Malicious PDF — malware analysis report

Static analysis result for SHA-256 783bb292c31de65d…

MALICIOUS

PDF

64.1 KB Created: 2021-03-01 15:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 808a0a72cd73dc664bed8096aafc7d06 SHA-1: 2849c0a24e94992bcbd88622007bedf18a193c2c SHA-256: 783bb292c31de65daaac9388c264d5deb4f2f697e02443bf6e493f7af2bb7f43
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://golowaki.ru/wb?keyword=how%20do%20i%20turn%20on%20my%20garmin%20approach%20s60 PDF link annotation
    • https://jegivobepumo.weebly.com/uploads/1/3/4/4/134444156/ximixisebok.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/covid_test_delivery_jobs_liverpool.pdfIn PDF document text
    • https://noxolawozin.weebly.com/uploads/1/3/1/4/131452883/weganed-toravabetokeko-savaxoratanani-tijuzoxiruma.pdfIn PDF document text
    • https://cdn.sqhk.co/bamazaludez/aiYrji7/totejutosodorizi.pdfIn PDF document text
    • http://love-cosmetics.shop/87431504509ch7r1.pdfIn PDF document text
    • http://shopee24.site/ice_skating_ballerina_dance_challenge_arena_apkpjdvj.pdfIn PDF document text
    • https://cdn.sqhk.co/tabewinudeka/eigzUgi/nedamumusinofamavuwakego.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503035/normal_603c133d15838.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385216/normal_5fe76aef44e31.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367000/normal_5feeb17c24bea.pdfIn PDF document text
    • https://cdn.sqhk.co/bozogekeji/hht3fia/nathalie_ballout_age.pdfIn PDF document text
    • http://klosheff.xyz/antigeno_prostatico_2017ntesn.pdfIn PDF document text
    • http://loneresel.mygamesonline.org/48728196069.pdfIn PDF document text
    • https://cdn.sqhk.co/fotajoge/hesKSUh/vasovojajamafawalefigezo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gajopule.myartsonline.com/87501323662.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_off0000c11c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC11C 5904 bytes
SHA-256: 4efe884eb049bebdcc330bf93ff5685029cc66b956d8e1713c379f2a0236a095
font_01_sfnt_off0000d523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD523 8856 bytes
SHA-256: 9df0e9d992176d8cbc4068accc465e343e121298de1db000414efd2fa774ef93