Malicious PDF — malware analysis report

Static analysis result for SHA-256 701ee3704ca47676…

MALICIOUS

PDF

85.2 KB Created: 2020-12-03 16:51:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: ace6d07eeff7e2c4f841980b0ac19169 SHA-1: 10872bdab326de2f382f7e9872e06b43c969b5a4 SHA-256: 701ee3704ca476760460ec643d6c4d75ab754ac4d87b8f9f40faedfb98008455
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffking.ru/aws?utm_term=aae+dental+trauma+guidelines'. This URL is likely used to deliver a malicious payload or phish for credentials. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffking.ru/aws?utm_term=aae+dental+trauma+guidelines In PDF document text
    • https://cdn-cms.f-static.net/uploads/4460970/normal_5fbe06a76d9ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367302/normal_5fa8559acc8c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452587/normal_5fa1a50656171.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383156/normal_5fa4ea72c6a80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424040/normal_5f99f7a470673.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453103/normal_5fbbeeb4a4795.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489042/normal_5fbe6d7574015.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448115/normal_5fc1789e0d0cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375525/normal_5f8fe4483ca3d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0f975bf71053ccb109642/t/5fc24da93485235c861227e1/1606569385764/tovuj.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3486312facd59cebc5192/t/5fc3d5e5bc819f1cf44e4f7e/1606669798489/wells_fargo_atm_check_deposit_endorse.pdfIn PDF document text
    • https://s3.amazonaws.com/nisiwanolom/self_demotion_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/82713803989.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_off0000fe3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE3A 5132 bytes
SHA-256: b297313792db21303279f9957fea69cca9b907cd7af9dccd33e20e60f2603bcb
font_01_sfnt_off00010f96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F96 10108 bytes
SHA-256: 37c7db0c8ae0353d83115020ebb718adc42ad8813e2e3ba226ae1081dd0c0b74
font_02_sfnt_off00013235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13235 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e

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