Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5b0674ac2bd5fad…

MALICIOUS

PDF

41.7 KB Created: 2020-08-10 20:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d1e9478d57526d7562b30dccd49a47e SHA-1: 4f37bb0523b32bc46c77fb136f20a8411c3c5c42 SHA-256: b5b0674ac2bd5fadae20b214a273a3813a274fefd376ca77fb360312e704e650
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a free CCNP security download, which is a common lure for phishing or malware distribution. The document body and embedded URLs confirm the intent to redirect users to potentially harmful content. The presence of a large number of external PDF links further supports the link farm tactic.

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.com/pify?keyword=ccnp+security+pdf+free+download In PDF document text
    • http://files.carolynbridgetkennedy.com/uploads/1/3/0/7/130739212/jevuzinagitini.pdfIn PDF document text
    • http://files.suilah.com/uploads/1/3/1/8/131857193/dajakedi_venugenod_sabifenuzigip_muzisoxe.pdfIn PDF document text
    • http://files.breakicemarketing.com/uploads/1/3/0/7/130775698/giluzowe_joxoluvijezexeb_sisefuxi.pdfIn PDF document text
    • http://files.rebeccakallies.com/uploads/1/3/1/3/131378990/dujowejumafukurim.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/1/0428/6775/3116/files/fofivositawukulutowina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5802/6904/files/93656720039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3792/5269/files/bilokotupidemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8688/9639/files/moxikamafowubilivelikiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7029/9038/files/mufeked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0524/5597/files/carlos_castaneda_viaje_a_ixtlan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6111/6064/files/torewemikagitidazoveg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1451/9973/files/84815596833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59854739703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8272/7067/files/rugen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7401/9740/files/34491121519.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_off000064d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D2 5248 bytes
SHA-256: 8e4a51cb67642889a468dc058cd215acc90c53a7fd4deb30c73de9d753e4beab
font_01_sfnt_off000076cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76CD 10204 bytes
SHA-256: 521aa4a5a15986137b540b13ed532efdccee7f64877986dfc540a8b3927505da

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