Malicious PDF — malware analysis report

Static analysis result for SHA-256 433c3c01539fc1ba…

MALICIOUS

PDF

69.0 KB Created: 2021-03-13 22:34:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a1d1ecdd8a162209185df575580c7b68 SHA-1: 39c36d50aff34a9586efb4bc5473e90859e4cb1e SHA-256: 433c3c01539fc1babf5b371d1872527a6814f800e34c053a3f9ee3031d9a11a5
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 0.9960

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://midufefew.ru/123?utm_term=falakata+today+weather+report PDF link annotation
    • http://hotita.space/ririgawejilh5np.pdfIn PDF document text
    • https://cdn.sqhk.co/takakakod/GcRiihb/biology_lab_experiments.pdfIn PDF document text
    • http://retys.space/how_to_get_the_volume_of_a_cuboid2uxsu.pdfIn PDF document text
    • http://sunmarkt.ru/sexigixetiwibeum864.pdfIn PDF document text
    • https://cdn.sqhk.co/kogewole/5gcSlia/43944465353.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412408/normal_60159defc7e94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477167/normal_600c3dca2e17c.pdfIn PDF document text
    • http://wtia.space/kemufixuditigotgvcvd.pdfIn PDF document text
    • http://vesibigezedenu.iblogger.org/7100860680.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485698/normal_5ffc3a41d9087.pdfIn PDF document text
    • http://zoxifowivo.iblogger.org/52373690927.pdfIn PDF document text
    • https://cdn.sqhk.co/pelopuxi/ib6hiBr/pink_floyd_marooned_solo_tab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391907/normal_6003f10a890fc.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/juvuraguvutoxif/zexilabixopidi.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/wumezinivesafilefozefor.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/electric_wheelchair_drum_cadence_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/cyberflix_android_requirements.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/73128908458.pdfIn PDF document text
    • http://sesenin.rf.gd/55552577285.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/tuwivurazosazafetetapow.pdfIn PDF document text
    • http://mejavifoxeb.rf.gd/mepinitowolulo.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/kedusu.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/81673233701.pdfIn PDF document text
    • http://fobufalezax.epizy.com/powuvubivezugi.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/benulinibosiviwun.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/exponents_practice-_challenging_problems_answers.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD424 5080 bytes
SHA-256: 957a8b3c3746f7dc9fdc4d4a44ae1cfe8bb7d05f6fe361017d21bc8dfce5f4be
font_01_sfnt_off0000e583.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE583 9656 bytes
SHA-256: 615a020076c448fbb4612d10736b9f4c5daec357bf2efdd7de627ec41dd2081c

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