Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7c088ec481e51f…

MALICIOUS

PDF

76.2 KB Created: 2021-01-12 08:54:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: ccc2a6a71e7f7dec0dabe9671c3fff79 SHA-1: b80f8e8fedaf514ea7daa99ab687c62bb6e4012c SHA-256: cd7c088ec481e51f1dbc20c5232c62de9a705b2297afed40cb77df63e4262a79
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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 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.
  • 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://traffking.ru/wb?keyword=vitalsource%20bookshelf%20not%20loading In PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/2886072.pdfIn PDF document text
    • https://site-1180490.mozfiles.com/files/1180490/download_bullet_man_3d.pdfIn PDF document text
    • https://fulafokowezoje.weebly.com/uploads/1/3/4/3/134384829/fumexul.pdfIn PDF document text
    • https://mokoluwi.weebly.com/uploads/1/3/4/5/134595511/renif_zuwediposafi.pdfIn PDF document text
    • https://site-1175150.mozfiles.com/files/1175150/vidafedututojisakiwumi.pdfIn PDF document text
    • https://site-1176551.mozfiles.com/files/1176551/tiktok_starbucks_drink_white_mocha_caramel.pdfIn PDF document text
    • https://lorebigida.weebly.com/uploads/1/3/4/3/134377432/2b27de30.pdfIn PDF document text
    • https://site-1168360.mozfiles.com/files/1168360/dual_fuel_inverter_generator_canada.pdfIn PDF document text
    • https://site-1177606.mozfiles.com/files/1177606/93636624428.pdfIn PDF document text
    • https://duxujemiw.weebly.com/uploads/1/3/4/7/134743688/kexujivejawupij.pdfIn PDF document text
    • https://site-1168501.mozfiles.com/files/1168501/16025542404.pdfIn PDF document text
    • https://dopikilazobowu.weebly.com/uploads/1/3/4/4/134488506/dodosunomerenox.pdfIn PDF document text
    • https://kukuziso.weebly.com/uploads/1/3/4/4/134468315/0210d6fde11dfa.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/bakoloj/33789212194.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_off0000ddf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF0 5336 bytes
SHA-256: 9beeffb99aef8fcdd0806882eedbf1d21de622e62950771663f21d0d9f7d867e
font_01_sfnt_off0000f006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF006 10880 bytes
SHA-256: 37e6cd84e734844c26bc8823259c5f87de0b193c38b98f6e09250fe4650b9e6e
font_02_sfnt_off00011539.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11539 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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