Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7af7ced7183dc9f…

MALICIOUS

PDF

58.0 KB Created: 2020-07-28 16:57:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6bc7961a462057e85a0ff1c8725be86f SHA-1: 86c827a4f748236e8fe1b5699eae2c29df2f39ae SHA-256: e7af7ced7183dc9f744c2e9ffe0858a9cd007dc508cb8a9919cfdb812a7f79e3
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to create SEO link farms or to redirect users to malicious sites. One of the primary URLs, 'https://ttraff.ru/pify?keyword=malayalam+album+songs+thanseer+koothuparamba+free', is flagged as a known malicious redirector. The document body, though heavily obfuscated, appears to contain metadata related to the song title, suggesting a lure to attract clicks.

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=malayalam+album+songs+thanseer+koothuparamba+free In PDF document text
    • http://files.tax-america.net/uploads/1/3/1/4/131453065/1292227.pdfIn PDF document text
    • http://files.thejourneywithinus.com/uploads/1/3/1/4/131453132/9a7963423aa91a.pdfIn PDF document text
    • http://files.ablesonvet.com/uploads/1/3/1/4/131453990/vilarakuretufo.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/1/0430/3942/4669/files/durinozube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6982/3381/files/88131940555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7103/6835/files/77103808563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/60033056784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/67210791524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0541/9418/files/mukazebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4848/5535/files/50109537844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3575/4650/files/jibogawidorexezenavanuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/85326329726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6130/5756/files/davadov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2870/9539/files/35299081675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8309/4434/files/72630308820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/10486419908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/jolagekedopazuripuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/10014782792.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 5

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_off000097b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97B7 5460 bytes
SHA-256: ac6b57f04b8f84173728ee85449b600012d0156200fc3eb5ce5ed1a7bea56353
font_01_sfnt_off0000aa26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA26 14848 bytes
SHA-256: a17dc6a736a17bb321cad7ebfe48d8faa04b2ba4637ea5603dfb2b2113ef1849

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