Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1415078780905ea…

MALICIOUS

PDF

36.4 KB Created: 2020-09-19 16:00:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a3b3ebaf396e2a588a186899711c8c5 SHA-1: fdeeaaa3539ec5641ece0e46d651d5777c6b3f68 SHA-256: e1415078780905ea65065221e6fffb3c40cec3129ecffa0458f62c17f79ef1b7
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link pointing to a redirector associated with malicious activity. The primary malicious URL identified is https://ttraff.link/wix?keyword=descargar+kingo+root+apk, which is likely intended to lead the user to download and execute a payload. The document body, though heavily obfuscated, contains references to software downloads, reinforcing the lure.

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.link/wix?keyword=descargar+kingo+root+apk In PDF document text
    • http://files.vance-smith.com/uploads/1/3/2/3/132303410/6527860.pdfIn PDF document text
    • http://files.quietgovernmentmen.com/uploads/1/3/1/4/131437566/fadapinedex.pdfIn PDF document text
    • http://raledif.fusionlandscapedesign.co.nz/uploads/1/3/0/7/130776007/7899977.pdfIn PDF document text
    • http://tawudino.sabco.org/uploads/1/3/0/8/130873995/b2e02e1cb22d3a.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/1/0432/2331/8683/files/91105785087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6623/6826/files/99153771459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8481/5259/files/urticaria_angioedema_anafilaxia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3772/6622/files/bahaya_rokok_bagi_kesehatan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6409/8970/files/jogos_ppsspp_pelo_mega.pdfIn PDF document text
    • https://b0f14589-d78e-45a1-b9b6-351d341dea05.filesusr.com/ugd/e0d0cf_8dceeebdca3b4373bc25bd9abde7b82d.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9429/4171/files/11390432055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4293/3657/files/wilson_medicinal_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/nisukoruvakogusexixepuni.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 3

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_off000051bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51BD 5132 bytes
SHA-256: 0ed3d008511b8336fc70f9475dfa0b746d25d07694c6cdd0954f7d5eac0315e3
font_01_sfnt_off00006352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6352 9928 bytes
SHA-256: 1804af224ebc5fbcf50d6e56c37d52bb01672eb4e9b7cb9b673199862af8def1

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