Malicious PDF — malware analysis report

Static analysis result for SHA-256 af22cda120537a7f…

MALICIOUS

PDF

74.6 KB Created: 2021-01-06 13:31:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 4cbaf2aa8055b3a5369f7569d21484b8 SHA-1: 8536bfa9800042f3a7ba0f6244a0b5c231f411b1 SHA-256: af22cda120537a7ff8f233d55e18317e2a3e257a77777d062ea826d7d403c755
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://traffking.ru/wb?keyword=wire%20size%20calculator%20voltage%20drop In PDF document text
    • https://cdn-cms.f-static.net/uploads/4451755/normal_5fa939fc82c38.pdfIn PDF document text
    • https://cdn.sqhk.co/vizinifum/CggjelH/acrylic_nails_shapes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371799/normal_5fe01eab7cc73.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388611/normal_5fefec4a47836.pdfIn PDF document text
    • https://zikawudewodag.weebly.com/uploads/1/3/4/5/134585044/f47c4c4206b6.pdfIn PDF document text
    • https://cdn.sqhk.co/naxisedomak/aWgegdh/super_idle_hero_lumberjack_adventure_pigeon_forge_tn.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://s3.amazonaws.com/felasorarabipis/rupekoluxexekelo.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/44328460934.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba307702-b592-4f24-b923-0736f698ee12/tvytelenovelas_2010_escalona_capitul.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/beetle_crazy_cup_full_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb59a1c7-f36c-4f96-a941-55b68b6e2296/online_scanner_to_scan_documents.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_off0000d4bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4BD 5140 bytes
SHA-256: 56c558319b24256c995422e62087e558142d3c1b7d4da6645bba7f811828cb8d
font_01_sfnt_off0000e665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE665 12300 bytes
SHA-256: c609109dcf6183aae5c38fe7a6efd04b7823ad736f474593db2e8286da82d6fe
font_02_sfnt_off00010fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FBC 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2