Malicious PDF — malware analysis report

Static analysis result for SHA-256 d153c065cd633c95…

MALICIOUS

PDF

56.5 KB Created: 2020-08-07 06:28:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d445fc1d2b2da9dcaee035610970a582 SHA-1: be4ca8d2c3d5db08cdbaa529b3b0940a33a2e1e9 SHA-256: d153c065cd633c9568ecc6f71794d4d462116ccce3c98623932531d0075771f5
194 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious infrastructure at 'ttraff.cc'. This indicates a phishing or redirection attempt. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious redirector URL is the primary indicator of compromise.

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=alienation+effect+in+mother+courage+pdf In PDF document text
    • http://files.karaleighmillerauthor.com/uploads/1/3/2/6/132696598/b687e8bfe4ec.pdfIn PDF document text
    • http://files.righttaxes.ca/uploads/1/3/0/9/130969386/lomis.pdfIn PDF document text
    • http://files.bglionstar.com/uploads/1/3/2/8/132814071/vifutolevafikigisuwi.pdfIn PDF document text
    • http://files.harrellrentz.net/uploads/1/3/1/1/131163960/30386.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/1/0428/6827/7415/files/71814209507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7957/files/45822425798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5668/5468/files/57039534043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/fepidelexozul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/kagarinus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7577/8198/files/ai_dungeon_2_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3771/0744/files/50725608894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/rojavasegerosiboxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4639/6326/files/tixetuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/matawosox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/17160832256.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 4

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_off00009d40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D40 5380 bytes
SHA-256: 4bcfb6a7b6ac7575791884f3dcaf7cbc2036aa20c229dbd36d916abba0b62140
font_01_sfnt_off0000af64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF64 10400 bytes
SHA-256: 129e7a8b281a8f40de2bf72833f954ff5f14ca3a8ba67c3914c33c9f6cdfc101

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