Malicious PDF — malware analysis report

Static analysis result for SHA-256 355487fc72165c72…

MALICIOUS

PDF

41.6 KB Created: 2020-08-22 18:31:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59dd9b9af17b6a1285edb780ead3145d SHA-1: bc2eead5d10767c33d6c866c1b935276c9c13030 SHA-256: 355487fc72165c72da0f4b225dda5976a9f51cf6825b2910688a1ad46b1ef7db
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=eye+divine+cybermancy+research+guide', suggesting a lure to a malicious site disguised as research material. The presence of multiple Shopify links, some flagged as benign and others unknown, indicates an attempt to obscure the malicious intent through a large number of outbound links.

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=eye+divine+cybermancy+research+guide
    • http://xoxida.mobilefarmersmarket.org/uploads/1/3/0/8/130874011/futikipome.pdf
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/boboli_gardens_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/1921/4756/files/68929109853.pdf
    • https://cdn.shopify.com/s/files/1/0433/4603/4853/files/40068388909.pdf
    • https://cdn.shopify.com/s/files/1/0437/2050/7546/files/sezumogiverexoloven.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/soluniragikigebeb.pdf
    • https://cdn.shopify.com/s/files/1/0434/4184/8470/files/datasheet_bf_422.pdf
    • https://cdn.shopify.com/s/files/1/0464/7957/3160/files/3682226547.pdf
    • https://cdn.shopify.com/s/files/1/0434/7081/5397/files/bexetan.pdf
    • https://cdn.shopify.com/s/files/1/0431/0348/6103/files/fisonewolejorironozatoxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4921/2311/files/72768644930.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_off000064a6.bin
0fc4ae535e73087be2d6d41219c7e78d89da79a56e8de619858dd686b3b9926b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64A6 5580 bytes
font_01_sfnt_off00007774.bin
80cab04b657804da1dfe10c9819a152e8ac9002f3929e2fb685f146fe129ae9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7774 10096 bytes

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