Malicious PDF — malware analysis report

Static analysis result for SHA-256 25a061258b39a254…

MALICIOUS

PDF

72.7 KB Created: 2021-03-02 09:46:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6fb793127fb3570019e5ab2f5eb82a70 SHA-1: b5c41dd5b32d2512edd6e9c5f073f1e248c445dc SHA-256: 25a061258b39a254662429675fe7c180e7c26fbdb5874b647d05565ebbb67fd9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://golowaki.ru/award?keyword=what+makes+a+metaphor+effective PDF link annotation
    • https://cdn.sqhk.co/nuponoviva/GWpJphb/fenoxaxok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484807/normal_602a113a0ea97.pdfIn PDF document text
    • http://gewututikame.getenjoyment.net/50765619736.pdfIn PDF document text
    • https://cdn.sqhk.co/zenetofuma/lifjeeU/city_run_game_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404745/normal_5fd7db94aae28.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/gHSS4gi/fedorulegomotoja.pdfIn PDF document text
    • http://juwupexutaval.mywebcommunity.org/71861305513.pdfIn PDF document text
    • http://itfamily.info/astm_standards_for_tensile_testing_of_polymer_composites7zxkv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530578/normal_5fd932702af49.pdfIn PDF document text
    • https://cdn.sqhk.co/vasegodesazu/hihchci/fewifijepisumefale.pdfIn PDF document text
    • http://geloritiveda.mygamesonline.org/biwenilitewurik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ligoroxenafof.atwebpages.com/how_does_globalization_affect_communication_and_the_world.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/51766442078.pdfIn PDF document text
    • http://bexukavibume.myartsonline.com/artemis_fowl_book_1_cover.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/junisujemuvuruxixugibe.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/dopefomapetelaju.pdfIn PDF document text
    • http://tuxabatadifu.onlinewebshop.net/70357945634.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_off0000e128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE128 5360 bytes
SHA-256: 61ba3398622e36122c5900f14cfa322a84e988f5b35674c36ce93befaf30ab27
font_01_sfnt_off0000f34d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF34D 10184 bytes
SHA-256: 19474482e708469657ec5143bb209b587d83044b490f8a98c62a9c5367f55ac3