Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1ff4977f0b829fb…

MALICIOUS

PDF

68.6 KB Created: 2021-03-08 15:00:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 083a9727f0f35f7e5e44443fc554b198 SHA-1: 06ba3b4340d84103544bf948d46f40cbccaf9e16 SHA-256: d1ff4977f0b829fbe0a8c52cd1c1da1088f7dd9c9519d9c061613c42b97c5285
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://gimoguvi.ru/123?utm_term=2001+chevrolet+tracker+owners+manual PDF link annotation
    • http://majexifavel.scienceontheweb.net/busibogixalifujugij.pdfIn PDF document text
    • http://ashotik.space/tapepupetoxubumedigu6bskq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387826/normal_60354defa56dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505837/normal_6030d74cdeb98.pdfIn PDF document text
    • http://sufawevugut.mywebcommunity.org/rewabo.pdfIn PDF document text
    • http://xrootunited.com/iphone_7_plus_jailbreak_10._2._1p1rxy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496014/normal_602694ac817df.pdfIn PDF document text
    • http://about-igsupport.com/weedmaps_harborside_san_joseh1thy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480753/normal_5feb1b9944c13.pdfIn PDF document text
    • http://maykistore.ru/48388096689gtwu7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392199/normal_5fde2b5a47125.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/38bb63fa-6fbc-4f74-9266-dfb787e7c187/relion_blood_pressure_cuff_hem-741crel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9249b5ab-72fd-481a-a292-9bf1ad4b985e/futegarasudarun.pdfIn PDF document text
    • http://jowosos.myartsonline.com/ranuxegivenejawafixut.pdfIn PDF document text
    • http://vaxufedujij.rf.gd/14839642775.pdfIn PDF document text
    • http://degudodenotiva.rf.gd/balak_palak_movie_720p.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c1e53f9-9fb7-4fd6-b175-fee63a8b5e57/the_revenant_movie_download_hd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c6f1053-43a6-465f-9aac-86d352933bad/how_much_is_john_rich_worth.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_off0000d03a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD03A 5488 bytes
SHA-256: 40b447179b91b292f3ebbe5a32b8f0480833ab6161c64ac2cb94aaa652f1bf07
font_01_sfnt_off0000e2d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D1 10140 bytes
SHA-256: acf0486a4feb7f3ec0b3054ea2c0c05bf39bf9da98c29293e6b168b9014cbd45

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