Malicious PDF — malware analysis report

Static analysis result for SHA-256 614e963435ea4985…

MALICIOUS

PDF

73.1 KB Created: 2021-02-25 07:46:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 617fdbf67e34e2ac218fdfad5b7aec36 SHA-1: 62fc808970824f997fb694afeef0123fe1016afc SHA-256: 614e963435ea4985451aa8c6f108edaec45d9aa80e22ca95a848c984e9b54fcc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wb?keyword=what%20is%20scaled%20score%20in%20star%20reading PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486983/normal_6022aedc2a17d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481424/normal_5fdba184d02a5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369911/normal_5ff91ac24af1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420454/normal_60081723a4583.pdfIn PDF document text
    • https://cdn.sqhk.co/fazofasufiwu/hYhijCy/rush_hour_3_trailer_ita.pdfIn PDF document text
    • https://cdn.sqhk.co/tinipuded/zsmMKjc/milwaukee_rechargeable_flashlight_home_depot.pdfIn PDF document text
    • https://cdn.sqhk.co/vafegijateno/jcjbgfx/81327739582.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463262/normal_60011d2c23b0a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xotewewo.rf.gd/86789948203.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/battery_tender_1000a_jump_starter_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/congruence_and_similarity_worksheet_tes.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/sfp28_module_datasheet.pdfIn PDF document text
    • http://baverasoge.epizy.com/bumeb.pdfIn PDF document text
    • https://s3.amazonaws.com/tipikaxe/terraforming_mars_board_game_strategy.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/what_was_the_first_form_of_government_in_greece.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_off0000e10a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10A 5216 bytes
SHA-256: 94ad52932018f0ab3499114ff513f37ece14138bbff60410b7e455a2c0a9af08
font_01_sfnt_off0000f2c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C9 10808 bytes
SHA-256: 59a3e8d1086b3012f7511fefa3d2f9352cae44a9248b7fde4e1653fd4549b94f