Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e15b903bf8defd5…

MALICIOUS

PDF

88.3 KB Created: 2021-03-09 03:55:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4f902c877de952cf0cf034a324be1c88 SHA-1: 9f161556196b739917230ba65a1684e483203750 SHA-256: 2e15b903bf8defd5b19cdebae5d0f58981a6be63fe8456c6a3a364b0444dbb34
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 0.9996

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://druttle.ru/strik?utm_term=how+to+clean+a+singer+featherweight+sewing+machine PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401714/normal_603dc9bc6f181.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443357/normal_602fc6497730f.pdfIn PDF document text
    • http://bevibopo.22web.org/pixie_plus_singer_sewing_machine_instructions.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/zikeko/gangplank_guide_s9.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/samsung_nx3000_als_webcam.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/chitike_meeda_chitike_vesara_naa_song.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/63734105545.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/angry_birds_all_games_android.pdfIn PDF document text
    • http://savefativiluz.epizy.com/68889925718.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/gesibaxuv.pdfIn PDF document text
    • https://s3.amazonaws.com/sojenozap/dufemalekutaperisobejido.pdfIn PDF document text
    • http://puzexexaniledow.epizy.com/30821666632.pdfIn PDF document text
    • http://figapow.epizy.com/cloud_computing_architectures_et_services.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/conceptual_physics_paul_g_hewitt_answers.pdfIn PDF document text
    • http://rotikozezusigis.rf.gd/colonoscopy_guidelines_age_45.pdfIn PDF document text
    • http://ruzuzis.rf.gd/acta_constitutiva_de_sociedad_civil_formato.pdfIn PDF document text
    • http://wosotufozutula.epizy.com/31054637328.pdfIn PDF document text
    • http://jajowisomipuw.epizy.com/free_branch_manager_resume.pdfIn PDF document text
    • http://wipovevoliku.epizy.com/ginujudolija.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/craftsman_675_lawn_mower_oil_drain_plug.pdfIn PDF document text
    • http://wuzuwoxijotefik.epizy.com/12724272179.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/tagolib.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_off00011c33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C33 5348 bytes
SHA-256: 273a093a12e3967b229ea3c37a07ddbfaed8d2051c8c52c5d9da24e2bf6bd426
font_01_sfnt_off00012e4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E4E 10960 bytes
SHA-256: 087664a00c408084f5115d229c6f48c5dd38507d397f2c1f63ac40e0c533f369

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