Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d291d3058830a48…

MALICIOUS

PDF

77.5 KB Created: 2021-04-08 00:08:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 81d3629ae73704c475b35a89116baeec SHA-1: d7b5ad3fa0d4f7ad5e3465a1c5a4ba9c8f03c025 SHA-256: 4d291d3058830a486492c6866967e627405462951cb4850d26dee5468c46b676
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 0.9993

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://jumiwimov.ru/strik?utm_term=what+topic+is+ivan+ilyich+thinking+about+in+this+excerpt PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426955/normal_601f23782664b.pdfIn PDF document text
    • http://ranking-se.com/the_standard_nyc_movie_nighttf7mq.pdfIn PDF document text
    • http://bitjoms.xyz/how_much_do_military_aircraft_mechanics_makej5ph8.pdfIn PDF document text
    • http://nuwojukow.mygamesonline.org/bodalime.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406776/normal_601d126a067b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455907/normal_5fcbec583878d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494875/normal_60053b190f784.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448096/normal_5feb59277fb62.pdfIn PDF document text
    • http://mivetys.xyz/snackbar_android_text_colorhck6b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467300/normal_6003b8ea16fc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476274/normal_6060e40863f60.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380079/normal_605037fb67676.pdfIn PDF document text
    • http://zagejudivavi.sportsontheweb.net/73395330370.pdfIn PDF document text
    • http://catsism.com/polar_and_nonpolar_covalent_bonds_worksheeto0728.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/22764766426.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455380/normal_5fcdc6313e2a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418001/normal_600f5e3ac50f1.pdfIn PDF document text
    • http://kartaidatodemeleri.com/68845701109wosx8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495262/normal_5fc6f851a4c8c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385862/normal_5fdcc8d0462f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382430/normal_602d9685ec4ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gakilasefit.myartsonline.com/36135102607.pdfIn PDF document text
    • http://zevesijuduma.atwebpages.com/seadoo_service_manual_free_download.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 7

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_off0000f1a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A4 5640 bytes
SHA-256: 820606c658bb108ed9d474dd1faa4ff46027510b4e04af7092c4a142cda1df26
font_01_sfnt_off000104eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104EB 10316 bytes
SHA-256: 9e4fb3ff1c468de5acd9fa5e249a9666e1cd9c0fe00ccf760b1b66c16a3fb38f

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