Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca87e476bd8183e3…

MALICIOUS

PDF

42.0 KB Created: 2020-08-25 02:21:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ee6019b7c16f66fa3d4ae9d8a09ca2d SHA-1: a0b2a4510005949e74a027c03eb615e9d5718492 SHA-256: ca87e476bd8183e31a0f715aadd8c25b406e44410bedc78492a6d22643dfc6bc
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify'. Additionally, it exhibits a PDF link farm pattern, with numerous links pointing to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains the same malicious URL and a benign Shopify URL, suggesting a lure to download further content or redirect to a malicious site. The primary intent appears to be user redirection to a potentially harmful resource.

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=fcpx+trailer+template+free
    • http://dejanus.torontopilipinosdachurch.org/uploads/1/3/0/7/130739090/jasagipuxekiwu.pdf
    • http://files.vittlevibes.com/uploads/1/3/1/6/131607027/3e749190b0.pdf
    • http://files.nespractitioners.com/uploads/1/3/0/7/130739907/8209662.pdf
    • http://bizuvab.katasangkhae.com/uploads/1/3/1/8/131856005/xipajitekijiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/7807/4020/files/geduranadunidumagux.pdf
    • https://cdn.shopify.com/s/files/1/0431/0931/8813/files/29064566537.pdf
    • https://cdn.shopify.com/s/files/1/0438/9063/9016/files/hartford_craigslist_org.pdf
    • https://cdn.shopify.com/s/files/1/0436/3524/5209/files/how_to_play_ps2_games_on_pc.pdf
    • https://cdn.shopify.com/s/files/1/0438/5672/4128/files/answer_club_regulamin.pdf
    • https://cdn.shopify.com/s/files/1/0429/1071/1971/files/90475152651.pdf
    • https://cdn.shopify.com/s/files/1/0429/0641/9367/files/93239203587.pdf
    • https://cdn.shopify.com/s/files/1/0434/0849/0663/files/56384145179.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/nefepewubo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8734/7360/files/97789441265.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b43.bin
158363c92f0c4c14a2c43c5f5286cb0d66326585ead209154d0996e4f53da183		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B43 4580 bytes
font_01_sfnt_off00006ad0.bin
f1c85be821f1e772e323c537abc7d9193e1be5c7a78ab1fae58489f3febea631		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD0 10096 bytes
font_02_sfnt_off00008d61.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D61 4324 bytes

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