Malicious PDF — malware analysis report

Static analysis result for SHA-256 5863862944e4fe5a…

MALICIOUS

PDF

39.1 KB Created: 2020-08-22 15:54:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bd5a7ab96fb868a31052168373dec6d SHA-1: fa715cf34bc66b343b6c438775adb61b9758f3e0 SHA-256: 5863862944e4fe5aa2576c1e11ada5c7d3b28e51b4eb46360e216dc68517dbb2
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 relevant keyword. The document body, though heavily obfuscated, contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The primary malicious intent appears to be redirecting the user to malicious infrastructure via the ttraff.cc URL.

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=teacher%2527+s+guide+grade+9+science+pdf In PDF document text
    • http://files.expat-ations.com/uploads/1/3/0/7/130776326/negege-nowisuxum-kelutojuzofus-jesanilavotelew.pdfIn PDF document text
    • http://files.guitarsam.com/uploads/1/3/0/7/130738568/3055598.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/1/0428/8829/8659/files/89612454220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/63875589444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8640/5029/files/begok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0821/6487/files/bitumen_road_construction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2800/4507/files/ruxagajowek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/92161478626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/2638/5829/files/android_5._1_1_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1007/1448/files/18863476130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/64952622392.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 1

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_off000059ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59AE 5524 bytes
SHA-256: b720c3b314bcf714e1a5ab1900ea446776edea2191a5510832cc25f47652ea20
font_01_sfnt_off00006c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C73 10352 bytes
SHA-256: 282a66a08a48c06d346de2fb149fdf2af37a5d3fe1aa4ca9b7d831157ae6f34b

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