Malicious PDF — malware analysis report

Static analysis result for SHA-256 3683f0a247a69e8c…

MALICIOUS

PDF

77.9 KB Created: 2020-12-23 09:44:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a54b75ad6b821609ed8232688aec16fb SHA-1: 49b27191782101a2a8a32052a32af50873d8b360 SHA-256: 3683f0a247a69e8c61b05b4883f5326eaeeab5136765c127c0a7849e96e52b29
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/123?utm_term=hill+climb+racing+2+hack+mod+apk+ios PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4424026/normal_5f9c82b685d2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410222/normal_5f9f6351e8862.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479454/normal_5fa80cd84fa72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390323/normal_5f9fb146b2a8a.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/vonutavekip/24277097942.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64bcb8139af037669cba4/t/5fcb40ec9cf56e0e8b0eb7d6/1607155952749/bauer_supreme_s27_ice_hockey_skates_youth.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/cisco_ccna_security_study_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2b26e405d5340f3353adc/t/5fc6861fbc819f1cf4bb0922/1606845983766/nevetejev.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fe11ca3e3ba044ee8dffad7/t/5fe24f257b20a60e9ff41332/1608666917797/telangana_old_folk_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/tufovaviwuk.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/application_form_schengen_visa_spain.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5b2301d-4c93-4ef0-aeb2-8ecc2630a177/finabalinapaxi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf556efa04221c71174bcb/1606374767551/spiked_lug_nuts_silverado.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11a4c405d5340f32abf29/t/5fd052f7125f6a657a4a0909/1607488248839/basketball_legends_unblocked_games_24h.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1B1 5784 bytes
SHA-256: 1be77e4711acac42abe7eaffa770c769f1c7fb4b0353c9275f732481ccc96d22
font_01_sfnt_off0000e525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE525 1676 bytes
SHA-256: 214d9e6db88bfdf0fe735a3c95a24f1ac3d0fce992d4e78d2a8603966f468f18
font_02_sfnt_off0000ed97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED97 11808 bytes
SHA-256: 1e72965b9f9f209b5b2359d69a18d2fea6a87b63a7f1277f21b812da965d1154
font_03_sfnt_off0001157b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1157B 16036 bytes
SHA-256: 52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550

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