Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ef1f63ed7e2a3b…

MALICIOUS

PDF

86.9 KB Created: 2020-08-01 09:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80816217c3fbfaa657f70e53d364a9bd SHA-1: cf0103d184e6758b65ab63747ad46ab2123bd304 SHA-256: e3ef1f63ed7e2a3b89bb0661546dcae6203684ee0fe8b4977779ea28349ebf25
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the string 'Pokemon gold cheats' and a URL that matches the redirector identified by the heuristic. This suggests the document is designed as a lure to redirect users to malicious infrastructure.

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.ru/pify?keyword=pokemon+gold+cheats In PDF document text
    • http://files.perlattorney.com/uploads/1/3/0/7/130776646/5225970e.pdfIn PDF document text
    • http://files.the-songbirds.com/uploads/1/3/1/4/131438397/zidokovo.pdfIn PDF document text
    • http://files.modernruthboutique.com/uploads/1/3/1/3/131384552/tevozafadibape-keviwukugifunup-zudewe-fogagobezikowob.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/1/0429/5249/1159/files/fapugakated.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/dugufid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/39292140685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9024/5787/files/suzokupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7118/3777/files/33580462534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8826/2821/files/avery_8167_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7427/3948/files/nokoteroluraxebenowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8434/1657/files/nafopur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/53694744179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6504/0282/files/15748617972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/regepolisijezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7755/7660/files/64188355682.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 4

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_off00010dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDE 5320 bytes
SHA-256: 73d46102444c7cdda3d8d0414eb3b32a25c7b6051d0c5da4fe3b5e15a63ebf43
font_01_sfnt_off00011fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FD8 15152 bytes
SHA-256: e00802e7f3ed9ce1f020c5038c632b9e908ca3dec3b51de97210a5844363610e

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