Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b643f9e45cdfbe2…

MALICIOUS

PDF

101.6 KB Created: 2021-01-18 04:31:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: d8522f59d18d1bf51f61359c5c1d1f7c SHA-1: 979db2d9b925e988f920491c0e38704d9e374c9c SHA-256: 2b643f9e45cdfbe2b909e4d64ef227a999ad73f78794c0421de9d33655dce81b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

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://trafffi.ru/123?utm_term=synonym+for+long+lasting PDF link annotation
    • https://cdn.sqhk.co/tewokozogop/JhiUjdZ/pasefipuku.pdfIn PDF document text
    • https://cdn.sqhk.co/vasegodesazu/9id8hP7/pinomitunidunumekogufe.pdfIn PDF document text
    • https://site-1168108.mozfiles.com/files/1168108/old_pocket_knives_brands.pdfIn PDF document text
    • https://cdn.sqhk.co/dejuxafe/VhdhbvF/mario_party_music_roblox_id.pdfIn PDF document text
    • https://site-1173450.mozfiles.com/files/1173450/phoenix_weather_october_24.pdfIn PDF document text
    • https://site-1200839.mozfiles.com/files/1200839/mutalub.pdfIn PDF document text
    • https://site-1175878.mozfiles.com/files/1175878/download_city_island_building_story_mod_apk.pdfIn PDF document text
    • https://site-1167927.mozfiles.com/files/1167927/erasmus_internship_report_example.pdfIn PDF document text
    • https://site-1195638.mozfiles.com/files/1195638/98120964660.pdfIn PDF document text
    • https://cdn.sqhk.co/semobisugigi/djeSLjh/road_crisis_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/mufukep/downsizing_movie_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/download_youtube_app_for_windows_10_laptop.pdfIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/semozura.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/14769345328.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/6901110399.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/miziwubudirezunuwesidu.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/limits_calculus_examples_and_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/datugazowolezudejave.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/camino_frances_etappen.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off00015f7a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x15F7A 17388 bytes
SHA-256: b64f3fc5f86472c94e01f5297cd479d43f5b26ef8aa1d3ef5a6737fc0153ff61
font_00_sfnt_off0000dc90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC90 5740 bytes
SHA-256: 35c6dbccf7c25c59cdda98a5d0a9e69173ca2db5216a66f655e12da641dbbf60
font_01_sfnt_off0000f085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF085 5292 bytes
SHA-256: 681c01a0682370dfdd94fae72099d2914d90fb5a795a2d1adfae2e8054bea6a7
font_02_sfnt_off00010275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10275 2656 bytes
SHA-256: c206ac4eca120f096112d408dff6b33a2f721090936d80486df636e1cd240fde
font_03_sfnt_off00010d7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D7B 2328 bytes
SHA-256: 3702365b3034b9d7945da23b991b5e2ac3f8bb06d1ba3be7e5ba1b5d8dd48c9f
font_04_sfnt_off00011832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11832 2108 bytes
SHA-256: e66bd646ff29f48b94a898642357a1d5295b77faffa0bd70eb77acb4aebc9a97
font_05_sfnt_off000121fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121FE 6640 bytes
SHA-256: eca62b72654736461a635ba366d09d794777fd95c58152d2b251becdfce657e0
font_06_sfnt_off0001339b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1339B 13760 bytes
SHA-256: 033acae28647b6da70a8243a8d6f0727ad0dc2311cacc2438cfcfbd2fa3f829f
font_08_sfnt_off0001798c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1798C 3276 bytes
SHA-256: 51c1d5fa29146058fbc649eac7766b85490f6942bd67486bd14cc46e9087474c

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