Malicious PDF — malware analysis report

Static analysis result for SHA-256 8117f0d1549fd780…

MALICIOUS

PDF

64.6 KB Created: 2020-08-22 02:29:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c9df2343bdc3599868fbfb7cb35cc53 SHA-1: cbb14dc8570b861abe727ab4d56e85256f134338 SHA-256: 8117f0d1549fd780ed143e308ab557d3a5fe53d2d5dff41fb6bc7f7c27c24225
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high number of external links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that aligns with the identified redirector. This suggests a phishing or scam attempt to redirect users to malicious content.

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=accelerator+sub+indo In PDF document text
    • http://nofeluv.centerponddistrict.com/uploads/1/3/2/6/132683286/sabiz.pdfIn PDF document text
    • http://namij.glenagould.com/uploads/1/3/0/7/130739591/pifujawafupubafe.pdfIn PDF document text
    • http://mivedotu.scenesofvirtue.com/uploads/1/3/2/8/132815806/3824681.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/1/0428/3033/2070/files/cg_vyapam_patwari_2020_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/86611066422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/gimopasedisawiled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4414/3253/files/biodiversity_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7966/3765/files/kubota_diesel_engine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6931/7013/files/jutunuvogelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54313135065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0497/6548/files/mexivad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3431/9776/files/duzuzelovodutula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/korepatebejoxoxodajedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/administrao_estratgica_e_vantagem_competitiva_barney.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/88236979196.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000675d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675D 26944 bytes
SHA-256: ac0c61521e375d2d15f88a4e646ffb3aea5b8ed58d0e638b369b0e622d0b8c97
font_01_sfnt_off0000bb0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB0B 5060 bytes
SHA-256: 985990ff0c1cab196eaece773b859319aae4f0a6a77287af6c8fc620edb3eac4
font_02_sfnt_off0000cc39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC39 12856 bytes
SHA-256: e561dafb1d4cf67fc2d39958f16cc0d9ebb3ff30c21bf37a1c29cc1aff53ef28

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