Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e2a6f09d36949d1…

MALICIOUS

PDF

70.3 KB Created: 2020-12-24 20:56:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d7722be2b4db1822db03cd778386d31e SHA-1: 9f7cc1e2066745c52138ff5bd8e641daa7fd66d4 SHA-256: 6e2a6f09d36949d10f352371a96d6e0525e3559f2a940afee32438e1053de8d8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'trafftec.ru', which is likely a phishing or malware distribution domain. The PDF structure and embedded content suggest it's designed to trick users into visiting this external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=pentagon+city+mall+nail+salon PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413119/normal_5f9b72c1bb306.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402517/normal_5fe06b9232b34.pdfIn PDF document text
    • https://cdn.sqhk.co/pufojoloz/jgfT4de/supodavimenefosavabo.pdfIn PDF document text
    • https://cdn.sqhk.co/zesunotu/IIKjf0C/jopemor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371248/normal_5fc78eb1445a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3912bfe4-d92b-464d-a258-01d4bd42c993/lejesojukisoduwuno.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/autodesk_uninstall_tool_2013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3d51ed6-cdf5-431a-b9f8-f1a9ab25a1f2/33818356225.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/domingo_garcia_belaunde_libros.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44b0e104-ba68-4109-a99b-29f20209ee37/allnewbooks_new_jersey.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11d775c7-5fe7-427e-8bfc-184fdc5abce3/himnario_adventista_nuevo_236.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/44111266994.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2d0ccdd-4b1b-41ec-a48b-b9d94ad180b5/58639140211.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bfcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFCC 5124 bytes
SHA-256: 15e9dc8335586b3b862af6e540651be4372a4187be94321e5902a28605642eda
font_01_sfnt_off0000d13b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD13B 11336 bytes
SHA-256: 52e0bc335cd72b7ad9903bfab84cf0c59a95b68b016c8c1569823843960a4c9b
font_02_sfnt_off0000f6d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D4 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e

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