Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b0b5d223a5fb75a…

MALICIOUS

PDF

113.1 KB Created: 2020-12-21 01:55:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 93dd44aec23d44e750413a69f6c68301 SHA-1: 2580c68fafc26e5ce84fe99241f20186cc45ae7f SHA-256: 0b0b5d223a5fb75acea1448409b31b022b799efb9a42a76672b0b6489150d3fd
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://gettraff.ru/aws?utm_term=bahubali+film++telugu+movie'. This URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://gettraff.ru/aws?utm_term=bahubali+film++telugu+movie In PDF document text
    • https://cdn-cms.f-static.net/uploads/4409797/normal_5f9a18c7ad8cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387229/normal_5fa973607e18b.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/vedexajawo/nexadojoxatabonilobevo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dd16d81-1963-4c66-9efd-aca2dfd10236/mupiwitetazo.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/barnegat_bay_fishing_report_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4013fe4-c4e7-46d9-a9b9-7d720b04dde8/thieves_guild_quests_morrowind.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/58821024981.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdd5508eb685147a09c9c9e/t/5fddc1c46a6ad7222f0724a2/1608368580525/84941931351.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/kamyab_jawan_loan_scheme_2019_form.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/technical_analysis_indicators_formulas.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/old_yeller_coloring_sheets.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_off000152e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152E3 5032 bytes
SHA-256: cdb36ac98afb83ebf3c9f356ef7617b38e26027055b9d523915c0c68c6981656
font_01_sfnt_off00016466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16466 5156 bytes
SHA-256: 9784ca9944c9e35b445acf13573bbdbb3f43c958ab07dd85cd2c30a6aa2381f8
font_02_sfnt_off000175e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x175E3 14048 bytes
SHA-256: f8561786901fae50cc8e3e4f84f6326c5bda714eb61b72d1956f06900d222ca7
font_03_sfnt_off0001a175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A175 16164 bytes
SHA-256: c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e

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