Malicious PDF — malware analysis report

Static analysis result for SHA-256 edfbdf08ff006608…

MALICIOUS

PDF

72.1 KB Created: 2021-04-30 14:44:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: fbe2ffcca4f22037fb145c4beb6ad6c1 SHA-1: cf3ab5989bb77d1ddab68bc4843ecf7a4b472c7b SHA-256: edfbdf08ff006608a45a4c6b91fd18b2b07c832952f501c8ec8d9a90caa2d27d
126 Risk Score

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 0.9997

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://lozipotod.ru/strik?utm_term=manual+de+usuario+de+maquina+de+coser+brother+vx+1120 PDF link annotation
    • http://carinsusa.com/libro_la_metamorfosis_de_una_madre3xiqh.pdfIn PDF document text
    • https://bipikive.weebly.com/uploads/1/3/4/3/134342269/midaterozus_sejag_fimudakeluvum.pdfIn PDF document text
    • https://sowidokobixu.weebly.com/uploads/1/3/1/8/131856306/wasapolizebafilepamo.pdfIn PDF document text
    • https://cdn.sqhk.co/jufenakajo/rrhdbhf/felupakepuxuxokotufomel.pdfIn PDF document text
    • https://cdn.sqhk.co/pategazikiw/ibghNgg/sijenuxixorubida.pdfIn PDF document text
    • http://characduwe.space/snare_rudiments_for_beginners7c094.pdfIn PDF document text
    • http://klosheff.xyz/software_testing_interview_questions_and_answers_for_experiencedobk1o.pdfIn PDF document text
    • http://lasns.fun/biochemistry_of_carbohydrates7zzlv.pdfIn PDF document text
    • http://zdorovienashevse.xyz/502623326bhfng.pdfIn PDF document text
    • http://haustova.com/kovamije44o57.pdfIn PDF document text
    • https://wogizirimabote.weebly.com/uploads/1/3/5/3/135337148/zusede-patidibitoja-tuwemet.pdfIn PDF document text
    • https://rawekawus.weebly.com/uploads/1/3/4/4/134467784/zarejapufanotit_dezigewilabin.pdfIn PDF document text
    • http://ryukzak.digital/banjo_movie_song_bestwapjf04a.pdfIn PDF document text
    • https://cdn.sqhk.co/xupixawina/gijf9Zj/72598679012.pdfIn PDF document text
    • http://slmit.space/gomerimopemiteb3qdj.pdfIn PDF document text
    • http://umniashka.ru/qu_es_una_funcinamdkr.pdfIn PDF document text
    • http://chelamela.org/fikafipinunuti7ony.pdfIn PDF document text
    • http://unlockdeals.shop/22046775111ocawm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://f6180879-d31b-499c-8e42-fead7842c491.filesusr.com/ugd/007227_efb78eab8c544d1595dd941ef1d5910b.pdf?index=trueIn PDF document text
    • https://6184de0c-c318-42a7-882e-c5ddc63b817d.filesusr.com/ugd/1c8c1e_e4df5d383b33468888cf1751e1b4375d.pdf?index=trueIn 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_off0000ca11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA11 5788 bytes
SHA-256: 6a130569b9593d6f3b5a6de0d2072e9d5c82b718fe0ed734cd6188ec0fb27628
font_01_sfnt_off0000dd98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD98 11160 bytes
SHA-256: 4f59441ce78ba1ae390bc7b42026dbdc4f73e9a01a19c34968b7c4794dab7a13
font_02_sfnt_off000102aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102AA 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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