Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d504cb0a0178df9…

MALICIOUS

PDF

43.2 KB Created: 2020-08-01 22:31:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe76b9b6ef9151d2294ca26a9bc791cf SHA-1: f02928bf928ed63207ec96a401cda3a2354c06ce SHA-256: 3d504cb0a0178df9ac3c241b44bd2d4e0a98bce7f893f76d2cf00af70d3bd10e
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a redirector. The primary redirector URL is 'https://ttraff.cc/pify?keyword=java+kill+process', which likely leads to a malicious payload. The document body contains garbled text but also includes the same redirector URL and several benign-looking Shopify URLs, suggesting an attempt to disguise the malicious intent through a large number of links. The presence of PDF-specific heuristics confirms the malicious nature of the document's linking strategy.

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=java+kill+process In PDF document text
    • http://files.amyshomedaycare.com/uploads/1/3/0/9/130969683/lebajexazaxajedowu.pdfIn PDF document text
    • http://files.brightstarastro.com/uploads/1/3/1/6/131606069/panozuvijakexo.pdfIn PDF document text
    • http://files.purensimpleohio.com/uploads/1/3/2/7/132710689/jobivusi_xuvapubum.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/1/0429/2512/9894/files/verav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/73505583841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4051/7792/files/add_path_to_bash_profile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5833/0786/files/lepagiponekevopelubuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4195/6775/files/13659460320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/zukag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4848/4507/files/nogaxavavima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/4750523115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9731/7783/files/gulutadag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2832/4257/files/23726571631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/taratipusederap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6521/1035/files/folazisogezomolipofifuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/6069212889.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 8

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_off000064d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D1 5040 bytes
SHA-256: ceeaee031d0df9fe1fbdd6c20d7eb76581edaeac89d51bb511c49f435cd5fa65
font_01_sfnt_off00007615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7615 13204 bytes
SHA-256: 615aac4c849e84122415ba5682a9899439b1a19a3396a7d44081620194729261

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