Malicious PDF — malware analysis report

Static analysis result for SHA-256 adec47df73df1fb6…

MALICIOUS

PDF

54.3 KB Created: 2020-08-20 20:01:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: efbbc24118e1b21a60304b6e4284de00 SHA-1: 4f6befd4a05ebc1d7dfd944d9e348232d4016fc8 SHA-256: adec47df73df1fb6c349e37d8924ad079b206c0dd3f6429e81bd15f5932433b2
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) known to host malicious content. The ML classifier strongly flagged this PDF as malicious. The document body itself contains garbled text but includes the same redirector URL and a large number of Shopify-hosted PDF links, suggesting a link farm or redirection tactic to obscure the final malicious destination.

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=additional+directorate+general+of+public+information In PDF document text
    • http://xazidelug.preppantherplace.com/uploads/1/3/2/3/132302868/1542293.pdfIn PDF document text
    • http://files.jeffersonhealthcarefoundation.org/uploads/1/3/1/4/131406434/tasowinegif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5387/4329/files/79889138814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/kajenogakogobapuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5624/1557/files/daxisopijanolubuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0757/8009/files/diccionario_biblico_mundo_hispano_completo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4077026649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/jixedigozunudetuwugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/5242100803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9772/6880/files/autorun_virus_remover_free_full_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3227/9200/files/xudividasodefupojodisewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1780/3675/files/minutes_of_meeting_template_free_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/lenefabopidatewux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8123/6634/files/formulas_and_functions_in_excel_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/rpg_maker_mv_igg.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

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6F 5308 bytes
SHA-256: 59fb0707d602ecb3ff617a9c489674ca61e191fb143c8e40ef188a5084cca5cb
font_01_sfnt_off00007e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E54 2992 bytes
SHA-256: 33d97028d68f0957366efb264fed584e627883d0ed8d7b6e5df29d85e1c6ae65
font_02_sfnt_off000089e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E7 10912 bytes
SHA-256: 320c0f6dbfdd4fb706939414851fdfaa6836a59c4a22fca472bc2c352548df8b
font_03_sfnt_off0000af11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF11 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
font_04_sfnt_off0000bd11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD11 3648 bytes
SHA-256: 8c5adaac28a1b9c3a2b09723a54d1e456a4011b4b59c680fd5a5160d8dd010de