Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9ceb67dee214de7…

MALICIOUS

PDF

38.8 KB Created: 2020-08-19 03:20:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9090dc11472a07eddb8f9904ff915c93 SHA-1: 0e07fe31868873780d049d0aab296c70a13d2dd0 SHA-256: b9ceb67dee214de75d30a75948f203bf329ac220b2bde5e32e73a4442c5f049a
274 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.003 Windows Command Shell

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body also contains text that appears to be a lure for a scam or phishing attempt, instructing the user to interact with clipboard content in a shell context. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=snapdeal+bedsheet+online+shopping In PDF document text
    • http://files.wantonrambling.com/uploads/1/3/2/6/132683484/buruxexatazisi-xumugutamu-lunine.pdfIn PDF document text
    • http://files.pelhamhealthcareassociates.com/uploads/1/3/1/4/131407890/daregavinefafedi.pdfIn PDF document text
    • http://files.secondchancepetsponsors.org/uploads/1/3/1/3/131379567/2170554.pdfIn PDF document text
    • http://bozifosen.pobny.com/uploads/1/3/2/6/132695569/38197.pdfIn PDF document text
    • http://files.americanhirudotherapyassociation.org/uploads/1/3/2/8/132814306/kovesalez-xilogadarapevo-gedal-sezopetulow.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/1/0431/6577/8076/files/chiari_1_malformation_surgery_radiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5858/4986/files/aramco_ipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3753/7942/files/bourjois_healthy_mix_foundation_shade_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0397/4556/files/vorafizidurur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5511/9512/files/48648806105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8731/2536/files/mathematics_extension_2_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1335/8247/files/boolean_logic_gates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bewewolifokolugetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4716/4826/files/bofemuzawavinusoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6841/files/how_to_solve_math_word_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2958/4293/files/how_many_litres_in_a_gallon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18410569865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1050/5379/files/baxuzonikilekadasifutoza.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: secondchancepetsponsors.org 6 samples

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_off000057e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57E5 5368 bytes
SHA-256: 7f39110d7ec9329d79c2f1fbe046b9e8e9ce6b9700768441fc7771f8f488da9e
font_01_sfnt_off00006a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A10 10584 bytes
SHA-256: df6db971fc55678dab9d02af15be45762f592aaaf6d416443ae43725117b70e8

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