Malicious PDF — malware analysis report

Static analysis result for SHA-256 c48575df370ae3c8…

MALICIOUS

PDF

40.0 KB Created: 2020-08-13 23:13:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8bf61e3ef09e6a0397ce82b59a2ff7de SHA-1: d3f3771f83d5a5723f39157cd27cde7236294311 SHA-256: c48575df370ae3c8d9f985837da551b914e1c7db2b0ac3cddcd9a2d34fea7fb6
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.com, which is a known malicious domain. It also features a link farm of external PDFs hosted on Shopify, likely for SEO poisoning or to obscure the malicious redirector. The presence of a 'download button' heuristic further supports the lure of clicking the malicious link. No scripts were extracted, but the PDF structure and embedded links indicate a redirection-based attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=grunge+brush+psd+free In PDF document text
    • http://files.trinibnb.com/uploads/1/3/1/3/131380052/1907250.pdfIn PDF document text
    • http://files.southernairehuskies.com/uploads/1/3/2/7/132712355/1ee93b84e.pdfIn PDF document text
    • http://files.charlenehuang5683.com/uploads/1/3/2/6/132696111/3207819.pdfIn PDF document text
    • http://files.stlouistennriverpacketco.com/uploads/1/3/1/4/131437657/senoti.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/1/0431/9540/0349/files/47042230883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2732/4310/files/80839951004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7087/4009/files/mowakefesatenolalitopago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1103/9655/files/34832249162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4956/6886/files/41962442599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2141/7122/files/lukaviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7278/1478/files/lozasomewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72710717911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0707/4723/files/puxusewurameriva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1003/0748/files/kubopivizet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1223/files/heartstrings_south_korean_tv_series.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_off00005fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA3 5232 bytes
SHA-256: f9b34d1144bb7f71bb6ce374daa8b82cbee8fa1f54721561ced3f7568da2a124
font_01_sfnt_off00007166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7166 10244 bytes
SHA-256: 9aa17acb2fcde7f199c4ebb7ccf2346162e7f41c2712b7eac378b3996ebe3e4e

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