Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec605caebdfbf4d3…

MALICIOUS

PDF

77.3 KB Created: 2021-03-02 16:07:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d54133da8356e18bf65d24298e4b80bd SHA-1: 2a45d4458d242f05289acf73ad4edd54900f86bc SHA-256: ec605caebdfbf4d3694c656ce480f444199417a77d78c39f58252777156a8248
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 0.9997

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://zajinet.ru/wix?keyword=words+start+with+i+to+describe+someone PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4422897/normal_5ffbdac0d66a9.pdfIn PDF document text
    • https://sevakozo.weebly.com/uploads/1/3/4/6/134677934/sepajavoj.pdfIn PDF document text
    • https://sakirirolero.weebly.com/uploads/1/3/1/3/131383462/lifozunigugedir.pdfIn PDF document text
    • https://nubeboganiroj.weebly.com/uploads/1/3/1/3/131384383/6615708.pdfIn PDF document text
    • https://gitapelo.weebly.com/uploads/1/3/2/6/132682700/8004295.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461766/normal_602c0a7b16df4.pdfIn PDF document text
    • https://jiresuzava.weebly.com/uploads/1/3/4/7/134706808/tugagapor-sikug-zefegemif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497685/normal_5fdc19c8697ff.pdfIn PDF document text
    • https://vuzavadakugodo.weebly.com/uploads/1/3/4/8/134857872/f4747e2a4d47b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380854/normal_60126f5ccf462.pdfIn PDF document text
    • http://vukuradi.mygamesonline.org/71981975315.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/mizeteb/taniroxerapaxijozi.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/nujazotagupibasubizufitum.pdfIn PDF document text
    • http://sutexuvidag.myartsonline.com/how_to_change_a_ceiling_fan_downrod.pdfIn PDF document text
    • https://s3.amazonaws.com/memexelu/xifujalisaxaru.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/bumexatenefakegadomuso.pdfIn PDF document text
    • http://zepizevut.atwebpages.com/entry_level_international_business_jobs_los_angeles.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/mejabetodadimedezegumiwab.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/herbalife_product_information_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/goa_online_portal_employment_certificate.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_off0000f0d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D8 5392 bytes
SHA-256: 01d881a075b7cda2d4f8f5047137464f40e811b2c4c65a3257c83bb5aaaa4f0a
font_01_sfnt_off00010317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10317 10852 bytes
SHA-256: 0be261903b1ffbe29556de84acd61b05256e9acfb1e8ba2bf398e694bd01141d

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