Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d4cb35730aaa49…

MALICIOUS

PDF

89.8 KB Created: 2021-01-18 00:43:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 7566db60d95c07c8d9aab7412d0bccb9 SHA-1: 1effb1808ded9d917af23e370598a8011fd2cdb6 SHA-256: c5d4cb35730aaa491c055c3d1bf29db82e2fffcd347421d00f8b403a81df5101
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://ggtraff.ru/123?utm_term=hxh+dark+continent In PDF document text
    • https://static.s123-cdn-static.com/uploads/4483097/normal_5feb350ac497f.pdfIn PDF document text
    • http://juzajikadig.22web.org/bpsc_ae_pt_syllabus.pdfIn PDF document text
    • http://lulumel.66ghz.com/bindiya_chamkegi_song.pdfIn PDF document text
    • https://sizukejagu.weebly.com/uploads/1/3/2/6/132681884/9616277.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378608/normal_5f8ef59832b4f.pdfIn PDF document text
    • https://cdn.sqhk.co/pimidima/HkDggih/tijatakavenuzomuwanedalol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385004/normal_5f939a7f348dd.pdfIn PDF document text
    • https://wowumasoz.weebly.com/uploads/1/3/4/3/134310839/806156714.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455657/normal_5fb48625a6147.pdfIn PDF document text
    • https://cdn.sqhk.co/karopepagu/cuPo1s6/72632326594.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480145/normal_5fd057321f6ef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392872/normal_5ff4db9490973.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419430/normal_5faa702c1edb7.pdfIn PDF document text
    • https://buxexemap.weebly.com/uploads/1/3/4/8/134890763/3979910.pdfIn PDF document text
    • https://nisikigibifug.weebly.com/uploads/1/3/0/8/130813528/261ad2.pdfIn PDF document text
    • https://cdn.sqhk.co/keliziniw/cd72gfM/police_car_siren_download_mp3_pagalworld.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/lomogas/third_conditional_perfect_english.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/cloridrato_de_metformina_850_mg_preo.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_off00011137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11137 4932 bytes
SHA-256: f6a65f1ecf3e455890f3ae6ec97e2ba1c285e417949f3e4086adb27d797982ca
font_01_sfnt_off0001225c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1225C 4908 bytes
SHA-256: 1482d8cfbef815b8bd6902a1582f575d141767e609adbf4bf8c3bf3f7c5ba8ec
font_02_sfnt_off00013305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13305 10840 bytes
SHA-256: e4d972d7578c54d782d61aed7ea3cc463d28f1ea174e13b35e5e88a4e4d0873b

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