Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c11509a259f6a1c…

MALICIOUS

PDF

99.5 KB Created: 2021-04-06 15:42:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f73d9bf736477f9caec10b099b974703 SHA-1: 9f75c6817110f34dbd5b29da24c8f75ed38018ab SHA-256: 2c11509a259f6a1c3f33b57119127a67daef23a97b3a833fee49b24cb53bf98a
96 Risk Score

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 0.9997

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://fokemale.ru/award?keyword=benoit+mandelbrot+pdf PDF link annotation
    • http://opt05.ru/10000_reasons_song_lyrics_by_matt_redmanw358h.pdfIn PDF document text
    • https://zudovizu.weebly.com/uploads/1/3/4/3/134338339/5e0680b8.pdfIn PDF document text
    • https://zapunetiregete.weebly.com/uploads/1/3/5/9/135956705/3298673.pdfIn PDF document text
    • https://miwebuzoz.weebly.com/uploads/1/3/4/0/134095964/1808964.pdfIn PDF document text
    • https://dosupara.weebly.com/uploads/1/3/1/3/131380612/jawowivuwibam_tukobaxijifeded_rolawekorirug_rikup.pdfIn PDF document text
    • http://bullbananavannaone.xyz/21852030448q9zba.pdfIn PDF document text
    • https://xonufixusunex.weebly.com/uploads/1/3/4/6/134610533/wodekejapuw-wemaxojajakini.pdfIn PDF document text
    • http://hs-life.ru/black_and_decker_battery_operated_edger6r7xi.pdfIn PDF document text
    • http://reawolt.online/que_es_composicin_en_las_artes_plasticaspjeiw.pdfIn PDF document text
    • http://redit.fun/technicolor_tc8717t_passwordif2ow.pdfIn PDF document text
    • http://timelessdecorum.com/tijusifomudexudomigu6v52.pdfIn PDF document text
    • http://lnstagram-help-businesss.com/while_during_exercises8xgpm.pdfIn PDF document text
    • http://varietystore.website/pavazixojev69fj.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/ninasivol/nasuko.pdfIn PDF document text
    • https://s3.amazonaws.com/gonasidupij/is_the_movie_natural_selection_on_netflix.pdfIn PDF document text
    • http://tajijubu.rf.gd/87714060476.pdfIn PDF document text
    • http://jabisuluro.epizy.com/au_bonheur_des_dames_english.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/6090912585.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/47093915754.pdfIn PDF document text
    • http://bolusober.epizy.com/outlook_for_mac_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/gazijewevan/interior_designing_in_karachi.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_off0001444e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1444E 5200 bytes
SHA-256: b06fadb7d9adc722889796d94be1d1efe13691070a5ee3a1c712f3ab2c280b3e
font_01_sfnt_off000155db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x155DB 13332 bytes
SHA-256: 81b63b2a11ae507e1db8a401dd27f6ee1012fb48f22b78a4cd47455b76c51ef4

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