Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee50f680d312be70…

MALICIOUS

PDF

40.6 KB Created: 2020-08-17 16:12:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f27c41355bd7cb908dab6bf3318275b SHA-1: 4f4cbb9bbab0b7b6c5ae4c22fc4532bd6f77bc02 SHA-256: ee50f680d312be7060a668ddb52ae752e14973ca7e63d2820f7166029ce75068
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many pointing to Shopify-hosted PDF files, which is indicative of a link farm. One of the primary links redirects through a known malicious redirector, ttraff.com. The document body contains garbled text along with a reference to the redirector URL, suggesting an attempt to obscure the malicious intent. The presence of a link farm and a malicious redirector points towards an attack pattern aimed at either SEO manipulation or distributing further malicious 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.com/pify?keyword=lagu+cakra+khan+kekasih+bayangan+akustik In PDF document text
    • http://files.quoisdesigns.com/uploads/1/3/1/3/131384424/8f8b5b1.pdfIn PDF document text
    • http://xalumepip.tiffanijenee.net/uploads/1/3/0/7/130775493/eaf41d6223d5513.pdfIn PDF document text
    • http://files.alanahbeautyandsfx.com/uploads/1/3/2/7/132710569/6985023.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/1/0431/6345/1549/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0273/6279/files/graphic_designer_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0663/1833/files/zororevodekowojenurulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4565/6488/files/lalitemetamilarabubub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/34121045741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9956/2911/files/pradhan_mantri_awas_yojana_list_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4141/5587/files/gaxebabusagesefuzezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3415/5928/files/30086128508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6934/0822/files/wazafirubonatosit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/29280910477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9729/2949/files/mindray_bc_3200_auto_hematology_analyzer.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_off000051e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51E1 5276 bytes
SHA-256: 4c16d300b4b99e28fec9c449b86e8eef23647819a6860175cce6ed508b1ebda9
font_01_sfnt_off000063cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CF 15456 bytes
SHA-256: bc085149e974493d503a9344fc3f934480ec71abb4f13c48f4de3429a1f275b0

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