Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea1fb056f25832b7…

MALICIOUS

PDF

34.1 KB Created: 2020-08-12 14:06:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6d8872d4b9e5c96b87380ded1e1a9fe SHA-1: fe912ed64e0304d8abb058da129f4a9e249dca69 SHA-256: ea1fb056f25832b709b9e287b887362a5fc7a60a535bdb35a21028bff676371f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to appear as legitimate documents, but the primary link redirects to a malicious URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates the primary URL is part of known malicious infrastructure. The document body, though heavily obfuscated, contains the target URL, suggesting the document's purpose is to trick users into visiting this malicious site.

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=sura+s+learn+english+grammar+through+tamil+pdf In PDF document text
    • http://wirideba.playbaja.com/uploads/1/3/0/7/130740596/moravusalunazux.pdfIn PDF document text
    • http://files.elizabethkidder.com/uploads/1/3/1/4/131453215/givopo_sidenokagubupa.pdfIn PDF document text
    • http://fugija.slotattoo.com/uploads/1/3/0/8/130814515/584317e5e11ed.pdfIn PDF document text
    • http://files.steppenwolfphotography.com/uploads/1/3/0/8/130813111/1214940.pdfIn PDF document text
    • http://files.savedanyway.com/uploads/1/3/2/6/132695881/tagub-jaliduvip-xumidipebetip.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/1/0431/5021/3274/files/road_games_allan_holdsworth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0593/3730/files/bu_tri_trong_qu_trng.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/diccionario_biblico_unger_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0765/4563/files/dawovubelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/87993118421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/20489434051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4008/6935/files/82224043124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7347/0618/files/digital_electronics_lab_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2839/7727/files/12319595456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2023/9519/files/mejixetere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6885/6222/files/p99_druid_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8477/9430/files/kamoloruzimenu.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 7

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_off0000471e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x471E 5560 bytes
SHA-256: 860eeb219f79e02527e9ac634d5de1bcb82b6eaf3e1db90199f7174bba5780ff
font_01_sfnt_off000059d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59D2 9800 bytes
SHA-256: d9fa21cafe359439aa9b0ac311e7c7456128a7b729ab4c7e0681b6dadd850101

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