Malicious PDF — malware analysis report

Static analysis result for SHA-256 9db593099ee03b5f…

MALICIOUS

PDF

43.0 KB Created: 2020-08-03 05:50:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 398b4de89b016b1d1fb87af7f2360e88 SHA-1: d461de45b952fcc555ae1f94ffd481461a0efe79 SHA-256: 9db593099ee03b5fb83e84aa0f6c415611e33d5199ece703687911e938092c4e
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, specifically 'ttraff.ru', which is designed to lure users with search engine optimized content. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains text related to a 'Motorolla bluetooth headset manual' and the malicious URL, suggesting a phishing or scam attempt.

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=motorolla+bluetooth+headset+manual In PDF document text
    • http://files.threecreekaussies.com/uploads/1/3/2/7/132710655/sujut.pdfIn PDF document text
    • http://xemaj.brdge.org/uploads/1/3/0/7/130776177/juzojenebidovizoxev.pdfIn PDF document text
    • http://files.womenartistsreaction.com/uploads/1/3/2/3/132302863/8d22be5d98d153.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/1/0431/6191/1460/files/pejumitoluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9092/0099/files/52835889641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1260/4582/files/xojedup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6278/7237/files/wekagomujurufaxanelufulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/67402893274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8764/3302/files/51626910823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/35168681385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/gemeneniwowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5132/6371/files/44556040107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7086/6079/files/84842764990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2408/0282/files/40649085493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/79706007640.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_off00006a9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9E 5212 bytes
SHA-256: c783b06ffbf2513f0a6088514e4132c26ed7f1eae6aec34f093360e781162147
font_01_sfnt_off00007c28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C28 10224 bytes
SHA-256: c413c20093607f053e9d31e30886f5a581aba5b921e6dab683a7bddbdd9c7dff

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