Malicious PDF — malware analysis report

Static analysis result for SHA-256 299ec01a69ab0ed3…

MALICIOUS

PDF

69.4 KB Created: 2020-11-10 03:49:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: b41b9a09994d9111c87373202828d468 SHA-1: b5f0d4b51ccb30a2914e8b67f3fb257b02b81286 SHA-256: 299ec01a69ab0ed3840ffaca279c8e818fb59852deb4ae78ef5262a5ded65520
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector infrastructure, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The ML classifier and ClamAV also flagged this PDF as malicious. The document body, though partially corrupted, suggests a lure related to a 'remote manual', aligning with phishing or malware distribution tactics. No scripts were extracted, but the presence of malicious URLs is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/strik?keyword=harmony+ultimate+one+remote+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5f87350a4005d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366965/normal_5f88d35f2a92b.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/felasorarabipis/46949019112.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/177e0f71-761a-46cf-8a8c-a1935c438927/angle_of_repose_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/adobe_acrobat_reader_indir_gezginler.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/gofutuxukixinurafokiganaf.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/dodgers_vs_braves_today.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/dibagusebit.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/durorivow.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/11187871710.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/dbxv2_parallel_quest_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/agile_certification.pdfIn PDF document text
    • https://s3.amazonaws.com/rovotafavap/35041333629.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e01365a7-869b-430a-b840-0cba3935cdde/warframe_weapon_mod_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/10307911439.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_off0000d506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD506 4716 bytes
SHA-256: 7d607a66001e545d246af457da037cf6a1eb6d421feca540a25196387703216a
font_01_sfnt_off0000e4fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FC 10260 bytes
SHA-256: 432ca74e1a66fe5a2f6031eab12fce5766b93e5baac1b449e8d90a4a34b85295

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