Malicious PDF — malware analysis report

Static analysis result for SHA-256 46e749c3f8f6de44…

MALICIOUS

PDF

86.2 KB Created: 2021-03-20 12:31:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 84392f5fbd99b9a75e63484096705947 SHA-1: ad16b0c0a93231e0813d25474c1a22dbad8c3c11 SHA-256: 46e749c3f8f6de44ad35e5991e1fe141fba4416d7ec01c4b255b3bf5db89880e
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 0.9991

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://dafemum.ru/wix?keyword=nickel+and+dimed+summary+chapter+2+sparknotes PDF link annotation
    • http://romeoplanet.club/sound_equalizer_windows_10_apppigwu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385012/normal_6037fe38802d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490367/normal_6005deb8166a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456140/normal_5fcfa479bc4d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379474/normal_5ffea48999dcc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479678/normal_6009138d4b7c0.pdfIn PDF document text
    • http://wonder-ita.space/tigaxedoneduzaxamuwot0ml7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448124/normal_604a9d2558003.pdfIn PDF document text
    • https://cdn.sqhk.co/zuwiwejagub/i0fgcif/layton_brothers_mystery_room_tv_tropes.pdfIn PDF document text
    • https://cdn.sqhk.co/bemaxopig/eHatzKk/wazemosikow.pdfIn PDF document text
    • http://aycotoro7.xyz/how_do_i_use_my_behringer_x32_as_an_audio_interfaceah6cf.pdfIn PDF document text
    • https://cdn.sqhk.co/temazajilib/nwq0qgh/arcade_pre_hack_dragon_ball_z.pdfIn PDF document text
    • https://cdn.sqhk.co/siripeka/jbja5bQ/45722696185.pdfIn PDF document text
    • http://vashobereg.com/nibedtdlr1.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.site/rule_for_multiplying_square_roots4au9m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446489/normal_6012d4025fa21.pdfIn PDF document text
    • https://cdn.sqhk.co/pinepopowig/Fjagdgg/candy_ring_pop_molds.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/nisiwanolom/38120865124.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/how_to_connect_my_canon_wireless_printer_to_wifi.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/gasasejinibepojozato.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/buwuwututoj.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/vefinoga.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/57136430971.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/colours_in_japanese_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/7956599491.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_off000113ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113AB 5580 bytes
SHA-256: c433c7beb3e7418fbab499f14bac2498e1af9eed2c5ee975a7c29373503e3208
font_01_sfnt_off0001268c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1268C 10488 bytes
SHA-256: fe89a0b4307a72fe1a5d4489845101fb663414342f16e26197b49127ac3eddaf

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