Malicious PDF — malware analysis report

Static analysis result for SHA-256 86c3bdc0296dab30…

MALICIOUS

PDF

55.5 KB Created: 2020-08-17 06:50:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48ee146275bba74401392c1342652c09 SHA-1: 917109f7593d1f5a2f2ce62d4a2618f3307b6298 SHA-256: 86c3bdc0296dab30fb0f55d4a1fba1e49bf07023f137a4d07f72b557614717b6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic firing indicating it's a redirector to known malicious infrastructure. The primary redirector URL is 'https://ttraff.com/pify?keyword=c+function+template+specialization+multiple+parameters'. This suggests the document is designed to lead users to malicious sites, likely for phishing or to download further malware. The ML classifier also strongly indicated maliciousness.

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=c+function+template+specialization+multiple+parameters In PDF document text
    • http://files.daankahmann.com/uploads/1/3/1/8/131856112/4447374.pdfIn PDF document text
    • http://kipibili.sweetbstoggs.com/uploads/1/3/1/3/131379945/venofekifenuroxelubu.pdfIn PDF document text
    • http://files.amlrcsweeps.com/uploads/1/3/2/6/132681632/3691537.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/1/0429/6530/3455/files/90449552407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/dimab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/60908802873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuvekalododit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1485/6610/files/24293706036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/38146191290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/pokemon_games_for_gba_roms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7793/8855/files/pdf_to_word_converter_software_full_version_with_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0531/2163/files/64730078393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/dasimesopul.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 2

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_off00008c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C45 5116 bytes
SHA-256: 44910d7b3a32e22c7611382149ec11e2a93c6d91848ac447d59e67cf1c767dad
font_01_sfnt_off00009d99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D99 16564 bytes
SHA-256: c37d8089f4e59537bbb976bc987f7a6ba7151b067dfb9b8508565d80258d1588

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