Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe2c880119602bf…

MALICIOUS

PDF

69.8 KB Created: 2021-03-02 16:45:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ea6290d52d08de4ea463557fd5115df9 SHA-1: 1a90e83289c30ea35cd077ce007611a7afe20969 SHA-256: 6fe2c880119602bf488ac403be328ceedf66dbbfaa592174ad8c8076ff757aa9
196 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 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.
  • 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://botokaw.ru/wix?keyword=chapter+11+review+answer+key PDF link annotation
    • http://rolopigabetitu.scienceontheweb.net/timex_1440_sports_watch_manual.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/recipes_for_air_fryer_pork_ribs.pdfIn PDF document text
    • https://letazofuwukuge.weebly.com/uploads/1/3/4/8/134869061/d4669eda.pdfIn PDF document text
    • http://jikusofare.mywebcommunity.org/19224213501.pdfIn PDF document text
    • https://cdn.sqhk.co/toviranevu/d5idSfR/colour_block_denim_jacket_blue.pdfIn PDF document text
    • https://cdn.sqhk.co/zonigita/ZPgj69i/15272182948.pdfIn PDF document text
    • https://rinavotonig.weebly.com/uploads/1/3/4/4/134477757/zufenenugutib.pdfIn PDF document text
    • http://medicalpracticementor.com/vpn_private_internet_access_review6gzmk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kavibajegis.onlinewebshop.net/metodologia_de_la_investigacion_cuantitativa_segun_autores.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/83373826361.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/39598046259.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/vepojafesem.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/44194437646.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/yacimiento_atapuerca.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/bleacher_report_mlb_playoffs.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/ver_base_de_datos_sqlite_android_studio.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/delete_apple_music_s_android.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/arjun_reddy_bgm_video.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_off0000d4ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AE 5148 bytes
SHA-256: 4c03b65ba564167e5d29f21e41d112737ebf44020382ffd7cdaeced6a08ed8fb
font_01_sfnt_off0000e644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE644 10380 bytes
SHA-256: eb6d3dff99376f2e9c648158f1bafcde57c5549e546765dafb3d8e0543bb7c40

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