Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdb97a8dc1a08bc1…

MALICIOUS

PDF

69.2 KB Created: 2021-02-13 13:31:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 934ef039f95fc882c618a6612a46aa5e SHA-1: e2c24ae5723ac5ac0e10c2e6c5159e606b29d93b SHA-256: bdb97a8dc1a08bc1ba43c7490255728a28be317c762a58cc060e4f60bd421422
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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.
  • 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://druttle.ru/aws?utm_term=endothermic+and+exothermic+lab+report PDF link annotation
    • https://suzeziji.weebly.com/uploads/1/3/0/7/130739492/4868767.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/djcB4Kc/lijodagazexuzeganaf.pdfIn PDF document text
    • https://cdn.sqhk.co/katutilit/fOsgdjg/54056480385.pdfIn PDF document text
    • https://cdn.sqhk.co/tejurorado/3iahfij/busitilejisezazam.pdfIn PDF document text
    • https://cdn.sqhk.co/nejibija/fVid8je/bexotiwubaganobegedesali.pdfIn PDF document text
    • https://xomepuwosabagef.weebly.com/uploads/1/3/0/9/130969083/bijed-rutotapujezewun-muzasor-semurup.pdfIn PDF document text
    • https://xepevuke.weebly.com/uploads/1/3/0/7/130775471/nopejona.pdfIn PDF document text
    • https://buparemekixa.weebly.com/uploads/1/3/0/7/130739227/13d2ff13.pdfIn PDF document text
    • https://cdn.sqhk.co/nivodoruw/5zMaxJ8/baby_phone_nursery_rhymes_game.pdfIn PDF document text
    • https://cdn.sqhk.co/mogowepuw/ieMfN2g/amazon_music_vs_spotify.pdfIn PDF document text
    • https://bigonokefexix.weebly.com/uploads/1/3/4/5/134518339/8883173.pdfIn PDF document text
    • https://pufukowog.weebly.com/uploads/1/3/4/5/134583281/sefosate.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwaseja/gjRcbjb/86225925480.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/gezejoputiwinu/power_bi_report_server_colors._json.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/26904651473.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/7432359142.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/mind_map_branches_powerpoint_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/37086750879.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B9 5300 bytes
SHA-256: a0d1570d4bb98c2dc2f23e4cb73c5e3c3dac4ec02ce611116113925f9a7f04dc
font_01_sfnt_off0000e494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE494 10352 bytes
SHA-256: 2371f48ee91c6ca1f5062c3a6f08129f4f897fa58df4403f3eb9c689700bed7e

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