Malicious PDF — malware analysis report

Static analysis result for SHA-256 44bc68e655cd83d0…

MALICIOUS

PDF

38.4 KB Created: 2020-07-25 15:23:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e35ade99f98a9b865abe682d6df909ac SHA-1: a2313a188455e13f487204be002a2c7114e3aa83 SHA-256: 44bc68e655cd83d0bfdbb0679cb5e3472392ed6647db5f7f37898ba53a32a3dd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc' with a keyword suggesting a lure for 'aurora full movie hd'. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on Shopify but point to external PDF files. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious redirector and the link farm structure indicate a social engineering attack aimed at directing users to potentially harmful content.

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=aurora+full+movie++hd In PDF document text
    • http://files.dassiedahan-author.com/uploads/1/3/1/4/131436971/wixodasa.pdfIn PDF document text
    • http://files.thebrooksideinstitute.net/uploads/1/3/0/9/130970003/1209803.pdfIn PDF document text
    • http://files.greenbrierconcours.com/uploads/1/3/2/7/132740659/8062648.pdfIn PDF document text
    • http://files.thisstorybeginsinthemountains.com/uploads/1/3/2/7/132740804/a2a512858516.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/1/0436/3078/8758/files/34620036106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0490/8952/files/2257826542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2449/6286/files/88431113801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/411674922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4940/2024/files/gaxubapizuvanuzenuwovanuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/fijogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7511/4910/files/tanifuxisidobutijaxepum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/wiwodakumabuzubobikid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0633/6925/files/zamulowumelosaza.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_off000059dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59DD 4712 bytes
SHA-256: a6737b271ceb2dc2f527607c706554d97a69364adaab4491015d0df69e4f036d
font_01_sfnt_off000069dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69DD 10272 bytes
SHA-256: d92bd7d413e910b55d724c3d4933818c35af4a84fa6e3442bc34f480e981bb83

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