Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b21c96c80caea8a…

MALICIOUS

PDF

47.7 KB Created: 2020-08-22 07:46:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a0fc01c7c77183217f9d95cf3f2a243 SHA-1: b59e04056ba791167b31d03bb478cff1526026f9 SHA-256: 1b21c96c80caea8a975266b003edf3b6afd600e831965a7581be90eb13f87af2
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=aerosmith+greatest+hits+rar, which is likely used to redirect users to a phishing or malware-hosting site. Another heuristic indicates a PDF link farm, suggesting an attempt to artificially inflate search engine rankings or distribute content through numerous 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.com/pify?keyword=aerosmith+greatest+hits+rar
    • http://paguti.andrewtozerfineart.com/uploads/1/3/2/7/132740900/wonufezetawiro-rezetusa.pdf
    • http://xirim.w-here2stay.org/uploads/1/3/2/6/132682347/4794229.pdf
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/84020826620.pdf
    • https://cdn.shopify.com/s/files/1/0437/7939/1637/files/filmywap_2018_new_bollywood_movies_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/tuparesozufakasit.pdf
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/sazamirekefujobobifum.pdf
    • https://cdn.shopify.com/s/files/1/0429/7791/9129/files/75764291373.pdf
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/89442842835.pdf
    • https://cdn.shopify.com/s/files/1/0434/5446/4165/files/mirep.pdf
    • https://cdn.shopify.com/s/files/1/0428/8138/4604/files/sabotufafakaxero.pdf
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/amina_al_mufti_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/3227/3319/files/36374757387.pdf
    • https://cdn.shopify.com/s/files/1/0429/0599/3375/files/wuzirumimegubefukasewoz.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/bacterias_gram_positivas_aerobias.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_off00007c79.bin
a4354fe59868771d5163bd6ce8f2b0eb6a9113ab27daf6eb10f094593180db5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C79 5056 bytes
font_01_sfnt_off00008d84.bin
21916a91e01d17ce40a68029406946638cd5ed4f3fc1267e710773d13041edc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D84 10768 bytes

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