Malicious PDF — malware analysis report

Static analysis result for SHA-256 600bcae64986f7c7…

MALICIOUS

PDF

41.0 KB Created: 2020-08-22 14:24:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acedf7b85407b383274bf53002b8913d SHA-1: dadb0954067c6e7d8af4703633f462cf87972c97 SHA-256: 600bcae64986f7c70b33622052c9b745aaf1abbbf9057740ebb20225ff4f72f3
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=automatic+synchronization+android', suggesting a phishing or scam lure. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports malicious intent.

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=automatic+synchronization+android In PDF document text
    • http://renewoson.gymtymenow.com/uploads/1/3/1/8/131856158/7619597.pdfIn PDF document text
    • http://rodusilat.nc-xh.org/uploads/1/3/1/6/131637881/8600646.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/1/0431/4133/3147/files/93168325703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0727/0312/files/weather_lawndale_ca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7061/1871/files/defusadewiweta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/60098750555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5769/2320/files/muxojijozebisafix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9073/0398/files/17921638381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9465/5390/files/iamotus_bluetooth_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0027/2792/files/23137697366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3124/8541/files/72848509339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/49839721997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/tobulidipafunenuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/tunefupolojus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4991/7347/files/budumodijozurarinojufesuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/nudenugujozusureluk.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6099 5288 bytes
SHA-256: fc8eb0be96bc03142af28b0f177ed6196823705ab6ea09f9c3cf1d430ab71edf
font_01_sfnt_off0000726c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x726C 10632 bytes
SHA-256: d40028e9dc81be0ba1a1b8163978d2db811ad166e23c5cb2cdfe6f6437c61f24