Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b9dcced3417325…

MALICIOUS

PDF

85.8 KB Created: 2021-02-12 04:48:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4fa93045b7dd0d5aeaadad963e8f7382 SHA-1: ca302d8593d500179c2278a4434c047e2adc270f SHA-256: 08b9dcced34173250a40854b1cf3fe1165df0ea6d836decbe1831c63b086234b
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 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/wix?keyword=zombie+strategy+games+unblocked PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4380675/normal_6003d0f568250.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383921/normal_5fe03fe631afb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469350/normal_5ff18e2ebbd24.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/wexoteluwag/88327400644.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/chama_chama_new_song_dj.pdfIn PDF document text
    • http://gugamofizuxeg.epizy.com/havoc_brothers_songs_in_tamil_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wujanozo/wrecking_ball_christina_grimmie_song.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/97898790350.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/fire_brigade_online_form.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/ancient_cities_of_indus_valley_civilization.pdfIn PDF document text
    • http://berojopuzenon.rf.gd/84664952721.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/23435878004.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/70537529078.pdfIn PDF document text
    • http://vigiraporonom.rf.gd/fantasy_football_auction_values_ppr_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/frozen_song_lyrics_let_it_go.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/xerimelol.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/lizaromukuvimiguzubes.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/33028967103.pdfIn PDF document text
    • http://miwefonozez.epizy.com/chemical_kinetics_and_reaction_dynamics.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/indian_bangla_tv_serial.pdfIn PDF document text
    • http://kirogebi.epizy.com/antimetabolites_mechanism_of_action.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/gulagivapalu.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_off00011355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11355 5520 bytes
SHA-256: f82b710da84a065bea58add37cafb46469e7f43202d60c5022ac0c37a321fe96
font_01_sfnt_off0001260f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1260F 10412 bytes
SHA-256: 5ebcd38c61e61e12bf32a7550cb2b8a936d2cd86f295f40e72bf921aad039d27

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