Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3a00f5e21972f9…

MALICIOUS

PDF

68.8 KB Created: 2020-12-07 20:47:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 9c3dd2cd39a948788d164981e9df4ccf SHA-1: 68a66cef4ffc4d08f87d95f85fb1bb0d8b110945 SHA-256: 4e3a00f5e21972f956ae0b4c660c35ab486ecd368b20ee71d234469dce362412
236 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://trafftec.ru/strik?utm_term=sonic+ringtone+download+iphone PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425483/normal_5fbdec52df140.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/9895647.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408873/normal_5f9dcd7fc71b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453730/normal_5fa24863e7772.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/7fb0ab99-cd34-4efb-bef8-21314e9ee041/varalifakunerokosizo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38cca37e-25cd-420d-b1d5-88b3c5deb21d/92630680451.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b218e7aa-8634-49fc-9564-8c479334cb4e/logstash_multiple_inputs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/822c5a65-eed0-4363-bb04-f88634cbc63b/dyson_ball_multi_floor_canister_vacuum_-_bagless_-_hepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dcc167e-012e-40d3-b664-673e3730bc31/5066146005.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0e39243-c456-47b2-a499-1fb19499b99c/6393220863.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f27a21ff-3e49-48a9-b932-8dd6cae2890c/70463085125.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ade42c9-a987-4726-b6a2-2d9a13cb43ce/75960252254.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ffab8139af037645cac7/t/5fc3386b1972c46e3c06aff5/1606629484281/minecraft_secret_rooms_mod_1.14.4.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_off0000c3e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3E7 5140 bytes
SHA-256: 660e26de60b28fd7799e986509f1fc061d4df5f3aec2fc178a2b3177dfdf521d
font_01_sfnt_off0000d554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD554 10276 bytes
SHA-256: 3e5ec24f9b5e67027e1b5555980c04af4e51a129e5d15dafcdc48e31b73d1146
font_02_sfnt_off0000f88a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF88A 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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