Malicious PDF — malware analysis report

Static analysis result for SHA-256 47f863b8b3e52e46…

MALICIOUS

PDF

70.2 KB Created: 2020-12-21 04:22:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f73b0d9da4a80baa64eb6ed11e29c27f SHA-1: 17eb48d73bc33fa70f145e51fea813ec1f54be7e SHA-256: 47f863b8b3e52e4687d74c029df1e68cdef14939b2b81b7ab6c837c7bb7cd3b3
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://cctraff.ru/123?utm_term=teclado+de+computadora+en+ingles'. 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, supporting the assessment of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://cctraff.ru/123?utm_term=teclado+de+computadora+en+ingles
    • https://cdn-cms.f-static.net/uploads/4383678/normal_5fb47960d7d6e.pdf
    • https://cdn-cms.f-static.net/uploads/4374359/normal_5fa6c89cd7e75.pdf
    • https://static.s123-cdn-static.com/uploads/4449965/normal_5fc59d28860cb.pdf
    • https://cdn-cms.f-static.net/uploads/4366339/normal_5f872fd2e4787.pdf
    • https://static.s123-cdn-static.com/uploads/4470678/normal_5fcaa30be8606.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/wefadep/ncert_chemistry_book_class_12_in_hindi.pdf
    • https://static1.squarespace.com/static/5fc4ca47ab79f442f24277df/t/5fcac7d07365866157a7e256/1607124944998/ropokuvesotesoni.pdf
    • https://s3.amazonaws.com/rebomedug/dslr_blur_background_camera_app.pdf
    • https://static1.squarespace.com/static/5fc5994cea4a794d56652742/t/5fd644705b1f6f7539d327f4/1607877744913/25278549932.pdf
    • https://static1.squarespace.com/static/5fc55556bdb33045eedfa18c/t/5fc9e3039bc93d20d9b12f66/1607066382976/talking_rolly_puppy_dog_pals.pdf
    • https://uploads.strikinglycdn.com/files/cf96e7b3-a8a9-4bca-9406-191145f58ad7/buzegiwabojovima.pdf
    • https://static1.squarespace.com/static/5fdc81a80526ad1a5999a26b/t/5fdd23feb87376320ea22116/1608328190024/95945065276.pdf
    • https://uploads.strikinglycdn.com/files/79fb8123-6457-49a3-8b58-69f6d6c92aa6/6836327553.pdf
    • https://static1.squarespace.com/static/5fc532aedf132613bbd9a2a5/t/5fc5f9053c02f22b9dda3afb/1606809862654/hammer_black_widow_legend_price.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7de.bin
6a44f1bbeac132d436ec57dbfb381c77670540d6c57aa8a4778c72885dc9209c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7DE 5224 bytes
font_01_sfnt_off0000d982.bin
c4b319373249d58db25f8681a4762caf2a71ee41d9b6d5c9b104eb7414daf6d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD982 10540 bytes
font_02_sfnt_off0000fbe3.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE3 4324 bytes

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