Malicious PDF — malware analysis report

Static analysis result for SHA-256 5364d643bc7dd93c…

MALICIOUS

PDF

70.9 KB Created: 2021-02-23 13:04:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2ea826d50ac728d8cbe12957af8be41b SHA-1: 72d44935f48dd41c86d17b4287c4c28bdd1acb9b SHA-256: 5364d643bc7dd93cf842f4383e8d218adcea258a6fc5d698de618f43067305f4
176 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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://bologen.ru/wix?keyword=verbal+worksheets+with+answers PDF link annotation
    • http://shortsomfj.space/dabudo7wovp.pdfIn PDF document text
    • https://pevusipifo.weebly.com/uploads/1/3/4/8/134863194/c0fbe12de.pdfIn PDF document text
    • https://bosupazalo.weebly.com/uploads/1/3/4/4/134473359/2274175.pdfIn PDF document text
    • http://cozyplacefor.rest/mowalenemezezaro6ul35.pdfIn PDF document text
    • https://cdn.sqhk.co/fakomuse/jhgcigO/tujotakipasutuxu.pdfIn PDF document text
    • https://cdn.sqhk.co/nujidegowupi/jbhjaoj/beach_of_the_war_gods_full_movie.pdfIn PDF document text
    • http://gatorama.fun/juxinexitajugujavomivodinexorz.pdfIn PDF document text
    • https://zitejapaj.weebly.com/uploads/1/3/1/8/131872087/doxadisivefifojizij.pdfIn PDF document text
    • http://rusakova.space/the_last_house_on_the_left_1972txufv.pdfIn PDF document text
    • https://pewofofuvalok.weebly.com/uploads/1/3/0/7/130775386/kunaxezurazimubosiru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454562/normal_602b2bacba0ba.pdfIn PDF document text
    • http://ceter.xyz/31851439294v075y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405930/normal_5fd60d3128774.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/xovajukoxin/software_project_documentation_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/power_season_5_episode_5_toxicwap.pdfIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/what_is_the_difference_between_a_short_story_and_a_novella.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/un_puente_hacia_terabithia_resumen_completo.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_off0000d95e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD95E 5036 bytes
SHA-256: eb2800fbc3509dad6df69e21eb9699ffb5e0a15c3642db22a765ae3ad23b7b25
font_01_sfnt_off0000ea88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA88 10492 bytes
SHA-256: 7f0d57cabfa5da5edab25ebf108aafac2e47ff15bf01a938c2b9b08e1aac17dd

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