Malicious PDF — malware analysis report

Static analysis result for SHA-256 845f34b03325d157…

MALICIOUS

PDF

43.2 KB Created: 2020-08-25 23:12:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 222f7bc94eb1cc01175fe51de6bbcfdd SHA-1: 01fc4760c9f4968bd2fdee9bba450fc82e96b1dc SHA-256: 845f34b03325d1577bdaf0784ccbdfcdd30ac4a48cddd6074c1685bb016cfb1d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking Shopify URL, suggesting a lure for free content. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating an attempt to drive traffic to malicious sites.

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=way+of+the+turtle+apple In PDF document text
    • http://files.elangamaker.com/uploads/1/3/1/3/131379748/xuxitapivu.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/1/0452/5346/0130/files/english_fal_grade_8_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8718/3515/files/diabetes_mellitus_type_2_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3363/2661/files/1638732295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0942/files/nidimebisuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4411/8423/files/49262051037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9702/1861/files/67804435643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/bafuluvufileraziwomutifix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/5255/6437/files/summerslam_2018_results_bleacher_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3730/2679/files/buvudifuvobizerojuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/3517176456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7391/2488/files/pibovese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0956/3045/files/desactivar_advertencia_de_uso_de_datos_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/kigir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87294954422.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_off00006c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2B 4924 bytes
SHA-256: fe439bef84b23e9bdb15ef446939e028ef9e8af2bf5a5a91cfbcfedc9a6db8a2
font_01_sfnt_off00007cfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFB 10192 bytes
SHA-256: 50a23e69f9b9883256f8f77f76c8c42bd8915ef4c4014ad530d4d7a735dc5c8c

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