Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeda36155391c70d…

MALICIOUS

PDF

46.4 KB Created: 2020-08-04 04:12:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d02bc0ab9e9e0dfcabe09546e032434 SHA-1: afaf02e25baf686e5059b74de209a15cc7ef8659 SHA-256: aeda36155391c70d4f43e7d4b0318a82c4ec7a06d66714b3303ef62de8ea0bc0
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and ML_NYX_PDF_MALICIOUS strongly indicate malicious intent. The document body, though heavily obfuscated, contains the malicious URL, suggesting the document's primary purpose is to lure the user to this external resource. No scripts were extracted, but the link farm nature of the embedded URLs points to a distribution or phishing campaign.

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=a+grande+muralha+da+china+kafka+pdf In PDF document text
    • http://files.wormfoodforthough.net/uploads/1/3/0/9/130969243/e9c22e71c4f8.pdfIn PDF document text
    • http://files.data.dbbcso.org/uploads/1/3/1/4/131411596/33067a631.pdfIn PDF document text
    • http://files.bilingualplanet.com/uploads/1/3/0/8/130814397/relexekulijugaj-wumaroguguzu-ruwupef-dapukiputon.pdfIn PDF document text
    • http://files.carolinarack.com/uploads/1/3/1/1/131164043/4456858b0475d.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/1/0433/7300/2902/files/kupeteloraw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8004/7010/files/lefimewamurifeligowuzeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/soxafil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3152/7575/files/89089555574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9900/5863/files/mijitifafogowosasapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/28195946973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2709/5967/files/73791626991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0505/8976/files/mimesipezatonaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4529/8074/files/vupike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3776/9384/files/auto_tune_7_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6401/4486/files/numpy_sort_array_by_column.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9275/3049/files/47419871473.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 8

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_off000076ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76EA 5444 bytes
SHA-256: a485f33a3020be35983e3e076d2132b046a4ff7ba6f4e30d16238e44925e7664
font_01_sfnt_off0000894d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x894D 10372 bytes
SHA-256: 283decbb03cac2915c3e7fed722b7e7b0282f94f26c1bb068e8b041e4faebd8a

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