Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9d792dff35e6e18…

MALICIOUS

PDF

40.1 KB Created: 2020-08-28 03:00:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b33309b414ce16364f1df4fa4be11b1c SHA-1: 1ff6e31855fa15f6422d2a2a558e8bb2dc313be3 SHA-256: f9d792dff35e6e187c8aa0b44db55988c031aa890a76b479bdd87081f2b3f1ed
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=galactic+civilizations+iii+guide'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on shopify.com. The ML classifier also strongly flagged this PDF as malicious. The presence of these elements indicates a social engineering attempt to direct users to malicious infrastructure.

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.ru/pify?keyword=galactic+civilizations+iii+guide In PDF document text
    • http://files.nod-production.de/uploads/1/3/0/7/130775465/c4926.pdfIn PDF document text
    • http://files.pnagkc.org/uploads/1/3/1/4/131438891/juvoxasomas.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/1/0465/9521/1429/files/judinekewipatololeluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/29529575765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2432/6564/files/36415137167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4945/8591/files/examen_de_6_grado_de_primaria_1_bimestre_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1168/1958/files/algorithme_informatique_exercices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9409/6539/files/botw_hyrule_bass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3856/files/98300767290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1167/8114/files/49447777903.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_off00005ee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE9 5152 bytes
SHA-256: bde50bf160ba8bfad199218dd9e6a1934614989a6bd36042236db1e0feda286c
font_01_sfnt_off00007097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7097 10380 bytes
SHA-256: 5f803645edf273f3fa10c5dc777b67a97ef6e20124a4c27b11ad38862090bb61

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