Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7cd14382db36fdf…

MALICIOUS

PDF

47.9 KB Created: 2020-08-17 07:45:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1dfb4761859017e543f8cc8740b5624d SHA-1: 32f2b730643a1dac198ab6b762ae5163af44bcbf SHA-256: e7cd14382db36fdfa3470495741b2122a7580f1e3a09c31ac8c4f442908c29af
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that points to a redirector service. This indicates a likely attempt to direct users to a malicious site, potentially for phishing or malware delivery. The ML classifier strongly supports the malicious nature of this PDF.

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=performance+exhaust+for+2015+jeep+grand+cherokee In PDF document text
    • http://files.montagmorgen-workshop.com/uploads/1/3/1/4/131453451/serimodatet.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/1/0431/6263/2360/files/99734760109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/75686800034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5104/8357/files/2n_ford_tractor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9890/6528/files/akreditasi_puskesmas_bab_1_2_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/75317747948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/5894466583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7490/2423/files/hoe_bestanden_samenvoegen_tot_1_bestand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0364/9954/files/31363826721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8918/2376/files/gupuxabejidufuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36281161478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1792/7837/files/linomarogujiwam.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 2

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_off00007a3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3E 6196 bytes
SHA-256: 427919c0ff9ade255831f6b0e74168b869a41757aa5071dcabd8b43d207edfae
font_01_sfnt_off00008f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F32 10388 bytes
SHA-256: 1c4d22b416580f22eb44a9b51f262b9bb24013dbe58a24c9379f3713009045f3

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