Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e55214da2cf2a1f…

MALICIOUS

PDF

53.5 KB Created: 2020-08-06 13:27:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 311e0bd2497bdf495df9200a06dcfc72 SHA-1: 5d9df53720e21cc870c75251559e81e75e6b28f0 SHA-256: 5e55214da2cf2a1f0f86e7452d019f9fd9f3ccfacc69b24ae25a5f54cbd31d92
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to redirector infrastructure designed to obscure the final malicious destination. The primary redirector URL is identified as malicious, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF links, reinforcing the SEO link farm and redirector heuristic findings.

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=amrita+pritam+poems+in+english+pdf In PDF document text
    • http://files.maximus-ed.com/uploads/1/3/0/7/130775503/f94ed145dfb40a.pdfIn PDF document text
    • http://welipag.mrseitner.net/uploads/1/3/1/3/131380429/dagutirag_fokumuwa_nexekipupojibi_fizomoseli.pdfIn PDF document text
    • http://files.ignaciocarballo.com/uploads/1/3/1/1/131164112/1998454.pdfIn PDF document text
    • http://files.obxchirothrive.com/uploads/1/3/0/8/130813524/kaziponowe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fadanamimurusekebunom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5814/2120/files/34557512245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4845/9673/files/84943088959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/pem_to_pkcs_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/42601526633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3934/files/63886198401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/jovojozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0785/2192/files/fijavazelenagopaxobapuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/53805385384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/gungeon_high_kaliber.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3429/5966/files/vatewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/gezepimakizarepusopazep.pdfIn PDF document text
    • https://pixabay.com/In 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_off00008405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8405 5444 bytes
SHA-256: 5b35c8d77e3553b032cedf2e0e93d68b8d4657992b0869789da00f59d8bef6d2
font_01_sfnt_off00009658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9658 10332 bytes
SHA-256: 5cd023da7044fa3ad8eb5f6488588ac671aaf2261efe9728b1eb4c50fb85c10d
font_02_sfnt_off0000b9a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9A6 3916 bytes
SHA-256: 733a0b3cab0a19eb552ca82333052b819e5f072fbbf086f0ca718283b93f4858

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