Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aee728d865f0ba8…

MALICIOUS

PDF

41.2 KB Created: 2020-08-15 07:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e278370fb1007612a895e11e03ec729 SHA-1: e0ede7999fd9fbb137d58f6d17090345da378dc1 SHA-256: 8aee728d865f0ba8ddba3b8105b73b2753960386730fc41bacbd61edc6f2a8d4
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=citra+emulator+requirements+android'. The document body, though heavily obfuscated, contains this URL and other embedded links, reinforcing the lure. The primary intent appears to be redirecting the user to malicious content via the ttraff.com domain.

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.com/pify?keyword=citra+emulator+requirements+android In PDF document text
    • http://famaj.lovepuertoricogoldens.org/uploads/1/3/0/7/130738732/4714862.pdfIn PDF document text
    • http://wutipoj.124line.com/uploads/1/3/1/3/131383664/lukutiw.pdfIn PDF document text
    • http://files.pelegreenberg.com/uploads/1/3/2/6/132695445/linivepos_lusufad_wubozi.pdfIn PDF document text
    • http://files.stencilgenie.com/uploads/1/3/1/4/131408741/xogib.pdfIn PDF document text
    • http://vobel.eldoradohillsarts.com/uploads/1/3/0/8/130814017/5114976.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/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9308/5598/files/kubuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7211/7141/files/mowalutag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3161/5909/files/48826955764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4261/files/video_converter_software_for_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2163/7544/files/28680423904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/80157308148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6771/8309/files/temanulesiwufeta.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_off0000648a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648A 5004 bytes
SHA-256: a9585d4de69faa1953e7e5a6c473fc5a5e8beca9a3de770ee39bb4bf90ac9596
font_01_sfnt_off00007566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7566 10156 bytes
SHA-256: b86ea55021d99920197b21a00e68e4474e566f6cb24355b5b270c15749bd4927

Open this report in the interactive analyzer, or submit your own file for analysis.