Malicious PDF — malware analysis report

Static analysis result for SHA-256 2495ab6043c37ce8…

MALICIOUS

PDF

48.7 KB Created: 2020-08-10 15:02:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 964720eb9c816ad158b999c683115e02 SHA-1: 5545f290c5532ad5908f29414c3c8fc618812980 SHA-256: 2495ab6043c37ce82afd9cb4003a714b17244beb864c138e93151923006d62cc
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and a URL to a PDF file on Shopify, suggesting a lure to external content. The primary intent appears to be redirecting the user to a malicious site, likely for further exploitation or phishing.

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=apprendre+anglais+grammaire+pdf
    • http://files.roseworksconsulting.com/uploads/1/3/0/9/130969045/5863902.pdf
    • http://files.thenewstaketwo.com/uploads/1/3/1/4/131407734/soperorawese-kidufujikol.pdf
    • http://files.starduststudios.com/uploads/1/3/2/7/132712306/zidobetonumobudotino.pdf
    • http://files.jitfit.com/uploads/1/3/1/8/131856247/madepiz.pdf
    • http://files.mindfulmedical.vip/uploads/1/3/1/8/131857562/4103249.pdf
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/substitution_and_elimination_word_problems_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/nupapusefaxikemoxov.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/age_of_empires_2_build_order.pdf
    • https://cdn.shopify.com/s/files/1/0428/7873/0403/files/joxewidunozobuzusesin.pdf
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/24936860345.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/pandas_reorder_columns.pdf
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/40453708892.pdf
    • https://cdn.shopify.com/s/files/1/0448/2465/8082/files/zusuwu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdf
    • https://cdn.shopify.com/s/files/1/0447/8110/9405/files/toefl_certificate_sample.pdf
    • https://cdn.shopify.com/s/files/1/0440/5451/1766/files/30780488254.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/dogatagugepeja.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_off00006c61.bin
902da8ff7ad81ce87de4abbfdd53626023fd025e821139dc0b21e5e92a81bbf2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C61 6504 bytes
font_01_sfnt_off00007c97.bin
9d739143ee04a6a4ae52835e790cae5a5cd117e22e3923118c968e4f527e4752
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C97 5348 bytes
font_02_sfnt_off00008eaa.bin
3621a5969739a0d273c64332978203f4b70b6177b6c8234c5d27aa2aea0668d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EAA 11832 bytes