Malicious PDF — malware analysis report

Static analysis result for SHA-256 183ff714d501ec04…

MALICIOUS

PDF

39.7 KB Created: 2020-10-11 13:51:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 9e0f326edf89157b37b077a0c256639b SHA-1: 952a4bc1fd7fb9bbca5a4cee4f1c666a219cd504 SHA-256: 183ff714d501ec04b66a4fff04bcec97b81671e2d3eefb44c11560326604e277
132 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/strik?keyword=dil+dhadakne+do+full+movie+online In PDF document text
    • https://site-1036649.mozfiles.com/files/1036649/80748307716.pdfIn PDF document text
    • https://site-1036885.mozfiles.com/files/1036885/26378273820.pdfIn PDF document text
    • https://site-1037821.mozfiles.com/files/1037821/fonakofurupim.pdfIn PDF document text
    • https://site-1038913.mozfiles.com/files/1038913/59895120918.pdfIn PDF document text
    • https://site-1036911.mozfiles.com/files/1036911/76502537144.pdfIn PDF document text
    • https://site-1048515.mozfiles.com/files/1048515/7500569224.pdfIn PDF document text
    • https://site-1039278.mozfiles.com/files/1039278/80865752593.pdfIn PDF document text
    • https://site-1037192.mozfiles.com/files/1037192/busarodutos.pdfIn PDF document text
    • https://site-1040507.mozfiles.com/files/1040507/puwedegoturixuruxebolixok.pdfIn PDF document text
    • http://files.atfsupply.com/uploads/1/3/1/4/131453817/6937511.pdfIn PDF document text
    • http://tovor.simplyelicia.com/uploads/1/3/1/3/131384169/b356792.pdfIn PDF document text
    • http://files.zouzousbasement.com/uploads/1/3/1/4/131409385/210311.pdfIn PDF document text
    • http://sivemafit.tutuperformingarts.com/uploads/1/3/2/7/132712593/xufivisivip.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/d07ee803-b12d-4bec-9f62-625f524a3fc1/88625201294.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1575a495-7ca8-479c-91d8-724f314ed733/1989636134.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE7 4996 bytes
SHA-256: 7ac411442341a4f54e50f992078a8fbb77f74769cbc5a475c32f2ccf25d7891a
font_01_sfnt_off00005fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC6 10992 bytes
SHA-256: 43b6af691cf68582868c2134b945679febc3bf785cace5d28ab31ad04949b686
font_02_sfnt_off0000844b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x844B 2832 bytes
SHA-256: ab0b30550c16f0218ea180a56450acc25083be48fb805cb0f6f475dfa13b8319