Malicious PDF — malware analysis report

Static analysis result for SHA-256 2631601de2a2ad1f…

MALICIOUS

PDF

63.0 KB Created: 2021-02-15 02:30:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 29515ce940ee9c627aafa593406cf310 SHA-1: 651cf53ce4209080d9931aab0ba39c4087ce0ac5 SHA-256: 2631601de2a2ad1ffec689057cb62cb822ac6fde9e3fa516b0cd16f2ffffc500
186 Risk Score

Malware Insights

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

This PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or SEO spam campaign. The primary URL points to a search result for 'rocket league trading guide google docs', indicating a lure to drive traffic to potentially malicious or ad-filled websites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=rocket+league+trading+guide+google+docs PDF link annotation
    • https://kulojimafad.weebly.com/uploads/1/3/4/5/134518235/7520803.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476943/normal_5ffd5367c8348.pdfIn PDF document text
    • https://dudakodut.weebly.com/uploads/1/3/4/4/134497067/segifofexe_bojikuzigo.pdfIn PDF document text
    • https://babotiditufo.weebly.com/uploads/1/3/4/6/134694550/gifanulixuv.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/TDiPji1/fuzakuboverapererev.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/cAcbvgj/weed_wacker_cordless_amazon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404980/normal_5fdb29f4064da.pdfIn PDF document text
    • http://masozaxo.22web.org/66329781772.pdfIn PDF document text
    • https://cdn.sqhk.co/pizokifuxe/rIchcgg/art_therapy_colleges_in_florida.pdfIn PDF document text
    • https://rogujodur.weebly.com/uploads/1/3/4/8/134899240/8bfbe8b12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462096/normal_5fff3ec2dabe9.pdfIn PDF document text
    • http://borutafag.66ghz.com/augusto_cury_books_in_english.pdfIn PDF document text
    • https://mazekijaxok.weebly.com/uploads/1/3/1/4/131453602/latem.pdfIn PDF document text
    • https://sadejakudabad.weebly.com/uploads/1/3/5/9/135965210/ludurilubatiz.pdfIn PDF document text
    • https://latitatuforuza.weebly.com/uploads/1/3/1/3/131398212/dobaxi-dumisasapase.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425504/normal_5fdbe0c3c9d77.pdfIn PDF document text
    • https://wikifepum.weebly.com/uploads/1/3/3/9/133986434/rederebozalaf_lokerujikusigix_bozagakedixope.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rizukapusapanom.rf.gd/remedies_for_breach_of_trust.pdfIn PDF document text
    • http://jimuxilobu.rf.gd/soundcloud_for_pc_filehippo.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_off0000ba79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA79 5180 bytes
SHA-256: 02c073b3b767fa375afc432b2083e090b36a7d54ac18ac4f8c78fd09805390ae
font_01_sfnt_off0000cc2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC2C 10080 bytes
SHA-256: 05523bd0ac6680d63f1ecc93befaf9edc07c094c0aa66edc5b711797b5c68d85

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