Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c240c11da8bbd39…

MALICIOUS

PDF

120.4 KB Created: 2020-12-02 17:35:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: bdffe5f5c9ad690fb430d466a3f8f167 SHA-1: e1910ef87e5832ffc422aaaa21142f21618f5e69 SHA-256: 1c240c11da8bbd391ba990fe1bc07b2956703caffc10ebacf48102923ec3e8ae
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 'traffine.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'Durga saptashati telugu pdf free', indicating a phishing attempt to trick users into downloading the file.

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/aws?utm_term=durga+saptashati+telugu+pdf+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4492281/normal_5fbaf6a03b971.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370302/normal_5f8e3b27bdc51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413346/normal_5fa093d210a6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494888/normal_5fb43e5469d1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389568/normal_5f9c6809662b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373526/normal_5f89d2e8c0ca3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476147/normal_5fbe08bd52a0d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://static1.squarespace.com/static/5fc0eacbc14dfd36fef1915a/t/5fc243263c6ccf69f3a86f63/1606566694421/57549982538.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf64c2c6de34c7a3840fe/1606219343122/ryobi_254mm_radial_arm_saw_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dde4403f5353fd9590af/t/5fc172034f9837572016202c/1606513157078/51076525126.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe100d173fb5383b699085/1606291470191/paula_deen_chicken_salad_stuffed_tomatoes.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/guveles.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_off00015b84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15B84 5300 bytes
SHA-256: 83b933b29d7b904f22e8bec90411a1fc43c5ddfcfd9e169b69c7cc94368db30a
font_01_sfnt_off00016d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16D8B 10240 bytes
SHA-256: 4afba3c685d2e1ed48332de36d00b4cfb9f7e9e90ae1aa1fb16b360457667a34
font_02_sfnt_off000188d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x188D7 18208 bytes
SHA-256: acee9196c0e715ce2d06793538a4ed3eb40758b3d1c054dc2788af9c71e0467d
font_03_sfnt_off0001bf4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BF4C 16164 bytes
SHA-256: c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e

Open this report in the interactive analyzer, or submit your own file for analysis.