Malicious PDF — malware analysis report

Static analysis result for SHA-256 08cb22309e903e7b…

MALICIOUS

PDF

70.1 KB Created: 2021-03-09 09:01:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: df66a471e723e7af45ebff17a0c84faf SHA-1: 723a5689fd842f681d4c32c79f78586116bdae77 SHA-256: 08cb22309e903e7be02a690fc2d79b241921d249c86a4d00d88cb894a3427b22
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/123?utm_term=passive+all+forms+exercises+pdf PDF link annotation
    • https://cdn.sqhk.co/fematixub/igeIdhh/city_racing_3d_mod_apk_free_download_revdl.pdfIn PDF document text
    • http://contentmedialiteracy.com/quranic_arabic_corpus_download53n4w.pdfIn PDF document text
    • http://nakanilo.club/physics_today_2017x31md.pdfIn PDF document text
    • https://cdn.sqhk.co/xibidodoko/fsjfA9O/53466851690.pdfIn PDF document text
    • https://cdn.sqhk.co/guxifunuris/eggghLi/19384402412.pdfIn PDF document text
    • https://cdn.sqhk.co/fazovivum/7955jap/the_room_movie_2015_rating.pdfIn PDF document text
    • https://cdn.sqhk.co/memenewo/fkAuhpb/rizepirubolo.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/hjgcTFV/69669040461.pdfIn PDF document text
    • https://cdn.sqhk.co/zumedizojas/djaLjid/neha_kakkar_all_new_song_downloadming.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.site/vavajodanwahxz.pdfIn PDF document text
    • http://orbitan.fun/3995836243232b8r.pdfIn PDF document text
    • https://cdn.sqhk.co/bimonabozo/hfA2nTV/wunekonevafidikedekika.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/widuxade/bifirijovefu.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/n64_emulator_pokemon_games.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/out_of_office_reply_text_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/essential_vocabulary_for_toeic.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/langrisser_mobile_soldier_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/archeage_2019_gold_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae037df2-5078-40c2-8312-0ece1b42a9cb/asus_rt_n66u_service_manual_reboot.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/dovetalevaxaluzizubaza.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/20720284247.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e4fc2ea-c0c2-4736-96db-bb4507b1e305/how_to_write_spoken_poetry_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/canon_eos_rebel_xti_manual_download.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_off0000d5af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5AF 5428 bytes
SHA-256: 0b1f583fa8405b55c37c29818e3c6ea3bc4c6f010acf93d882a2d99e93bb1e46
font_01_sfnt_off0000e81b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE81B 10228 bytes
SHA-256: 25f0e982d70e26d1cae688b9373bb8f49e0a9b41bedfd4cdadf4c5c186e8fd40

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