Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ec8a9c740fe4b43…

MALICIOUS

PDF

63.7 KB Created: 2020-12-03 21:01:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: ec35d589030958a8387987c9f1ca4cca SHA-1: 26fa0940db45dfce5ebdbcf9d443a73b09b3c9f1 SHA-256: 7ec8a9c740fe4b43505929d88465dfe3766a4e10e06422602b3f7403370f8e67
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ggtraff.ru/123?utm_term=labrador+beagle+mix+for+adoption' is identified as a potential phishing or malware distribution vector. While no scripts were explicitly extracted, the PDF structure and the malicious URL strongly suggest an attempt to redirect the user to a harmful site, aligning with spearphishing tactics.

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://ggtraff.ru/123?utm_term=labrador+beagle+mix+for+adoption In PDF document text
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/bakuxeluduwigemul.pdfIn PDF document text
    • https://zobejonimofov.weebly.com/uploads/1/3/4/3/134354570/4cd719a8e.pdfIn PDF document text
    • https://rosanibo.weebly.com/uploads/1/3/4/8/134873488/845fb6aaf3d9a3.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/zetare/yahoo_answers_not_working.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da2d167a-318c-4206-bf00-235f64e428b5/47773004775.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc28422085bf90c0e0766be/t/5fc553352dd96f59189e3a29/1606767414475/castle_roblox_riddle_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc67727bd14ff0dd2c2c47f/t/5fc8ba05d32d01267800ab13/1606990342892/bluetooth_headphones_switch_docked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fcb205e-1703-436b-8ca4-0f69280e0586/nurinagowimefeleget.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2bfbc2cf09257bd77efeb/t/5fc5e8d05147b14804fec9a7/1606805713052/xapufidowufetuxubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60edc3c4-ef57-436d-b6ca-52ce3fe17b42/71710884199.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0abdf8cdb769c6aa5e77/1606290109715/5877320538.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_off0000bb3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB3B 5332 bytes
SHA-256: cf26cd42b2a49ad004aa45b5e47893cf107ed8549a80546736129dd62668b2ea
font_01_sfnt_off0000cd50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD50 10888 bytes
SHA-256: 75538ac6a2d613f5b1b46eb41309ef7332d732111c503cb7730d3f9759e6bc5f

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