Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d46474608851621…

MALICIOUS

PDF

78.6 KB Created: 2021-03-18 07:54:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9340b31023c8d1f5c47adc3a6f239fc0 SHA-1: 841177375706667b3fca7ead18b983f1cc05aa7a SHA-256: 2d464746088516215fcbfc1884558f733dabc8cdffe18cdef9b0867e3de67b19
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/123?utm_term=blade+man+drakorindo PDF link annotation
    • http://7lessons.website/kosuvigojotakufisiweog8lz.pdfIn PDF document text
    • http://7lessons.fun/nixon_the_unit_407jxt7.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/CsaOhdD/77800013952.pdfIn PDF document text
    • https://cdn.sqhk.co/riwaxagi/shdA8je/43150294930.pdfIn PDF document text
    • https://cdn.sqhk.co/filomada/hhhbogi/38398699344.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/jdmnW67/dish_tv_recharge_in_sri_lanka_vavuniya.pdfIn PDF document text
    • http://evgeniy-semenenko.ru/daily_language_review_grade_54said.pdfIn PDF document text
    • https://cdn.sqhk.co/jojevirelo/c5hfbha/history_vault_cost.pdfIn PDF document text
    • https://cdn.sqhk.co/wumidimux/hEjahch/genaboxoroguzujexut.pdfIn PDF document text
    • http://mapugukabazewu.scienceontheweb.net/tv_program_proposal_template.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/e8aha4P/angry_birds_dream_blast_2.pdfIn PDF document text
    • http://naturaitalia.space/vumafalonitatepfiwtq.pdfIn PDF document text
    • https://cdn.sqhk.co/popaxutu/EXsgfoz/gikopemeropikapagegesus.pdfIn PDF document text
    • https://cdn.sqhk.co/jasurisunav/digmvia/8034185169.pdfIn PDF document text
    • http://xorimomupajo.scienceontheweb.net/whirlpool_whes30_water_softener_reviews.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1d05d43-ead8-45b0-b25e-c44c1dad8ea2/dc_national_art_gallery_hours.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43dc5e31-6732-43f0-ba5b-329a36a29f8b/vopogevadimabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00e75af6-aa0a-4be5-b3f6-54ed29888538/how_to_make_a_lot_of_money_fast_in_cyberpunk_2077.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a113904-986c-46c6-bef4-d94bc5eb28d5/xuwudexiwoxoxopiduzebiwuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/780440b5-1b44-4b03-99cb-5b1c4df77114/tone_up_legs_exercises.pdfIn PDF document text
    • http://tivexedasabuxi.myartsonline.com/cavatina_stanley_myers_piano.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA40 3432 bytes
SHA-256: 4b27ee62b9e3443d03cfa8b9bfa625c42a548799888f80fd68856ab04477e07c
font_01_sfnt_off0000f65e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65E 4908 bytes
SHA-256: 2b9a4e8cfc8f7db032b135696bbe0b4a79100e7e6783b08b40d8514e3b8faa25
font_02_sfnt_off000106f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106F6 11116 bytes
SHA-256: 1b3fe64bc97864b7b919138ea84d854b267905eb2c30d78d798e147f133d84ca

Open this report in the interactive analyzer, or submit your own file for analysis.