Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc6b724790aeff69…

MALICIOUS

PDF

69.7 KB Created: 2020-12-02 00:42:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 98ed34624efea9a2346efb35f0abf841 SHA-1: 52e8ea216fce57ae227bb97d5c9f17b358e68208 SHA-256: bc6b724790aeff69a11f3123f878f6584cd234f3121b069900494a599729873b
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains an embedded URI pointing to 'https://trafftec.ru/123?utm_term=how+to+draw+a+scroll+in+illustrator', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to drawing in Illustrator, which is a common tactic for phishing documents.

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
  • 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://trafftec.ru/123?utm_term=how+to+draw+a+scroll+in+illustrator PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379498/normal_5fa7e7a79fe3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471099/normal_5fa7f6d9d6be9.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/xijuxosisomuna/8th_grade_reading_staar_test_2015_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/gogipeninof.pdfIn PDF document text
    • https://s3.amazonaws.com/banijugoniragom/criminal_minds_spencer_reid_in_jail.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/alice_miller_knjige.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/androdumpper_apk_download_latest_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60f99223-dc97-4a5c-a714-ba29275214af/22341964978.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e1b1753-a2e8-4d50-9283-99d4653bcb47/midagozamewutiboneb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbaeb63f-4a5c-4e2f-83f2-6dd617941cb7/4711819298.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71348b33-c7ff-4c3d-a578-3087508880c7/75451925423.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/914e54ba-70ce-4955-bf52-9d6fc945f2a2/derek_walcott_love_after_love_youtube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a57961b-602f-4195-ba5c-115104ea0c65/wanuwijelor.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/temapudes.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_off0000d3d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D9 4984 bytes
SHA-256: 9764907f522138231e3b393bf30b52e62d02e7f5e375b9143885a05074e22e18
font_01_sfnt_off0000e4e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E5 10892 bytes
SHA-256: b89705e7a0cd57eb8e33833cebe85969f66a2f6a1ef08ec41039b6678ec2929f

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