Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd6f71d069725c02…

MALICIOUS

PDF

77.2 KB Created: 2021-03-31 09:20:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 15c10398fa61cb707f9124ebbed84b92 SHA-1: 8583ac026eaa5e346797187df582b7f431870697 SHA-256: bd6f71d069725c02fe881014bc3d4ef16d4106a5d5b675485b8cb820af82724e
104 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. It uses an urgency-based lure. 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 0.9984

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://baarspo.ru/aws?utm_term=how+to+connect+tccl+set+top+box PDF link annotation
    • http://lifukuginuk.iblogger.org/musez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459776/normal_5ff2754e643c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384825/normal_60289d680f5a3.pdfIn PDF document text
    • http://libuwapuvewipev.mywebcommunity.org/soziponugagurovubewu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415334/normal_602c9484883b3.pdfIn PDF document text
    • http://zozavelomidabi.scienceontheweb.net/buxadap.pdfIn PDF document text
    • http://warajuvevuv.medianewsonline.com/xodogizi.pdfIn PDF document text
    • http://masovizifuzaro.iblogger.org/12390834863.pdfIn PDF document text
    • http://wijofotezopadik.medianewsonline.com/vinuputimegofetuko.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://s3.amazonaws.com/tozaduliwubega/bonemukukusobulejedudug.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/why_does_my_uniden_phone_say_searching.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bbf0a77-19eb-4f51-baed-529e8ac3d276/91148268900.pdfIn PDF document text
    • http://pejefovad.epizy.com/20255695702.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/epiphany_piano_sheet_free.pdfIn PDF document text
    • http://vapovefov.epizy.com/ayub_khan_era_notes_in_urdu.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/cookie_sheet_cooking_spray.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/mapalexokozaredutonenudu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f244d22-3b0c-4bbd-9ce5-38f397c5d250/how_to_set_daylight_saving_in_al_fajr_clock.pdfIn PDF document text
    • http://posikin.myartsonline.com/how_many_carbs_are_in_a_wendys_chili.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e408ac90-4cae-412d-9e99-0eb612d9976c/36064120635.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/zazimilasudi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/307ad710-c319-4036-8bb6-5ef0b168358e/zisefagoposawil.pdfIn PDF document text
    • https://s3.amazonaws.com/bipepezuwed/pajogu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD014 4624 bytes
SHA-256: eb8580683747f161a91937115b08d4e616f8be7240a18853296154880bf4fa88
font_01_sfnt_off0000dfe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE3 10520 bytes
SHA-256: 0a7f786af65cb8131ba57a2a6fc77802ddfc20b41085266baeb60ad0edfd4a92
font_02_sfnt_off0001036e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1036E 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501
font_03_sfnt_off0001189c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1189C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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