Malicious PDF — malware analysis report

Static analysis result for SHA-256 3066cd31f5a34b12…

MALICIOUS

PDF

83.0 KB Created: 2020-08-23 10:14:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c67bd5da47db121aa63450f4b8307c4 SHA-1: c63e49914023e5278d0844d400b1ff7c7139ba7f SHA-256: 3066cd31f5a34b129e2d134b371e5d40e220d0e8656e98edc56b050d743f12c5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=adam+lambert+american+idol+performances+in+order'. Another critical heuristic indicates a PDF link farm, suggesting the document is part of an SEO poisoning effort. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent. No scripts were extracted, but the presence of multiple links points towards a redirection-based attack.

Heuristics 3

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.ru/pify?keyword=adam+lambert+american+idol+performances+in+order
    • http://files.gospelrescuemissionfellowship.org/uploads/1/3/2/8/132815787/e597f4564b71.pdf
    • http://digulume.nakitahogans.com/uploads/1/3/0/7/130776031/6265880.pdf
    • http://jirod.spec22sales.com/uploads/1/3/1/6/131637814/6541519.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/quadratics_with_imaginary_roots_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/5598/6341/files/55982471024.pdf
    • https://cdn.shopify.com/s/files/1/0448/3537/3213/files/aosp_extended_launcher_apk.pdf
    • https://cdn.shopify.com/s/files/1/0429/1251/4201/files/business_plan_project_for_mba_students.pdf
    • https://cdn.shopify.com/s/files/1/0430/9195/1769/files/ave_maria_lyrics_latin_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/9056/6556/files/poberizebipibilo.pdf
    • https://cdn.shopify.com/s/files/1/0437/7031/4903/files/caracteristicas_de_las_ciencias_formales_y_factuales.pdf
    • https://cdn.shopify.com/s/files/1/0440/5044/8549/files/norton_toolbar_firefox_42.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fdac.bin
009c82d527b2dcc27689317cd251b3b5ef9802791c672f6447214c300665b2ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAC 5432 bytes
font_01_sfnt_off00011006.bin
c19c3fad6850e7f86b28c114e126fb018c2f70c323060e6c0a8a7a5ca806c994		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11006 14948 bytes

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