Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ccf6076cc2dd060…

MALICIOUS

PDF

84.4 KB Created: 2021-01-02 16:12:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 542494272ace284b35c30c9e70eda14a SHA-1: 96bcc9ab948dd8dc5d572716b6f1a4b0706beb5c SHA-256: 4ccf6076cc2dd060cdcd965fa15f1e37a3f0b7cea592bc891e5c5403537d29cb
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'traffset.ru', which is likely used to host a malicious payload or redirect to a phishing site. The document body, though heavily obfuscated, contains text related to 'Besan ke laddu video' and application metadata, suggesting a lure to disguise the malicious intent.

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://traffset.ru/aws?utm_term=besan+ke+laddu+video PDF link annotation
    • https://cdn.sqhk.co/pixisuja/hhnhOgi/28129368366.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371248/normal_5fd67be33e2d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375702/normal_5f8d2da614512.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366009/normal_5f8a6f4645e59.pdfIn PDF document text
    • https://cdn.sqhk.co/muruwake/RKwlaRV/37357351992.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367938/normal_5fa248e7ce856.pdfIn PDF document text
    • https://cdn.sqhk.co/sejixikerut/hedhchh/callaway_erc_golf_balls_reviews.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420235/normal_5fae673dd5381.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416919/normal_5fc485f294130.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://uploads.strikinglycdn.com/files/6aa72dec-e7e3-4e84-a625-89f9eb61e340/chemistry_nova_video_hunting_the_elements_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d3713dd-4d4f-46c8-9444-89b3100912a0/introductory_chemistry_6th_edition_cracolice.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0da5bd86-f523-44a3-98f0-65680baae38c/widesofitituwunobot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec1a085f-80b0-44eb-a835-82e22120f02d/64409603213.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/248b1206-ab5b-4949-8781-0d5cd07f6e5d/firujokaza.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/60071443058.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBA 4896 bytes
SHA-256: c4301d90fb009c759aabe86c7b8e46209e6df5d529e7a5b0deb0df69a650d31f
font_01_sfnt_off0000f07c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF07C 2328 bytes
SHA-256: 18b250f24057ce91e4a59b25c1eec79fa8b4d7e2cb9f6c0de02c7e032a072fd4
font_02_sfnt_off0000fb34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB34 10868 bytes
SHA-256: 7194ffa9253d63e7f85e6ec9df95a8dc95b1b3526104f7e335dd933cd57bf43d
font_03_sfnt_off00012077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12077 16224 bytes
SHA-256: 9743891101bd0987ef8d03b2c492ba01fbee4a66690f527b0b82737837df0f52
font_04_sfnt_off00013622.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13622 3020 bytes
SHA-256: 4c5989434beebc6a00057f1bc5867ae57b31ca9116cf80153bd2b341b27a4489

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