Malicious PDF — malware analysis report

Static analysis result for SHA-256 978680089a08311f…

MALICIOUS

PDF

72.8 KB Created: 2021-02-28 02:06:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d68b828a568196ca00cef8bedcffc158 SHA-1: 929520e45fcd36c28c442650cfbfe7e3326292cf SHA-256: 978680089a08311f9b38c35e0965a1a923fd1a6d32e3ad93a60b0d55468fb2a3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://vilenefex.ru/award?keyword=osprey+publishing+artwork PDF link annotation
    • https://cdn.sqhk.co/zuvibabezel/0nfcs9C/zaludaj.pdfIn PDF document text
    • http://goproonly.com/25971723496h3utb.pdfIn PDF document text
    • http://nizavevorupuj.mywebcommunity.org/philosophy_of_mathematics_reddit.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/fe5zggs/rumble_fish_movie_netflix.pdfIn PDF document text
    • http://bibuzikufaje.mygamesonline.org/how_to_use_the_wii_u_pro_controller_on_switch.pdfIn PDF document text
    • http://sufawevugut.mywebcommunity.org/green_dolphin_street_lyrics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479212/normal_5ff996339c7d1.pdfIn PDF document text
    • https://cdn.sqhk.co/sixitigoxeto/KoUjfgg/short_dress_girl_photo_montage.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383334/normal_600ae5b138783.pdfIn PDF document text
    • http://tufuwavaziga.mygamesonline.org/80309244575.pdfIn PDF document text
    • https://cdn.sqhk.co/rezeribevi/2jahhOC/catfish_the_movie_meeting_angela.pdfIn PDF document text
    • https://cdn.sqhk.co/butituguxur/eWhdlQe/yelp_find_food_delivery_services_nearby.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487413/normal_6013c7f37c3c6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zubiluwetij.myartsonline.com/70262934090.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_off0000e17b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE17B 5504 bytes
SHA-256: acd38802801b9b2a51af1c6d4e323f91f43da4315e0b44fa15a50fa40b6f66eb
font_01_sfnt_off0000f43f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF43F 10132 bytes
SHA-256: 0c6e6f771a34aa5fcadfe0faf413b5973202a348b1df4abf8737332b2f1ab1cc