Malicious PDF — malware analysis report

Static analysis result for SHA-256 c304e81fa55088e8…

MALICIOUS

PDF

45.9 KB Created: 2020-08-18 20:40:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4097276f5de62b715912e2a99732cd3d SHA-1: c0d61f9ffe7189453c0dec38c0509d9c843f0164 SHA-256: c304e81fa55088e87f28a8163c9be294c198caa39b25bb3d66350a8eba7b963c
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to appear as a Volkswagen Beetle manual, but it redirects to a malicious URL. The primary heuristic indicates a malicious redirector link, and the document body contains the malicious URL and other SEO-optimized PDF links. The file's purpose is to redirect users to malicious infrastructure.

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=2005+volkswagen+beetle+manual+pdf
    • http://files.tripointlutheranparish.com/uploads/1/3/1/4/131407565/tanitovuka.pdf
    • http://zirison.info-prose.com/uploads/1/3/1/8/131871479/bakevi.pdf
    • http://files.midlandboxerclub.com/uploads/1/3/2/7/132710497/291998.pdf
    • https://cdn.shopify.com/s/files/1/0435/2458/7674/files/7503596004.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/57268508529.pdf
    • https://cdn.shopify.com/s/files/1/0430/6881/7562/files/raperexexutelul.pdf
    • https://cdn.shopify.com/s/files/1/0428/5811/9334/files/43092967213.pdf
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/75837073214.pdf
    • https://cdn.shopify.com/s/files/1/0438/4977/7312/files/wevowafajasabegegopunomu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5653/7505/files/muscle_gain_workout_plan_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/8174340493.pdf
    • https://cdn.shopify.com/s/files/1/0441/1208/5144/files/nasaligaxokabobafaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7866/files/fatoguxodipud.pdf
    • https://cdn.shopify.com/s/files/1/0436/1604/3168/files/zazikiledela.pdf
    • https://cdn.shopify.com/s/files/1/0433/2139/3320/files/zobivogedutigalajuporases.pdf
    • https://cdn.shopify.com/s/files/1/0449/7424/3999/files/algebra_word_problems_grade_5.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/binary_file_to_online.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_off000072b8.bin
032cd12935ce08c97132ab92ea16665a1f2dd1cea1e44220d478a7256d6195ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B8 5924 bytes
font_01_sfnt_off000086e1.bin
4c0553067173b669a9a6c095e7f91eb729e0038461cf5d3aef4b577b795652f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86E1 10524 bytes

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