Malicious PDF — malware analysis report

Static analysis result for SHA-256 93657d156956375a…

MALICIOUS

PDF

38.3 KB Created: 2020-08-18 17:24:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66837e7c7478b152e04f1d5c09e8c262 SHA-1: 1ec5a03f83a8db63c3f61e41c53bbfe516dbf679 SHA-256: 93657d156956375ac79ebf23a48733d1c03c433fed9bcfc2bf9b533a67a6cd8f
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 link farm pointing to a known malicious redirector. The primary redirector URL is 'https://ttraff.cc/pify?keyword=hd+art+wallpapers'. The document body, though heavily obfuscated, contains this URL and other links hosted on Shopify, suggesting a lure to a malicious site. The presence of numerous links points towards an attempt to distribute malicious content or phish users.

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.cc/pify?keyword=hd+art+wallpapers
    • http://files.conniehardyreflexology.com/uploads/1/3/1/3/131397973/powumak-sukiwatinarovem-wogefudoxiv-vowaxatajasaze.pdf
    • https://cdn.shopify.com/s/files/1/0433/4573/9941/files/senadenoge.pdf
    • https://cdn.shopify.com/s/files/1/0433/9276/2017/files/20646180102.pdf
    • https://cdn.shopify.com/s/files/1/0429/1330/0647/files/najoxajefililigoxavaba.pdf
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/79027907746.pdf
    • https://cdn.shopify.com/s/files/1/0441/1519/8104/files/segilabexedanobivega.pdf
    • https://cdn.shopify.com/s/files/1/0440/0631/0046/files/2769253286.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7535/files/download_amar_chitra_katha_comics_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8930/files/vapaxut.pdf
    • https://cdn.shopify.com/s/files/1/0437/8735/4270/files/69139222502.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/sound_barrier_sheet_supplier_in_singapore.pdf
    • https://cdn.shopify.com/s/files/1/0430/7684/5728/files/migozabazap.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/gonejen.pdf
    • https://cdn.shopify.com/s/files/1/0431/5480/0802/files/deezloader_remix_apk.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_off000057e6.bin
4cac19dd355503699903881034345c39f835026f28bc9aba885832af1957dfce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57E6 5004 bytes
font_01_sfnt_off00006907.bin
132119299514f7cb488935cabb6eb476fe4466613703dbb811fff4e95050f8d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6907 10464 bytes

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