Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b01250fb8538844…

MALICIOUS

PDF

70.2 KB Created: 2021-02-18 07:28:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5c476ac5a6846df010d70a7901b48162 SHA-1: b82b126a67463cfb1e5dded895d49fc623c3a449 SHA-256: 5b01250fb85388444f23cb60855d4b33496d0e5dcaee78e6f581b38a5fc738bb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/wix?keyword=perry+law+firm+lincoln+ne PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374359/normal_601cf45a0a6d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376098/normal_602db380579a3.pdfIn PDF document text
    • https://cdn.sqhk.co/jijasitov/cjdigie/12774965798.pdfIn PDF document text
    • http://matroskin.space/how_to_share_someone_elses_instagram_post_to_facebook_storyyj9nd.pdfIn PDF document text
    • http://trastenmyqort.online/bspwm_rice_guide1pzj7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368488/normal_6009b70b68004.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379859/normal_600c10c99fee9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450353/normal_60067b77e7b5c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412382/normal_5fd1e6ece28f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461229/normal_5ff864d2a50c9.pdfIn PDF document text
    • https://cdn.sqhk.co/jurunuxetal/bidjahf/nasa_mars_rover_perseverance_launch_video.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/hiAiehg/frogger_2_gbc_rom.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481988/normal_5ffb0eea96276.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/sojenozap/53813943746.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/japanese_denim_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/86322430090.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/firefox_69._0._3.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_off0000d791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD791 5044 bytes
SHA-256: f38317fba25eefc889c992e401cf9166d93f619e41340dc3e1ad6a88b861d28e
font_01_sfnt_off0000e8c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C1 10404 bytes
SHA-256: 6872d16a25723abdcd436f35da946fc8633c12325df3ea9d79c1465249620850