Malicious PDF — malware analysis report

Static analysis result for SHA-256 6322eb50a0ac06f7…

MALICIOUS

PDF

74.8 KB Created: 2021-03-21 21:47:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f002ebacb71ca87a4d5d5bd17707cd21 SHA-1: 72b4d9951ae170ab8aac2815c3b8a017b549862e SHA-256: 6322eb50a0ac06f77313773cc8a802de9fe68162d57a7755f68b3d5c00ef4988
186 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a common tactic for link farms used in phishing or to distribute malware. Heuristics indicate it's a link farm on disposable hosting, and ClamAV detected it as a phishing trojan. The embedded URLs are likely used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://soxebez.ru/aws?utm_term=the+last+leaf+extra+questions+and+answers+pdf PDF link annotation
    • https://cdn.sqhk.co/lirebirab/f7eicyQ/37168455351.pdfIn PDF document text
    • http://nuwojukow.mygamesonline.org/sustainable_building_design_manual_teri.pdfIn PDF document text
    • https://cdn.sqhk.co/toneribabut/rX3Nhi4/hssc_clerk_answer_key_22_sep_evening.pdfIn PDF document text
    • http://lebedugipul.mywebcommunity.org/cell_cycle_checkpoints_and_regulation.pdfIn PDF document text
    • http://sixesijilolun.mywebcommunity.org/9525716530.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424996/normal_5fcd525a77392.pdfIn PDF document text
    • https://cdn.sqhk.co/zijigemeworu/c5A8Gjd/reversible_sherpa_jacket_sanctuary.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383573/normal_6019ff835c13d.pdfIn PDF document text
    • http://bulibujirifubof.scienceontheweb.net/apprendre_le_russe_lecon_1.pdfIn PDF document text
    • https://pazumufavizup.weebly.com/uploads/1/3/4/5/134506393/jawudusel.pdfIn PDF document text
    • https://pizazolumugi.weebly.com/uploads/1/3/4/0/134016987/6015571.pdfIn PDF document text
    • https://cdn.sqhk.co/xonaruvipiti/hGjgEhg/57491312800.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvatagukas/hhdjhLs/civilopedia_6_francais.pdfIn PDF document text
    • http://bizifemodefi.mygamesonline.org/jiwujelabawanizudegoname.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421207/normal_60534af7ccf1c.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/jhejibZ/umc_zorgverzekering_valt_onder.pdfIn PDF document text
    • https://bibuzutevokad.weebly.com/uploads/1/3/4/6/134634257/degefekujexasagunoz.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/CsaOhdD/77800013952.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vujuvisesakok.myartsonline.com/guitar_grimoire_exercise_book.pdfIn PDF document text
    • http://vibirokudod.myartsonline.com/seek_and_destroy_bass_tab.pdfIn PDF document text
    • http://dozopedatofol.atwebpages.com/descargar_biblia_reina_valera_1960_para_android.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e56f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE56F 5364 bytes
SHA-256: 0bcb96a760309550bd733bced895c73f9cd19a166d5667da7592964c8105674d
font_01_sfnt_off0000f7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BE 10728 bytes
SHA-256: abdb7388db231b09382a9a03cea9c9cc1322320c650886a1ab7f37187494498f