Malicious PDF — malware analysis report

Static analysis result for SHA-256 899fd1b54f712cae…

MALICIOUS

PDF

68.3 KB Created: 2021-02-27 02:30:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: add40c126a66441841d2603253e3ed81 SHA-1: e8474cd08a7fe88cc2e9efb01570e0046a7fe807 SHA-256: 899fd1b54f712cae81ee7adb351b0bf45d20adc0d393d8eac26d1e27eb6ddfac
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://ponafet.ru/award?keyword=manual+seiko+7t62+espa%25C3%25B1ol PDF link annotation
    • https://belibezininu.weebly.com/uploads/1/3/4/8/134850089/3388412.pdfIn PDF document text
    • http://love-your-lips.online/free_icloud_unlocker_for_windows_10xng3b.pdfIn PDF document text
    • https://biwizodem.weebly.com/uploads/1/3/4/6/134650183/9737596.pdfIn PDF document text
    • https://pugotaba.weebly.com/uploads/1/3/5/3/135302821/27844e07bd86.pdfIn PDF document text
    • https://cdn.sqhk.co/lugizumevemu/eghh0eC/classic_arcade_game_emulator_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/vozaxodep/atJ5YnE/classcraft_student_code_not_working.pdfIn PDF document text
    • http://startask.ru/nikadilimnniz6.pdfIn PDF document text
    • https://xabisipejerifo.weebly.com/uploads/1/3/4/6/134634854/6418023.pdfIn PDF document text
    • https://cdn.sqhk.co/tufiroxova/iKmhar9/21014200436.pdfIn PDF document text
    • https://xowonijateroz.weebly.com/uploads/1/3/1/3/131380337/kizokimuwidug.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/gurupixabogivaz/26764822796.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/grodno_azot_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/gopro_fusion_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/dekakazatedasu.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/2016_cadillac_xts_owner_s_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/invitation_for_birthday_template.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/vifadububawapegafofakit.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/zara_men_s_blazer_size_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF93 4112 bytes
SHA-256: e95a346cfe264d31673cf992af47cec5ac62f96d7d9541071bdaf0929e61949e
font_01_sfnt_off0000cdfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDFA 5364 bytes
SHA-256: 9e45f9b34b65503c2f0af4e3eaa13d16c7e9fcdbc864a3eeebca5958175cd5b5
font_02_sfnt_off0000e023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE023 9980 bytes
SHA-256: 7de12db69685d4ad78220d4ba216821d0d75141bb551601c3e24f3debbd20d56

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