Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbce61e6e609294e…

MALICIOUS

PDF

41.6 KB Created: 2020-08-10 06:54:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a8baeac24e1615b98cd2a105ebb7839 SHA-1: ce2a50207de0974a5f7224846d98543b02d7a5d7 SHA-256: dbce61e6e609294e8788ee0d9bd6fc32e4a7d1001d2377237f71d271c0065376
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a "New bible commentary pdf". The presence of a link farm further suggests an attempt to distribute malicious content or SEO manipulation. No scripts were extracted from this sample.

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.com/pify?keyword=new+bible+commentary+pdf
    • http://files.mrnicecream.us/uploads/1/3/1/6/131606257/vuxikitixotofo-lazolulu-lasurisowifuz.pdf
    • http://xiwemelip.mascotsworld.com/uploads/1/3/1/6/131637814/xalevikubaze-jujegava-pazipobomemo-zesamijosixevil.pdf
    • http://jowaxu.mamayeva.org/uploads/1/3/0/9/130969762/b3fd4fa831868a.pdf
    • https://cdn.shopify.com/s/files/1/0432/9455/6324/files/vebaxerepibudozirefogoze.pdf
    • https://cdn.shopify.com/s/files/1/0431/0564/8791/files/tufovuxitevevulipu.pdf
    • https://cdn.shopify.com/s/files/1/0449/4082/0648/files/jzyk_angielski_dla_seniorw.pdf
    • https://cdn.shopify.com/s/files/1/0431/3235/4727/files/paxenurowavoge.pdf
    • https://cdn.shopify.com/s/files/1/0434/9453/9429/files/javascript_mouse_events.pdf
    • https://cdn.shopify.com/s/files/1/0428/3206/8775/files/40038391122.pdf
    • https://cdn.shopify.com/s/files/1/0431/4945/9605/files/kobelesuvivakosizanuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/5641/4363/files/73348101289.pdf
    • https://cdn.shopify.com/s/files/1/0434/2104/0792/files/70154159919.pdf
    • https://cdn.shopify.com/s/files/1/0431/6004/3682/files/27827388650.pdf
    • https://cdn.shopify.com/s/files/1/0433/3761/3461/files/gastroenteritis_aguda_en_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0437/2827/3562/files/favupaxokax.pdf
    • https://cdn.shopify.com/s/files/1/0437/6857/8210/files/11259476284.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_off00006381.bin
fbaee7f6a94dbfb5a360ae8f5d71088b86bcd193f164ba4960b833fddd9ca29e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6381 5424 bytes
font_01_sfnt_off000075f6.bin
69e433d0c3fec191450dc9f8dbd4b52751a86a2c6530583be224c5c5c5599dc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75F6 10704 bytes

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