Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc1d52ccf7035e0c…

MALICIOUS

PDF

44.2 KB Created: 2020-07-30 05:28:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18da91ed0de6dfe1fd5ce078a0ec4e33 SHA-1: ffa2f8b49f8fdef8d9a9ed736bcf3174a4a9d871 SHA-256: dc1d52ccf7035e0c711faeeab25014252853f1a05139c911e99564478a54eb8c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure (ttraff.cc). Another heuristic indicates a large number of external PDF links, suggesting a link farm used for SEO manipulation or to distribute further malicious content. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the presence of malicious redirector links and the link farm pattern strongly suggest a phishing or scam attempt.

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=cavite+mutiny+pdf+tagalog In PDF document text
    • http://files.nascarnumbersite.org/uploads/1/3/1/6/131637658/6db57bfff8eacb4.pdfIn PDF document text
    • http://files.sangeeskitchen.myworldrules.com/uploads/1/3/1/1/131163723/lidozesirelaninuve.pdfIn PDF document text
    • http://files.jessicanye.com/uploads/1/3/1/6/131607810/dipadezasijusadet.pdfIn PDF document text
    • http://files.griphs.com/uploads/1/3/0/8/130874110/bogazitimodejudam.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/1/0431/6112/5015/files/38332750191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/dakupilegiruv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1557/5464/files/97190210819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3887/3512/files/xenaroxositima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0124/9955/files/vujolegekagosukixaditon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9997/8904/files/25799765970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0124/2022/files/begazomidavamojubodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/wonediwino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/nikewigekopobiv.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 6

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_off00007120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7120 5156 bytes
SHA-256: 11af896f0f8f14bda8f4b9fbaf4388d5ec87e0e0e0d74c999d3425ef4a949019
font_01_sfnt_off000082b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82B3 9760 bytes
SHA-256: b9199695894700e07d243e341883c3b3a3eee6ddc06423913ce24c025a3d5891

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