Malicious PDF — malware analysis report

Static analysis result for SHA-256 d14793e4e2379471…

MALICIOUS

PDF

85.1 KB Created: 2021-03-03 06:01:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 33156f7402fd9298bf4724c71d09cc46 SHA-1: e90bde3ccb33f43d81ff190179bb9dce745cbd3e SHA-256: d14793e4e2379471c4d0b842a46eee82b951886134a81f07a25c2570633b07dc
206 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many pointing to disposable domains, indicative of a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or SEO manipulation. While no scripts were explicitly extracted, the PDF structure and numerous external URLs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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.
  • 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://ponafet.ru/123?utm_term=sims+4+december+2020+broken+mods PDF link annotation
    • http://haustova.com/wf_2630_epson_scaneo5kf.pdfIn PDF document text
    • https://cdn.sqhk.co/ratosakip/ijidXhj/40692883650.pdfIn PDF document text
    • http://hihikane.space/relagukisusiza7mdhk.pdfIn PDF document text
    • https://zukafetovozod.weebly.com/uploads/1/3/1/6/131636890/167b98eeff7.pdfIn PDF document text
    • https://fajasorefasox.weebly.com/uploads/1/3/4/3/134348900/dikedakojurar.pdfIn PDF document text
    • https://tivepikilusu.weebly.com/uploads/1/3/4/7/134759048/8526204.pdfIn PDF document text
    • http://magnitoli-2ekran.site/newblue_transitions_3_ultimate_crackceec2.pdfIn PDF document text
    • https://cdn.sqhk.co/defisepeniba/bHGBjew/segomaf.pdfIn PDF document text
    • https://gozerezujokosas.weebly.com/uploads/1/3/4/8/134856803/tinovodumojug_komajaf.pdfIn PDF document text
    • https://medivurufif.weebly.com/uploads/1/3/1/4/131407406/525357.pdfIn PDF document text
    • https://duzigolanulemo.weebly.com/uploads/1/3/2/6/132680867/8194261.pdfIn PDF document text
    • https://kafomepavazepa.weebly.com/uploads/1/3/1/4/131409794/401e524a.pdfIn PDF document text
    • https://cdn.sqhk.co/lupokuna/a6TwzPg/world_of_darkness_werewolf_the_forsaken.pdfIn PDF document text
    • https://cdn.sqhk.co/bozawenibiwa/gejfia1/26520678321.pdfIn PDF document text
    • https://cdn.sqhk.co/kisasizaro/kifheha/masha_e_o_urso_brinquedo.pdfIn PDF document text
    • https://pevusipifo.weebly.com/uploads/1/3/4/8/134863194/efdd9f7c6f4d76.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mafizili.epizy.com/does_globalization_affect_intercultural_communication_and_why.pdfIn PDF document text
    • http://wexereza.rf.gd/bournes_green_ofsted_report.pdfIn PDF document text
    • http://wupebixa.epizy.com/current_resistance_and_electromotive_force_worksheet.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB54 5512 bytes
SHA-256: 0aa08705e943f1fd1f9ac38d87e4ccf1bfb8c223c8f84827cdb632dfe48258d4
font_01_sfnt_off0000fdff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFF 2744 bytes
SHA-256: c58734b7c43f876d00250fe79027c28030c899bcb97b97a165465ed91b27eb93
font_02_sfnt_off000109a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A9 10988 bytes
SHA-256: ae7145b7d4766b0b57ec1b125ded4e414c90fb18e01915e4ca324cbb12e6f479
font_03_sfnt_off00012f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F4A 16336 bytes
SHA-256: 12aba8d421747cc7b6f64e0779b2b7b17ec51a7e5f572de6077b2104e12ed3a4