Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4295dc67802573a…

MALICIOUS

PDF

45.8 KB Created: 2020-08-23 00:27:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 678b0a62cbe1d09fe710b89c60671c3f SHA-1: 6fc81fb4130b23ad24c671ef0230e730a32e4b9d SHA-256: e4295dc67802573aadf0834cf8c5bfd02d24f338e3f668a1e9484445d43bb893
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a PDF SEO link farm. One of these links, https://ttraff.com/pify?keyword=ps2+iso+games, points to a known malicious redirector. This suggests the document's primary purpose is to direct users to malicious infrastructure, likely for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated, but the link farm and redirector are strong indicators of malicious intent.

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=ps2+iso+games In PDF document text
    • http://tunuragu.apextravelogue.com/uploads/1/3/2/8/132814956/0f32dbbbc.pdfIn PDF document text
    • http://files.sarahulan.com/uploads/1/3/0/7/130739758/mezuxapudeviketum.pdfIn PDF document text
    • http://files.chchgymnastics.com/uploads/1/3/1/4/131482931/23cfe2.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/1/0435/6987/3054/files/third_party_app_store_android_tv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2250/8454/files/wutanoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/13799581496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3040/5535/files/tigumomajawunosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3599/8880/files/pdf_to_dwg_converter_online_unlimited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78299439052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6451/6005/files/97118707034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/10060875567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2476/7400/files/arrugas_paco_roca_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0935/1585/files/vudozasov.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 8

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_off00006b95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B95 5008 bytes
SHA-256: e863852796cf25e19ac7f6d7d4f93b3b6717df8eec8adbb3ba10d16b96e047e0
font_01_sfnt_off00007c95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C95 14952 bytes
SHA-256: 896ec123f4780d5819e1cff61ae82e490078fd9b5054f0c23e89c454bfe8cd14

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