Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c9665b8d3c971f…

MALICIOUS

PDF

75.3 KB Created: 2021-01-19 03:51:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-05
MD5: b91c42869e373679cd32fb7fe8e87fef SHA-1: 1af7b5ce5b2bc7a6376fcda0b06a3a9ffe4242d7 SHA-256: f0c9665b8d3c971fafa2e5edf9eb8c177caf24796d39ea7942c7c47d9dd10822
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/wb?keyword=streamer%20life%20simulator%20free%20download%20steamunlocked PDF link annotation
    • https://s3.amazonaws.com/vidadaviwal/perkawinan_beda_agama_di_indonesia.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382201/normal_5ff6a8739e82b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370299/normal_5f9c7b638f20c.pdfIn PDF document text
    • https://cdn.sqhk.co/vasegodesazu/GgfzQja/kigobufoliworivel.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/bland_diet_food_list.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/wurapodiselowumirofavatep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365613/normal_5f8a4373d50f7.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/rifivoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392861/normal_5fef458020e8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373008/normal_5fa38015412fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428043/normal_5fa992fcac3cb.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000cee8.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000cee8.bin)
    • http://www.daltonmaag.com/In extracted file (font_03_sfnt_off0001116c.bin)
    • http://puwagof.rf.gd/vefutun.pdfIn PDF document text
    • http://gijifosunusu.epizy.com/noxefoxaxiragowiba.pdfIn PDF document text
    • http://totofexux.epizy.com/76367296921.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 extracted file (font_00_sfnt_off0000cee8.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEE8 5308 bytes
SHA-256: d1ac5b25fc57743a27b36438d9ee76cbe044b1ac059b28beaa2de16a37fb4a35
font_01_sfnt_off0000e0dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DD 1800 bytes
SHA-256: 0c461b6989a4510bb0dba94f091e94faebec969b033ca5d4e42fda3db49c9bb2
font_02_sfnt_off0000e96a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE96A 12476 bytes
SHA-256: 7388287fe3196e0d43e21814f665984193b15c1e4150df0bba0021f144b0dc4b
font_03_sfnt_off0001116c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1116C 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c