.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
🗂 Part of campaign: casa-collective.com 10 samples

Related samples 5

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_off00024a08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24A08 4288 bytes
SHA-256: b639a5062b02c714e72afad92ef38b142be8c0ff71cdf8c7dc995047f29674ef
font_01_sfnt_off00025883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25883 25076 bytes
SHA-256: a35b796bbe98cce1dcb6da5095fa168f042b5c81df33123617e2ef305947dcde
font_02_sfnt_off000296db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x296DB 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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