Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d895c71e93687a9…

MALICIOUS

PDF

61.2 KB Created: 2020-08-22 18:25:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c5a132092d07f87df0cb9ced19131ba0 SHA-1: 368cf1e0083d8408cfde5c31202287594a804812 SHA-256: 7d895c71e93687a9affb4a5ad1b9c94d06988b05e269ad531add8ab15071b9ac
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed to appear as legitimate content. The primary malicious URL, 'https://ttraff.cc/pify?keyword=adb+shell+android+settings', is identified as a redirector. The presence of a 'download button' lure and the ML classifier's high confidence score further support the malicious classification. The document body contains obfuscated text and embedded URLs, suggesting an attempt to disguise its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=adb+shell+android+settings In PDF document text
    • http://bagoja.queenofthewaves.org/uploads/1/3/0/8/130814328/1079946.pdfIn PDF document text
    • http://jofejol.croberts100.com/uploads/1/3/1/8/131857114/rubelumeb.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/1/0430/7507/6258/files/90204977303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/47635938219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3319/7718/files/wafusojezijuxop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0258/3449/files/bofer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0302/files/xenuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2100/8802/files/apa_manuscript_guidelines_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/98931901781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/congruent_shapes_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/vuziza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6758/0322/files/hartman_color_personality_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2590/5317/files/queen_bohemian_rhapsody_partitura.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_off0000ab77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB77 5216 bytes
SHA-256: 2afd5d19bd551fce87c3eba51410828571df8693ba9ab3502b021d03b36df4af
font_01_sfnt_off0000bd25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD25 13504 bytes
SHA-256: 239e780d01013c8e26801f41a07dcd644910db8a7cca2cfd59b04bace283b268

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