Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b074fe10656fe2b…

MALICIOUS

PDF

39.1 KB Created: 2020-08-07 05:08:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2ba4dfe855361775549c7222d37c66a SHA-1: 42d2c8a5b8c973af6c44012e9ee9ccf6f3c123d6 SHA-256: 4b074fe10656fe2bef56983f5a72ee3acdf4cd811f669f3f8a91181f88afb01b
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=battle+of+the+sexes+game+theory+pdf', is designed to redirect users to malicious infrastructure. The PDF also contains a large number of embedded links, many pointing to Shopify, which is flagged as a link farm. The ML classifier strongly indicates maliciousness.

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=battle+of+the+sexes+game+theory+pdf In PDF document text
    • http://files.simonbaeckens.com/uploads/1/3/0/7/130740158/1dd22c91ac.pdfIn PDF document text
    • http://files.hermosahistory.com/uploads/1/3/0/9/130969129/megejokobi.pdfIn PDF document text
    • http://files.bughunters.eu/uploads/1/3/2/7/132741194/muwemosavudajaminebu.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/1/0438/3673/5650/files/vikurawukarodeneso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0716/4064/files/38705989989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7630/4544/files/bexugowiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7962/files/38889196621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/lubalenexasepiwizapewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/guler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/waradulukumojifepekaduj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8412/7135/files/64016615406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1376/3235/files/present_perfect_tense_mixed_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6032/0669/files/pavabomizasidotataka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8769/1925/files/xufutenokazopazefapagav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6083/8050/files/93414719665.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 5

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_off00005a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A8E 5676 bytes
SHA-256: 16665f0ba72be06ce8f753b8bc37219eca8641d8259699ecf972aa226b68ac1d
font_01_sfnt_off00006dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCA 9972 bytes
SHA-256: 1e0e150e98026b44436a6e01f866685cf07ecc69768a822b77dc6ac554dac57c

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