Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc5d5d39a9d719a7…

MALICIOUS

PDF

53.6 KB Created: 2020-08-22 02:57:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: abb629b0be7757900802cbace7b41f2a SHA-1: f6d2574e11a11b2d0da179714777f7a41503bf0f SHA-256: cc5d5d39a9d719a778faaf4f620bc563faf885848a05ec480ecef48d46984e43
162 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identifies a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to malicious content. The presence of many external PDF links, including one hosted on cdn.shopify.com, suggests an attempt to manipulate search engine results or distribute further malicious payloads. 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=ganpati+aarti++bestwap In PDF document text
    • http://files.gwgproductions.com/uploads/1/3/0/7/130775195/55cad2e5f02f8e6.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/1/0435/4703/3752/files/telebonamazutoxorukogera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2329/3864/files/altered_traits_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1861/5975/files/ffxiv_act_plugin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6133/8531/files/dewozivugerevufuzuzupuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/balancing_equations_challenge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/libros_de_autolesion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/orange_in_rgb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7020/1760/files/ladomesusaroxukeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8216/1053/files/christ_college_bangalore_uniform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2715/2539/files/60083955968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/xodumamusitaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6073/1808/files/aapc_cpc_study_guide.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_off00008ea6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA6 5044 bytes
SHA-256: 62b37158b8fb14863c5bbdca3ed1cb440b216e900e29e140035bff09e80e6ac8
font_01_sfnt_off00009fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FEE 12864 bytes
SHA-256: 280042d5803928a63b3eeda82fff6f46617dcc6a5360a551ef120d7a4c0410ef

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