Malicious PDF — malware analysis report

Static analysis result for SHA-256 23c644e9060d28c7…

MALICIOUS

PDF

69.9 KB Created: 2021-03-10 10:21:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a4b45bee78b55dcac945c2411f35fe0c SHA-1: e5300d33e22fe4f6bedd82401259b7ab0cc2cf5c SHA-256: 23c644e9060d28c76b791121888cf0974124968e4b6316a9750e6484d15e8e09
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/wix?keyword=homer+jr+high+lunch+menu PDF link annotation
    • https://cdn.sqhk.co/lezagononek/cJICgd1/58576264055.pdfIn PDF document text
    • http://guzoseta.getenjoyment.net/tifepoxe.pdfIn PDF document text
    • https://cdn.sqhk.co/fotusonetagu/ji2iceN/beiimaan_love_all_song_pagalworld.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473384/normal_5fc84b7ab99ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426085/normal_601e6b8305e28.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471688/normal_5fc5eacb201d2.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/Trgidhj/66967972152.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408873/normal_602d60edf26ae.pdfIn PDF document text
    • http://zitokujamu.mypressonline.com/tusitesowa.pdfIn PDF document text
    • https://cdn.sqhk.co/seworani/h3gichd/how_to_make_boom_cards_speech_therapy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481417/normal_6020fea061f3a.pdfIn PDF document text
    • http://pojapusevipuzu.mypressonline.com/how_to_set_a_capello_clock.pdfIn PDF document text
    • https://cdn.sqhk.co/sepufaziru/hggjfvp/road_trippin_lyrics_dan_and_shay.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/fedure/dejupewibuvix.pdfIn PDF document text
    • https://8f20b4bd-83f7-4a55-8c6f-e9501e2e061c.filesusr.com/ugd/c1c462_629d8a1b7a0047ea8856c7398c47e1d0.pdf?index=trueIn PDF document text
    • https://cf336f9a-6a79-4542-9269-5b62d6eb69dd.filesusr.com/ugd/1daf83_61350ca2bd2c4143a5c819b743b1ff5d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/this_bridge_called_my_back_download.pdfIn PDF document text
    • https://61249681-e2d1-4375-841a-b3723294d79c.filesusr.com/ugd/3d514e_30a4439c0c8f4de68855e4aa48ed5947.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/rifobuvofupenafu.pdfIn PDF document text
    • https://dda5c79a-a75d-44d9-a006-48dec3bfe172.filesusr.com/ugd/115d6e_53d7188b52024ae28de8407fc8c34b90.pdf?index=trueIn PDF document text
    • https://436240a4-ef10-404e-ad90-c5cab949c7af.filesusr.com/ugd/3fb742_e847f5edae614f41a5080e6503ad7c16.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jimugivos/adobe_xd_ubuntu.pdfIn PDF document text
    • https://3ff4c494-4984-418a-b709-7a5c611cca0a.filesusr.com/ugd/adbee0_9e1efca90c79462bacf27a23c7204632.pdf?index=trueIn PDF document text
    • https://a49aa754-465e-4bbd-924e-b3d0e7b66bd4.filesusr.com/ugd/81d6a4_44b9b6e6116d489cb8f0b49d5d6dff24.pdf?index=trueIn PDF document text
    • https://d99c26cc-8c68-456d-a039-1a26994c8d26.filesusr.com/ugd/105a8c_ebcec406c59c4f9c8f1aa710bd987128.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zowibatev/bsa_kayaking_merit_badge_worksheet.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_off0000d690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD690 4860 bytes
SHA-256: 54ecc9d083001d20d1c7ab7d14babf452db8f0b9ae044caa1aa999b2d2fec06f
font_01_sfnt_off0000e6f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F2 10228 bytes
SHA-256: dd72f6c44abb682784eb5296a5e31af2a0c58c685b17af5e25bc31d5132686e4

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