Malicious PDF — malware analysis report

Static analysis result for SHA-256 d42a22bb59704a7f…

MALICIOUS

PDF

56.9 KB Created: 2020-09-04 14:57:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74b6c4e2a10253097a4f4709a28c8106 SHA-1: 22fde47f1b8d278b09bc173f1be043de07a62352 SHA-256: d42a22bb59704a7f81becd65788cf0d923d9325c17bd9910dfcca13c8b8c877f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL and other benign-looking URLs hosted on Shopify. This suggests a phishing attempt to redirect users to malicious content.

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.club/pify?keyword=journal+analytical+hierarchy+process+pdf
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/dobipabobulikekabov.pdf
    • https://cdn.shopify.com/s/files/1/0429/1277/6351/files/kikiluj.pdf
    • https://cdn.shopify.com/s/files/1/0432/0978/5499/files/26523506452.pdf
    • https://cdn.shopify.com/s/files/1/0431/5345/7320/files/formation_amnagement_paysager_montreal.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/fanozopok.pdf
    • https://static.usrfiles.com/ugd/191a6d_3029ac58861546f583499a27fecd4cfb.pdf
    • https://static.usrfiles.com/ugd/b0c8dc_9f3ca346501c48f8b3bc0e77914ab75d.pdf
    • https://cdn.shopify.com/s/files/1/0436/2862/6080/files/cidco_lottery_2020_advertisement_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0461/7617/4234/files/josikegusamiwawerizavuxed.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/gafuvidefolexobofukef.pdf
    • https://cdn.shopify.com/s/files/1/0434/1871/4264/files/wawijajemifuzi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6309/9040/files/lugopovigomotodive.pdf
    • https://static.usrfiles.com/ugd/a771bd_74a62797b13d4e4a94d4007635346bff.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_b1c0b099a7424c6aa0f1a6127a104573.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_off00009d46.bin
cada5ae9f3ba572d24e5c9d229b46fbd503b8efb326d257238b38f4b0396b010		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D46 5336 bytes
font_01_sfnt_off0000af6e.bin
4fd8da08ca9827b2f306e3899373db8437f1355f2cac1dfebb568222a4dfeae6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF6E 12412 bytes

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