Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a0b3808bd59675…

MALICIOUS

PDF

70.7 KB Created: 2021-03-05 08:25:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2ba1ade1c275eba0795a063bbb229f95 SHA-1: 0c6950389d148a6d43aae2e325b6dd11aa152ffa SHA-256: 22a0b3808bd5967515403f196c5b083564fbd5a46b4c3fe1e392115a7ab3cc1d
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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.
  • 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://midufefew.ru/award?keyword=author%2527s+purpose+worksheet+middle+school+pdf PDF link annotation
    • https://divewamekavese.weebly.com/uploads/1/3/1/8/131860060/2359043.pdfIn PDF document text
    • https://rasozonikazip.weebly.com/uploads/1/3/4/9/134904665/jineripibulazobe.pdfIn PDF document text
    • https://pegiromilu.weebly.com/uploads/1/3/4/6/134683304/8042500.pdfIn PDF document text
    • http://fapenas.22web.org/brick_n_ball_game_app.pdfIn PDF document text
    • https://bugomalaked.weebly.com/uploads/1/3/5/3/135324661/6296529.pdfIn PDF document text
    • http://peroruse.iblogger.org/b_flat_clarinet_major_scales_sheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://0b609444-e5a2-4a7e-9779-a3c6bae51a53.filesusr.com/ugd/529dbf_7c989a4df32746a39bda0d13d6f7dadb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pokixovuxik/animal_kingdom_worksheets_middle_school.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/wigibamo.pdfIn PDF document text
    • https://c9b0c9dc-51ad-46ec-84b2-dbc26df53712.filesusr.com/ugd/b6f588_e9bc871519054046b9702b5c3182e180.pdf?index=trueIn PDF document text
    • http://nuwowafel.rf.gd/babbu_maan_all_punjabi_song.pdfIn PDF document text
    • http://rufabededaloti.rf.gd/52990532773.pdfIn PDF document text
    • http://sowiriged.rf.gd/69584318775.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/implant_direct_guided_surgery_handles.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/palop.pdfIn PDF document text
    • https://bd15da75-ee01-4ad3-8b22-4778d9929f37.filesusr.com/ugd/1abc29_15bc9b43ceec4dcfb82799f0118e81a0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/56671685834.pdfIn PDF document text
    • http://jamipuvulegaze.epizy.com/20393647061.pdfIn PDF document text
    • http://lirinuguwe.rf.gd/char_griller_smokin_champ_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/1000_piece_jigsaw_puzzle_template.pdfIn PDF document text
    • https://a0bbd489-bf03-48a0-8e93-88abd0751e5b.filesusr.com/ugd/370ea2_f337cf93febd4c6190cb6d411f6d8e46.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fexuror/minetest_ubuntu_16._04.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_off0000d7b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B4 5364 bytes
SHA-256: 903629f71efc73c1fd2cdf1bdc927dacb11a172b5d555c5dadf251427695700d
font_01_sfnt_off0000e9e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9E6 10160 bytes
SHA-256: b0473a8379d377832a903f4cd898012799a2f553464757fca304c4e9311184c6

Open this report in the interactive analyzer, or submit your own file for analysis.