Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba7175ff4b1d820b…

MALICIOUS

PDF

67.5 KB Created: 2021-03-01 05:35:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 19692e692dbf82da1d2b93da00cb9cba SHA-1: a8307a4ee832d5013c5abe98761b0b9b016fd062 SHA-256: ba7175ff4b1d820b4a40fb2c87341dd6082e949c5b55c29e73075e4f4eab5ba4
134 Risk Score

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=understanding+earth+6th+edition+pdf+download PDF link annotation
    • https://balejumefem.weebly.com/uploads/1/3/0/8/130814467/zedusudovoleweme.pdfIn PDF document text
    • http://golixudib.mypressonline.com/how_to_make_animated_in_photoshop_elements.pdfIn PDF document text
    • http://fexevewuli.mypressonline.com/4967038468.pdfIn PDF document text
    • https://cdn.sqhk.co/vilitemeru/Hqgfxhi/rinunimanuwe.pdfIn PDF document text
    • https://cdn.sqhk.co/xadeviro/aZnAhiw/paper_mario_color_splash_walkthrough_roshambo.pdfIn PDF document text
    • https://luxaxezasu.weebly.com/uploads/1/3/1/3/131398230/rixowes.pdfIn PDF document text
    • https://cdn.sqhk.co/kidirugolo/aWhahOz/diamonds_imagine_dragons_chords.pdfIn PDF document text
    • http://nigavereke.mygamesonline.org/casio_hr_100tm_ink_walmart.pdfIn PDF document text
    • http://winovigamaj.mygamesonline.org/moto_g6_back_cover_replacement.pdfIn PDF document text
    • http://nejevefivi.mypressonline.com/xepitesedofibisubobob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484990/normal_5fd928405518a.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/diwitapezu/80943813076.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/ransomes_bobcat_mower_review.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/wimigoxo.pdfIn PDF document text
    • http://penanaras.myartsonline.com/how_to_make_a_pallet_jack_go_up.pdfIn PDF document text
    • http://mifojizu.myartsonline.com/how_much_does_a_6.0_powerstroke_engine_weigh.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/xonebegazojujiduvuka.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_off0000cb96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB96 5540 bytes
SHA-256: 944437f076e71f9245c8477802bc0ed188f7874f91fedd91b37153e33ef3c83e
font_01_sfnt_off0000de7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7F 10004 bytes
SHA-256: ab1c5a81d0c4d320893cd3777e18866586af962ccb4a62a27fcfc3039b195f8a