Malicious PDF — malware analysis report

Static analysis result for SHA-256 15b060cd27ea008a…

MALICIOUS

PDF

80.1 KB Created: 2021-02-21 18:46:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b9f5e9a9807d25922be9042b1eb72a82 SHA-1: 5b7769de50af4c2c216cf4f499c40fc69d41ab5b SHA-256: 15b060cd27ea008a2e5438658c02c82f000af4595ee0c9b91295dc17fc2b909b
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/strik?utm_term=what+sequence+should+i+watch+the+marvel+movies+in PDF link annotation
    • http://world-wild-shop.com/how_to_use_plantronics_headset_c054oo33k.pdfIn PDF document text
    • https://nezivubu.weebly.com/uploads/1/3/1/3/131384481/jukituxivit.pdfIn PDF document text
    • http://slimitalia.space/30828451298tk2no.pdfIn PDF document text
    • http://legendarycraft.ru/japuguwutd5syo.pdfIn PDF document text
    • http://priz24.site/mejunenulyur1r.pdfIn PDF document text
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/2473348.pdfIn PDF document text
    • http://musofiron.ru/biographical_information_about_frances_hodgson_burnettbuezn.pdfIn PDF document text
    • http://pubggaming.online/64784501084o6sxv.pdfIn PDF document text
    • http://creamwalls.space/ircc_find_forms_and_guides6t4el.pdfIn PDF document text
    • https://farunigi.weebly.com/uploads/1/3/4/7/134716297/df4c0f15581c6d.pdfIn PDF document text
    • http://persequenteamsohbet.com/arranging_numbers_worksheets_for_grade_1z8h5t.pdfIn PDF document text
    • http://lnstagrambusiness.com/carrocerias_ganadeiras_molas1ruwl.pdfIn PDF document text
    • http://zavodtriumf.com/cva_wolf_muzzleloader_loadsdn47g.pdfIn PDF document text
    • https://newovedisi.weebly.com/uploads/1/3/5/3/135348170/rubusile_boronurunixeg_gamogijozer.pdfIn PDF document text
    • https://leburivirabilaz.weebly.com/uploads/1/3/1/4/131453170/delomapomawanaj_wonome_lefuruvum.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/lekelepowo/best_android_tablet_deals_canada.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDFC 5352 bytes
SHA-256: 6868b42d67b2aa6f2f8536bddb4aa7b5eec14a78b0a523890fb45ce3109ea0b3
font_01_sfnt_off0001000b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1000B 10740 bytes
SHA-256: 8d2cd756fe8539d361561e0a6d044836691ef05d2f684ab82b754a518dcc13e5
font_02_sfnt_off000124ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124EE 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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