Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e91916aef1cd728…

MALICIOUS

PDF

70.1 KB Created: 2021-02-06 05:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 14de7fc0bc46b2e9e6cc427e0f48b767 SHA-1: 20847b226fb5f2bec1e716d57c9ee814edef378e SHA-256: 6e91916aef1cd7286b247b0952f33cda2dfac4bc8e4d0b5ed1b45ea19ed7684a
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://jottigo.ru/aws?utm_term=diablo+2+lord+of+destruction+druid+guide PDF link annotation
    • https://cdn.sqhk.co/gonolesuzam/Hgh3Sha/mechanical_energy_examples_4th_grade.pdfIn PDF document text
    • https://cdn.sqhk.co/bomunerafoju/ihW5uox/quick_message_app.pdfIn PDF document text
    • https://cdn.sqhk.co/pavujakorige/c6iecZa/tapuv.pdfIn PDF document text
    • https://cdn.sqhk.co/talurelope/jaRsjHg/ravens_schedule_2020_opponents.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/cP7haNR/didi_friends_cake_topper.pdfIn PDF document text
    • https://cdn.sqhk.co/fotajoge/Bhiiaij/chocolate_cake_recipe_with_coffee_and_vinegar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478133/normal_6007d04574359.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459028/normal_5fe5c4e9640d8.pdfIn PDF document text
    • https://cdn.sqhk.co/letaziseb/hehbaQJ/like_a_boss_movie_dvd_release_date.pdfIn PDF document text
    • https://cdn.sqhk.co/moxinivo/ijXfhci/2755070634.pdfIn PDF document text
    • https://cdn.sqhk.co/jizuxadif/Phehi3Z/black_panther_animal_baby.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://divifafapinuk.rf.gd/workkeys_applied_mathematics_practice_test_1_answers.pdfIn PDF document text
    • http://todonoto.epizy.com/kenokugu.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/falciform_ligament_ligamentum_venosum.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/judotojugixurip.pdfIn PDF document text
    • http://zuniguvip.epizy.com/adb_android_app_shell.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/wifi_hack_apk_root_xda.pdfIn PDF document text
    • http://balazetesu.epizy.com/badabaza.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_off0000d3ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3CE 5460 bytes
SHA-256: ff45e65401e5cc475f69ff7edefd3a3db1a162a94e0804813672adf5c24a5c72
font_01_sfnt_off0000e677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE677 11120 bytes
SHA-256: 9f776af53addde96974624a6c6c64dcdd2c4b4981056997dc6d7e4ec81df07b0