Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbbcc117c099edaa…

MALICIOUS

PDF

67.2 KB Created: 2020-12-18 01:56:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: b5f70e93b35c5d52a1c531d064eb3a77 SHA-1: 9046a8b9e40778bf847a7a1a73d8433dda5231f0 SHA-256: cbbcc117c099edaaaecb6c03f126d572713d85d98b65b95c135e7c3d71d13d1c
174 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is highly indicative of malicious intent. The ML classifier also flagged this PDF with a high probability of being malicious. While the document body is heavily obfuscated, the presence of a malicious URL and the ClamAV detection strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://ggtraff.ru/strik?utm_term=soccer+yellow+card+codes In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_5fd8942113384.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459055/normal_5fc5ca8276167.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/5fbce344be7cfc36344e8aaf/t/5fbd0a5b00f7af3919d54e0a/1606224475789/ge_microwave_jvm7195skss_installation_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc376cddf132613bbcdefad/t/5fce59a7f94b6402b24c3092/1607358887485/pirate_radio_movie_streaming.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc15943ea4a794d56482977/t/5fd14b12d279db5018a0b429/1607551762750/62731700665.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c3be72e-45a9-455f-8e67-7eb7593558fd/outlaws_of_ravenhurst_book_summary.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e110403f5353fd95a22f/t/5fc1f156f3de5e49b5aa0b6e/1606545751485/88018098112.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5943688c99b6d37c71ddd/t/5fcbcfab66ddd570b00004be/1607192493529/magic_mountain_mini_golf_hours.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/321e7f21-08d9-4023-be0f-60818c7671f8/sixujajuvivafomev.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe32ee3570fb44d1cdad11/1606300399305/easy_grammar_plus_student_workbook_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c666116eb00e3c4b5099/t/5fc1284fe6d49a06bbbb81e5/1606494287908/3353353460.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56483e2fce462bca9f74e/t/5fc7d58e66d87000d3bfe2fe/1606931857186/10336636194.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6cb2f3de5e49b55cfb10/1606380723074/miwifoxosalijavenusazibo.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA58 5232 bytes
SHA-256: 58453a768717efaceabd65f8c65a4ef416f2c32c82b365c7a377a520f945b6bb
font_01_sfnt_off0000dc4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4A 10680 bytes
SHA-256: 30a45e62a1f010dbee6fc61f1ee895cf0a497c73182479815220ba221bb2a403

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