Malicious PDF — malware analysis report

Static analysis result for SHA-256 289fe77c04c22b4d…

MALICIOUS

PDF

68.4 KB Created: 2021-02-22 06:42:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e2d63bf534a506c8f2bd331caf8b3441 SHA-1: bb2140e6c67e38f542e88a53e1954d2df99de040 SHA-256: 289fe77c04c22b4db75839adb9cfa4f81b939a33d1ce3f76a4b27735df7bc3e9
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://jottigo.ru/wb?keyword=harley%20davidson%20livewire%20specifications PDF link annotation
    • https://cdn.sqhk.co/libavesonon/bNozbfs/my_disney_movie_projector.pdfIn PDF document text
    • https://cdn.sqhk.co/mojupesonon/mgeWhh3/zejarunemawekokabaxol.pdfIn PDF document text
    • https://cdn.sqhk.co/dejuxafe/Xzdhe1P/the_galaxy_survivor_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387567/normal_600918ef50975.pdfIn PDF document text
    • https://cdn.sqhk.co/niserutom/nmgcjhl/69962677574.pdfIn PDF document text
    • https://nobobigo.weebly.com/uploads/1/3/4/4/134403715/7022652.pdfIn PDF document text
    • https://sitoluvumoroge.weebly.com/uploads/1/3/4/7/134762666/a721a45a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424632/normal_5ff2f6a512571.pdfIn PDF document text
    • https://cdn.sqhk.co/modonasuje/hdjbmjg/slime_maker_game_poki.pdfIn PDF document text
    • https://pedodexojur.weebly.com/uploads/1/3/0/7/130775447/2013805.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466165/normal_6003ed60b14ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473619/normal_601af6cd6afaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/16845066011.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/kingdom_animalia_book.pdfIn PDF document text
    • http://wupewujivijulo.epizy.com/10159396765.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_off0000cf58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF58 5364 bytes
SHA-256: 3932f053937a0bd430453507c3806d54ac2551f3ba4159dd33a019abfea33fc7
font_01_sfnt_off0000e1c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C4 10180 bytes
SHA-256: a6a69d10cffb134f6d3f5fd63dc3f8fde30592a62692b1b4a5427be71783c6b3