Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd773f35bc21a6ac…

MALICIOUS

PDF

69.0 KB Created: 2020-12-13 17:13:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 05025261b89eabd378231fd32cdf8128 SHA-1: 7762116603212bb1d91202daeb60b1af7f26f3d5 SHA-256: cd773f35bc21a6ac3942f3a8520fc709bade4e9d4060fa9a9162e62c56ffacf0
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://trafffe.ru/wb?keyword=osrs%20fishing%20guide%201-%2099 PDF link annotation
    • https://suzitarux.weebly.com/uploads/1/3/4/6/134683800/6b60819.pdfIn PDF document text
    • https://jewadasin.weebly.com/uploads/1/3/4/6/134604584/7725443.pdfIn PDF document text
    • https://mitenipup.weebly.com/uploads/1/3/4/3/134363071/jufimuvu.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
    • https://uploads.strikinglycdn.com/files/e9157789-c8cb-4107-8a15-56b0a876c25b/nikon_buckmasters_ii_3-9x40mm_bdc_reticle.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/11391644701.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30436c3c-1cd9-46d4-abe9-39de192a0b2a/dupetezovawejapozujuremox.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/adventure_travel_guide_job_description.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe1264f3de5e49b52be3db/1606292068955/administrador_de_dispositivos_iphone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3e7895e-233e-4a5c-b635-c22e15c64bd5/interpersonal_communication_kory_floyd_3rd_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/3531688983.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47843a9c-6ff7-4ef4-8638-5ac0519bcada/20035246923.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/jisoxelekinixunob.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/how_to_read_latitude_and_longitude_on_a_sectional_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/sulupofivizuvepunusiw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B3 4888 bytes
SHA-256: b5d91cefab21036e928409d4e19afd6a71b70319362934d52ffc9dd1dc4a9337
font_01_sfnt_off0000d64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64B 10296 bytes
SHA-256: 5c954b2613d3f9b07255519306f90b69446d8178d269550054e7a17ff13ad75c
font_02_sfnt_off0000f951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF951 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c

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