Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6663121110a377b…

MALICIOUS

PDF

78.9 KB Created: 2021-03-15 13:07:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f4e399abe0bb3a5e5c96031565013a79 SHA-1: c745f4a30d29e4cf50f3a998eab2359a593b07d9 SHA-256: a6663121110a377b61d043bc772d61b34e225b1ff7e6dd2bcfc503208d51bf13
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 0.9994

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://golowaki.ru/wix?keyword=christian+academy+of+greater+st+louis PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4372702/normal_5fd341d03418b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383680/normal_603b82c47bfb9.pdfIn PDF document text
    • http://mobile-media.moscow/minecraft_capes_1._13._2itq3r.pdfIn PDF document text
    • http://fasekafalig.scienceontheweb.net/dumudopubame.pdfIn PDF document text
    • http://tuxesimufimiti.mypressonline.com/jejamufigim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457302/normal_604d2d70c7726.pdfIn PDF document text
    • http://discout.online/c_dictionary_contains_key_performances4z5n.pdfIn PDF document text
    • http://wulutano.mywebcommunity.org/holy_quran_in_tamil_free_download.pdfIn PDF document text
    • http://sirunome.mypressonline.com/34932052769.pdfIn PDF document text
    • http://look-hotel.com/lagu_dave_brubeck_take_fivebnul8.pdfIn PDF document text
    • http://yoga-fitness.space/64027958972j6c8f.pdfIn PDF document text
    • http://dadefuxafovub.22web.org/87034596147.pdfIn PDF document text
    • http://kevufeduwatawos.mypressonline.com/vukexowu.pdfIn PDF document text
    • http://straponartist.com/el_mundo_de_sofia_pelicula_online_gratisd5qjt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383450/normal_5fd698e8cba00.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/tevigotu/super_bingo_game.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/85213597161.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/35811309186.pdfIn PDF document text
    • http://vasugam.rf.gd/46295290435.pdfIn PDF document text
    • http://rulenanevatetid.epizy.com/weboxodorivotumum.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/bi_monthly_report_of_rbi.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/full_size_xl_mattress_sheets.pdfIn PDF document text
    • http://jexurowofox.rf.gd/65681718608.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_off0000f616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF616 5444 bytes
SHA-256: f57517b981620c99264df3c1430481c3219f8d2ed47bbea1ad7f4524584d5a06
font_01_sfnt_off0001086f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1086F 11076 bytes
SHA-256: 71641d64a12f9efba2c38c7fc86bf1d62d25d550dd912fb41d56f01e522007a8

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