Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dbf370f6cc28ac8…

MALICIOUS

PDF

74.0 KB Created: 2020-11-14 21:50:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8d39fbc350bde0ae2b9df2bbe1ae149e SHA-1: 704d2825ddcce37822a102bf53f2e2a2ced72aa1 SHA-256: 7dbf370f6cc28ac87dbea87c899f9f25ebc04663d3a5930a303a76394ca6eac0
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-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://traffine.ru/strik?utm_term=e2s+guide+ffxiv PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378171/normal_5f8d43e3d1644.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383698/normal_5fa4829dbabb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372955/normal_5f88965fbba08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406497/normal_5f91ce1ff2941.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388280/normal_5fa84ec485382.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388612/normal_5fa98f575c05b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368741/normal_5f9a13f5cde69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418558/normal_5fa8e210a4ef1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415930/normal_5fa667ebb6152.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369313/normal_5f99cfc8e4eb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385859/normal_5fa80a2bd8f5c.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/xedewofuretujo/twelve_angry_men_study_guide_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/16034068496.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/60741220670.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/federalist_important_leaders.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7e1b8d1-6946-4946-9db8-d460ccf748be/5862395590.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06aa2f80-5660-43f0-a7c1-7f5125c79bf3/wasosu.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7FA 4952 bytes
SHA-256: eac22b3b91710b2b42de2fdc9001ecc0bb1631d43c959545ae0a6a12df304d86
font_01_sfnt_off0000d8fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8FA 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000e187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE187 10448 bytes
SHA-256: d13dc9ac2702f33c91ec987e58adf75878eb03c035e141401b9d3e1a92e587db
font_03_sfnt_off0001056d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1056D 16160 bytes
SHA-256: 31f54bf1b2a0bd5fcefce680aa7bc0ab7b2c48a0f9a6877104dd616c0c0a5462

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