Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d1d0735952c8f3…

MALICIOUS

PDF

75.2 KB Created: 2021-02-04 17:17:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 12d21ca7d3043f82d4953a3d8d244bb7 SHA-1: 74091a44fe0baba68a7fafa8d06c9601eb7780d0 SHA-256: 07d1d0735952c8f330d6fe358d0623bdb6d2aab62aecfe6e00684836fcd36ff6
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • 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://jacksth.ru/wb?keyword=calabash%20riddim%20instrumental PDF link annotation
    • http://zewenidasi.iblogger.org/ancient_history_books_free.pdfIn PDF document text
    • https://cdn.sqhk.co/vozumolajaw/EuchjIC/ridezu.pdfIn PDF document text
    • http://jobs-ingenieur.best/950727760753yoy8.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/7C3zUol/tamowuwababigob.pdfIn PDF document text
    • https://zuzivosojix.weebly.com/uploads/1/3/0/7/130775151/pavisakupul.pdfIn PDF document text
    • https://ginamelemu.weebly.com/uploads/1/3/4/6/134624442/705506.pdfIn PDF document text
    • https://tiforunu.weebly.com/uploads/1/3/1/4/131437018/garewoxapono.pdfIn PDF document text
    • http://bestsaleshopin.xyz/rush_hitam_20186s3cy.pdfIn PDF document text
    • https://cdn.sqhk.co/mibajufaneja/45jftkV/webasojawabo.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/iKRLVhb/ikea_philippines_skyscrapercity.pdfIn PDF document text
    • http://gaydating.world/yamaha_psr_640_manual7eb4i.pdfIn PDF document text
    • http://tehnopolis.org/1169806483602puy.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/SiiZgeu/baseball_9_game_tips.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/bggrgiA/7557864994.pdfIn PDF document text
    • https://gebijodefilamoz.weebly.com/uploads/1/3/1/4/131406109/zasekabijo.pdfIn PDF document text
    • https://legutuxubumid.weebly.com/uploads/1/3/1/8/131872058/8e1258e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mutifitiwexo.epizy.com/diagnostico_de_anemia_gestacional.pdfIn PDF document text
    • http://juwiwigepumer.rf.gd/98281151900.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_off0000df46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF46 5108 bytes
SHA-256: 4462842ebc3f3fadfd6d58d3222c4d8d5b23a04edb0c905a8f84aa914e02862f
font_01_sfnt_off0000f06a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF06A 15248 bytes
SHA-256: 109a0e71b9bb1442dd3148042c2515b67d6b320a4e7c4ae35d7b2651ce790ce1