Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c30c6183d9e8730…

MALICIOUS

PDF

98.5 KB Created: 2020-08-22 03:49:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cbb3ab34e8a666e070c17258afc90df SHA-1: beb2e066b58a89065e339b5f3380ce109ffaa60d SHA-256: 4c30c6183d9e87303e717fe3bffaeee006794f12ea5af4ff10683151150a8be0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=fallout+76+tadpole+archer+answers'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0434/4145/5256/files/assistant_loco_pilot_notification_2020.pdf'. The document body, though heavily obfuscated, contains text fragments suggesting a lure related to 'Fallout 76 tadpole archer answers', likely intended to trick users into clicking the malicious link.

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=fallout+76+tadpole+archer+answers
    • http://files.9488.kofcva.org/uploads/1/3/1/4/131409090/xumuxoson_simagafuko.pdf
    • http://pigoz.simonperathoner.com/uploads/1/3/2/3/132303054/3546616.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5256/files/assistant_loco_pilot_notification_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/computer_all_course_name_list.pdf
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/sokodekalodipopur.pdf
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/zipode.pdf
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/problemas_de_contaminacion_atmosferica.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/63940633630.pdf
    • https://cdn.shopify.com/s/files/1/0430/9804/6621/files/52526833922.pdf
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/zidokajuzuninedamotepuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/5168/7848/files/wimuxirojugiwapuzixe.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_off0001463f.bin
278ca72a691a6c37d9660cd63d2f9c90197604cd827107a61087114dd51b34c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1463F 5440 bytes
font_01_sfnt_off000158c7.bin
b3ebe22d3f906220592dcfd10bdb74ec4e77d2e2a32ead9e2fa3f7cd60e9bb93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x158C7 10540 bytes

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