Malicious PDF — malware analysis report

Static analysis result for SHA-256 59a1a94a00e61dda…

MALICIOUS

PDF

87.2 KB Created: 2021-03-17 13:20:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4f695a90241fbe24e81c231df1e48745 SHA-1: 08543088421654e68d6c3bddb7ecfdfa00c36ae7 SHA-256: 59a1a94a00e61dda541d732d587a3894a189e20a691cb9162f841d4f5fb5ed3d
126 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable domains and are part of a link farm, indicating a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags this behavior. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or trojan distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://xezojetit.ru/strik?utm_term=music+theory+for+dummies+cheat+sheet+pdf PDF link annotation
    • http://4d-5d.com/61567687312ce34l.pdfIn PDF document text
    • https://cdn.sqhk.co/kobadaxo/7hhZif0/groupme_login_help.pdfIn PDF document text
    • https://cdn.sqhk.co/bivatesiromu/hfBGY8x/nonazix.pdfIn PDF document text
    • http://shtangelkipokupkiitd.online/auto_chess_apk_pczaisx.pdfIn PDF document text
    • https://cdn.sqhk.co/busanurutar/SKja2hf/bending_emt_conduit.pdfIn PDF document text
    • http://bestrongbyg.com/terminating_employment_letter_template2cv8o.pdfIn PDF document text
    • http://vefavirona.22web.org/conrad_koh_samui_trip_report.pdfIn PDF document text
    • http://nubolutlion.xyz/epic_emr_user_manualijywj.pdfIn PDF document text
    • http://winnerslm.space/funny_images_for_whatsapp_status_in_englishne1cj.pdfIn PDF document text
    • https://cdn.sqhk.co/karadirimose/nicSx0Z/32628267461.pdfIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/fikutix.pdfIn PDF document text
    • http://meetsucre.pro/xewinebisirokobujegag7ovr2.pdfIn PDF document text
    • http://idealica-italy.site/gsap_tutorial7861z.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/kutadida.pdfIn PDF document text
    • http://minomesiguziv.22web.org/diretalapememijupezo.pdfIn PDF document text
    • http://bulenamoj.22web.org/tavobetixokilurepexog.pdfIn PDF document text
    • https://cdn.sqhk.co/dutaxato/ibkgd64/lajanoruwewukivi.pdfIn PDF document text
    • http://businesslinecenter.com/30510886825hk01f.pdfIn PDF document text
    • https://cdn.sqhk.co/zolilobup/g7tzgc7/fruit_smash_starbucks.pdfIn PDF document text
    • http://com-connexion.xyz/58922129463mwkjc.pdfIn PDF document text
    • http://favanitum.iblogger.org/lexunazisukovetilevodokid.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwokosokif/agghigh/3176699238.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11433 5472 bytes
SHA-256: 541ef80bb7848c974d1e1d7ee85a64569adac174d51277c3a4227e869876f47c
font_01_sfnt_off000126b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126B2 11996 bytes
SHA-256: c51dcf1e03de2723e082290893bd6dd7d64bdbfda547d5c94105f688a915258e

Open this report in the interactive analyzer, or submit your own file for analysis.