Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae0a96dfecd01df6…

MALICIOUS

PDF

42.8 KB Created: 2020-07-28 19:09:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d7291e3d14238cfd8fc5f55dce55c8fb SHA-1: 7050aeefadde7a9532084d396ff9b19986a7655a SHA-256: ae0a96dfecd01df6c2ec2d5306fb02ada374a445d5059cfe496f276627b25bbf
194 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains numerous embedded links. One link points to a known malicious redirector, and the document body, though heavily obfuscated, appears to contain text related to 'Amharic audio books' which may serve as a lure. The presence of a large number of external PDF links suggests a link farm intended to distribute malicious content.

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=amharic+audio+books In PDF document text
    • http://files.egsdmusic.net/uploads/1/3/0/7/130738722/zewile-gopatadaxin.pdfIn PDF document text
    • http://files.gr8ampottery.com/uploads/1/3/1/4/131453657/5775037.pdfIn PDF document text
    • http://files.leclercenterprises.com/uploads/1/3/0/9/130969873/ac30bcad522.pdfIn PDF document text
    • http://files.ucfifc.com/uploads/1/3/0/7/130739067/pidiriromajewaf-fowesobuzat-busadabadoboda-lufenajoze.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/1/0428/6644/2406/files/tidexibemugakipegijirib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/19422896697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6083/files/84059466419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4965/files/27599049487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8386/6007/files/36742529907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/62079642140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4939/4071/files/37922698604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1140/0102/files/mujemegeremokipavuwop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1832/0029/files/87867097412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6781/0726/files/vuluzofuvo.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 2

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_off00006ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE3 4916 bytes
SHA-256: 57ff2eabb931f1dbfb4a499fc4baf41e1075937836ac27a2f86520bd513f687e
font_01_sfnt_off00007b78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B78 10144 bytes
SHA-256: f94027c2439187750a4926d024f0745d8478fb8265e3e4be950c9e20361db5b1

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