Malicious PDF — malware analysis report

Static analysis result for SHA-256 e327d3a2f9341f8b…

MALICIOUS

PDF

42.6 KB Created: 2020-08-17 13:10:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c392bbd71d1d105a877eacaa1f67370 SHA-1: 027e63fc718379a55f366e1e820180bc288cd5f9 SHA-256: e327d3a2f9341f8b31c81020e2c555e9c9e78ae0140dcdd0f79a5a72f12be9e2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of the primary URLs, 'https://ttraff.ru/pify?keyword=reportage+didier+deschamps+canal+plus', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is a key component of the attack. The presence of numerous links to PDFs hosted on platforms like Shopify indicates a strategy to distribute content or potentially mask malicious activity.

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=reportage+didier+deschamps+canal+plus
    • http://basub.spcervantes.com/uploads/1/3/1/4/131408027/gadezoladujav.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4658/files/rabakijuvujowa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/85451800325.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/abstract_and_concrete_nouns_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/7750/1095/files/18202757132.pdf
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/runiziz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dovaxetudomorunuk.pdf
    • https://cdn.shopify.com/s/files/1/0428/7738/6918/files/zuzuwavojenepur.pdf
    • https://cdn.shopify.com/s/files/1/0450/4171/3310/files/antagonistas_adrenergicos.pdf
    • https://cdn.shopify.com/s/files/1/0434/1350/4156/files/61610752166.pdf
    • https://cdn.shopify.com/s/files/1/0435/2675/0357/files/lol_esports_standings.pdf
    • https://cdn.shopify.com/s/files/1/0440/7335/3366/files/metal_gear_solid_5_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/7319/1580/files/10400786070.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5144/files/tilifutelinejotimunoj.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_off00006347.bin
594ed240048a2ecf36210fa11c6df8b3395ff957d417866b1d7a49833b79a503		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6347 5496 bytes
font_01_sfnt_off000075d4.bin
2837261401d09123416be24e1c08fa7024f888330625519fa91c4712cb986802		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75D4 12172 bytes

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