Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5ba1012d5d388ae…

MALICIOUS

PDF

44.1 KB Created: 2020-08-07 05:44:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 081a9006e701d3df8be6105832f78fc5 SHA-1: 7fda986ca3311b3897cfdab0f8b62bb1b1bdc271 SHA-256: c5ba1012d5d388aec62395cca2d922febc9d1cbd81be48c8cb18074043b81feb
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=budaya+visual+indonesia+pdf'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a 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=budaya+visual+indonesia+pdf In PDF document text
    • http://robadino.prayerknight.com/uploads/1/3/2/6/132681947/a5f44cb63af6b1.pdfIn PDF document text
    • http://files.danklemencic.com/uploads/1/3/0/9/130969873/5333285.pdfIn PDF document text
    • http://files.klajournalism.com/uploads/1/3/1/6/131637240/7103638.pdfIn PDF document text
    • http://files.casameravigliosa.com/uploads/1/3/2/6/132681579/cf0b23decf2e7aa.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/1/0437/1510/0826/files/fivirujoguro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52244446143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/63294482974.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9416/3109/files/anodizing_aluminum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71860998709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4393/6673/files/9936490046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5806/0703/files/wijaxisirefimuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/89789436275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9926/6979/files/busiturabesagowolamiwexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2557/1733/files/29206552827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4208/5783/files/womixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2739/7797/files/bible_book_in_tamil_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5951/9387/files/12423853724.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 3

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_off00006f5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F5D 5152 bytes
SHA-256: 6e5bf5ac33b24d6a4561bb793c54e7bd1f14ed5cea16db2c0cff15752752abd9
font_01_sfnt_off0000810d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x810D 10068 bytes
SHA-256: 323af5d31a0d1236cbd2c7bd88c0945736e09817aec7ea04e25b855353845e11

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