Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d1ce30134b933f…

MALICIOUS

PDF

57.4 KB Created: 2020-10-26 07:44:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-27
MD5: ed56a06dae403028b838df0ac08830df SHA-1: 3e6c54c5713db4e024f4e8b35c06e3c98e33fd2b SHA-256: c5d1ce30134b933f4326b8ad519a734453a2ada015dce82f4400e1997f3a0cde
184 Risk Score

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/wb?keyword=rainsoft%20gold%20series%20owners%20manual In PDF document text
    • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/d54f4d96cedca1.pdfIn PDF document text
    • https://nitiruminaxodax.weebly.com/uploads/1/3/0/7/130738633/vigosojaxamagetabir.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/wavodowebipuv-kuxalu.pdfIn PDF document text
    • https://bizetuxerupa.weebly.com/uploads/1/3/0/8/130873791/dejomuwuruw_gawivameloke.pdfIn PDF document text
    • https://luketekovagitor.weebly.com/uploads/1/3/4/2/134236109/gudamokatebo.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/cf3fc542d3ad.pdfIn PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/780902e3b73614a.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/kewunoxapavolipuxas.pdfIn PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/jutile_wunanefoxulij.pdfIn PDF document text
    • https://wosezobar.weebly.com/uploads/1/3/1/8/131856012/wuvoseje.pdfIn PDF document text
    • https://vunixumo.weebly.com/uploads/1/3/1/4/131453253/xitisofutorafebun.pdfIn PDF document text
    • https://ximinelinax.weebly.com/uploads/1/3/4/3/134313791/70d9a37cbdef03.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bidivo/calories_in_south_indian_food.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/jurnal_penelitian_akuntansi_manajemen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5713/5264/files/wonatib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/6268/8427/files/72618344834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/2986/2816/files/soon_i_will_be_invincible_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3876/1109/files/download_webtoon_apk_free.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B3F 5324 bytes
SHA-256: 3def258ce124412204330cf9acf583716d6d17d38e8fda901b60fd32a7b07723
font_01_sfnt_off0000ad5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD5A 12316 bytes
SHA-256: 0baa3ef3f4c2891f45a49b3e7f51b99dd6f6f3a5af2200a9cc72d6d84bb65a17

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