Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c4f6843cbbe343c…

MALICIOUS

PDF

62.2 KB Created: 2020-08-09 23:59:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02e0d38f02757b4e233f71f3c668f5c6 SHA-1: d47d77ddf14159637d40e76e6938977f43d3e0f2 SHA-256: 7c4f6843cbbe343c88260e836b2ba66e867f1c26995f22211a532b9ed0adb062
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to create a link farm, with a primary redirector pointing to a malicious URL. This suggests a phishing or scam attempt, likely to trick users into downloading further malicious content or visiting a compromised site. 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=the+authoritarian+personality+book+pdf In PDF document text
    • http://files.businessformedicareforall.org/uploads/1/3/1/4/131411596/6063172.pdfIn PDF document text
    • http://files.popescreationsandthings.com/uploads/1/3/1/4/131410007/fejesevenatifudufo.pdfIn PDF document text
    • http://files.westcoastmohel.com/uploads/1/3/2/6/132682230/faweju_jubalani_femog.pdfIn PDF document text
    • http://kadupezo.physedresource.com/uploads/1/3/1/4/131453902/wenufutuguno-takuzifigijig-fofodefijivi-refojava.pdfIn PDF document text
    • http://files.berryflats.net/uploads/1/3/0/8/130814118/3986397.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/98719300517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8761/6413/files/liste_allergene_und_zusatzstoffe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0668/0484/files/felipajadifog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2857/3334/files/carrying_you_castle_in_the_sky_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1040/4000/files/adobe_reader_offline_installer_32_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/adani_ports_annual_report_2020_18.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/53719268139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8603/6646/files/cell_cycle_checkpoints_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3126/3394/files/volazugex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/fepajewavefugiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4558/7877/files/ptr_7._1._5_patch_notes.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a82a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA82A 5268 bytes
SHA-256: 390778d47889ed12caedeaf9c743a799aa82e05ce1e4000677abc4331566f327
font_01_sfnt_off0000ba0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA0B 10308 bytes
SHA-256: 0d42b4b6077d5dfd933f86bbb1e2f116ad93db4af6ea0bac5e0c07f8c785c661
font_02_sfnt_off0000dd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6E 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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