Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2b8808a423a451a…

MALICIOUS

PDF

56.4 KB Created: 2020-07-31 15:15:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e8cdaa8fc6b2451453e96768b4c96ba SHA-1: 605026987f5a0f7c0903ad6aade4b67a0a784fe2 SHA-256: f2b8808a423a451aaa62bd76d118dc04b8ab71e51399a4264513cc0b71359e11
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Carte blanche credit cards', suggesting a phishing or scam lure. The PDF also hosts a large number of external links, indicating a link farm for SEO manipulation or traffic redirection.

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=carte+blanche+credit+cards In PDF document text
    • http://files.engage-physiotherapy.com/uploads/1/3/1/4/131483305/9bd06de312eb4.pdfIn PDF document text
    • http://files.helpsaveourkids.org/uploads/1/3/2/6/132681611/c4452415272.pdfIn PDF document text
    • http://files.earsforyears.org/uploads/1/3/0/7/130775916/siniseri_sefobazuje_mitomu.pdfIn PDF document text
    • http://files.longbeachjunkremoval.org/uploads/1/3/0/7/130740504/751102.pdfIn PDF document text
    • http://files.giuseppemanzillo.com/uploads/1/3/1/4/131453226/wujodar.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/1/0432/0165/9043/files/22420506448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52244446143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4999/2860/files/95074852111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/nijepifor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7763/2154/files/filifepinejiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2031/9893/files/82125016331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0036/3169/files/33218180128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2803/8310/files/jurarosabebixawinar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/rilikaxezinowilusupudomud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/52185441442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/42751810316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6949/7753/files/33675205346.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_off00009e1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E1A 4868 bytes
SHA-256: ac8db3fad47db3545e736d58c7136bbd33f7add5ff7be4a0bb5d433527a03894
font_01_sfnt_off0000ae8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE8E 10968 bytes
SHA-256: 8cc486e36e18803284e4ac1155f018a9e7813043ba5c4f86dbc69db7712e4b40

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