Malicious PDF — malware analysis report

Static analysis result for SHA-256 f719e4c79cfd4273…

MALICIOUS

PDF

53.1 KB Created: 2020-08-06 11:32:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06bad02295103bd4f1bc9b27280bb563 SHA-1: c2168213e667eb60f1c2a64682c2296f065e95ca SHA-256: f719e4c79cfd427308e7f2ea4ef4706115c23cfde62d2b6ac2c297bb533ebc46
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised with a seemingly legitimate document title. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the presence of a malicious redirector is sufficient evidence 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.cc/pify?keyword=attestation+sur+l+honneur+de+prise+en+charge+pdf In PDF document text
    • http://tiripov.alphasigmaindkg.org/uploads/1/3/0/8/130874038/lopitajigeworo_tumafum.pdfIn PDF document text
    • http://files.hard2faze.com/uploads/1/3/0/7/130739247/c45010f4c.pdfIn PDF document text
    • http://ziweg.edwardoriginals.com/uploads/1/3/1/4/131408024/5042927.pdfIn PDF document text
    • http://libuzosu.fishandswallowproductions.com/uploads/1/3/1/3/131380485/vovus.pdfIn PDF document text
    • http://files.dadonkeyonline.com/uploads/1/3/1/6/131607407/mulekojunil-gigas.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/1/0429/5399/8487/files/10837119980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2579/1133/files/midco_speed_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4035/6005/files/21993922224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4204/files/varaxigokemuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/firujidopadotitariripuxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3448/3616/files/77027620193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/98824415791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2155/0247/files/genudosojama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1608/5923/files/17081232115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4230/8250/files/viwijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/80217856443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/wudimojewejusunugatevola.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 3

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_off00007f7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7B 5408 bytes
SHA-256: 23be7caeed1e8ff24f407d3a0c6f845e751c735162441d2aa6f2cf68aa5c0afb
font_01_sfnt_off000091d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91D7 17036 bytes
SHA-256: 7c5a74cce0f24c54661e8b8f9a2837db13e82081c9c6c06d40c1f51146a18658

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