Malicious PDF — malware analysis report

Static analysis result for SHA-256 a138b2914eca97bf…

MALICIOUS

PDF

48.0 KB Created: 2020-08-18 20:09:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75df7c2417636bd6217959fd325fefc0 SHA-1: f3778623d21beefefd113805765423c8d6ca5de4 SHA-256: a138b2914eca97bfb820d9dd7004372be02855f53d5591b18d8cf2c7aa8f0c66
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links. One of these links, https://ttraff.ru/pify?keyword=armageddon+movie+songs+free, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on benign platforms like cdn.shopify.com, suggesting a deceptive lure. The presence of a malicious redirector indicates an attempt to direct users to harmful 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.ru/pify?keyword=armageddon+movie+songs+free
    • http://vuromab.granitestaterunningcamp.com/uploads/1/3/2/3/132303117/b213de6f9.pdf
    • http://sogugekim.psychicmediumjudilynch.com/uploads/1/3/1/4/131438216/94aba9bc30.pdf
    • https://cdn.shopify.com/s/files/1/0430/2091/0746/files/31335419505.pdf
    • https://cdn.shopify.com/s/files/1/0432/6598/2632/files/pawafawixotalodomilolamu.pdf
    • https://cdn.shopify.com/s/files/1/0439/1839/3499/files/lowuroradikupebomi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/fundamentals_of_analytical_chemistry_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/2308/9307/files/19689817425.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28821374719.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/32513003322.pdf
    • https://cdn.shopify.com/s/files/1/0429/3017/6159/files/fisiologia_do_pancreas_exocrino.pdf
    • https://cdn.shopify.com/s/files/1/0431/8144/1181/files/53862029806.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_off000073fa.bin
d178bc7365be781b9374ab51aafe4061f53e18b75aefca28d56a17cb9b8bc056		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73FA 3136 bytes
font_01_sfnt_off00007f2f.bin
31654e8911a73447bdd4ee1907374ecdbf96b850c99741f928c97ca7212f7c16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2F 5244 bytes
font_02_sfnt_off000090f0.bin
f196f25875d1a3859c0112e1e6005ff1ed00fa4ccdb32b0b59165f9acc40386b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90F0 10008 bytes

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