Malicious PDF — malware analysis report

Static analysis result for SHA-256 f86be6d03f144cca…

MALICIOUS

PDF

72.2 KB Created: 2021-02-11 18:30:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8a0c8784bfafce28f87d8eee32ed6eb4 SHA-1: df718f9cf0851a40661fedcf0cd94b443a0bfb7e SHA-256: f86be6d03f144cca6a2ca208e9e297ffe63554af026edc4c940b2087937089cc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wix?keyword=physics+regents+review+book PDF link annotation
    • https://dolopexoje.weebly.com/uploads/1/3/1/8/131872138/kadegazuvoxu_kepimowapejuro_puvut.pdfIn PDF document text
    • http://rijesukedad.22web.org/boyka_undisputed_2_movie_in_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/mepowokugo/gjhghfH/21629291162.pdfIn PDF document text
    • http://belkwigs.com/pujiporoxeweluruwa7yqim.pdfIn PDF document text
    • http://c-advance.space/braverman_neurotransmitters1upzv.pdfIn PDF document text
    • http://fortysgjdk.fun/jenajagasimozukofx1qr5.pdfIn PDF document text
    • http://kismykeitio.best/pexosapemuje9al4e.pdfIn PDF document text
    • https://zilexewutefak.weebly.com/uploads/1/3/4/6/134608169/96312.pdfIn PDF document text
    • https://nibuwoxemunovox.weebly.com/uploads/1/3/4/7/134714338/d3eb473a29224a.pdfIn PDF document text
    • https://vexikolilugurud.weebly.com/uploads/1/3/1/3/131379290/c75ab8f582af7.pdfIn PDF document text
    • http://scrlt.xyz/national_geographic_store_locations_londonp24hz.pdfIn PDF document text
    • http://saxefitipar.iblogger.org/samsung_j5_bypass_google_account_apk.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/pazatuv/8290360924.pdfIn PDF document text
    • http://sobemub.epizy.com/64909826619.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/opera_browser_offline_installer_terbaru.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/puxufutexemodaxinekamanit.pdfIn PDF document text
    • http://midowuvebadol.rf.gd/32960589131.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/meaning_of_android_in_english.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_off0000dbf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF1 5280 bytes
SHA-256: ed37c9d32445bb5a1bafe375bd3678b8c4ad2f7e9c38905110b24d4c1b6e4de5
font_01_sfnt_off0000ee04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE04 11044 bytes
SHA-256: 786fbdf2009acb27c70d1266b3c46983604df2009ab2a68848c711a8378d18dc