Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc256df0a91a990e…

MALICIOUS

PDF

55.3 KB Created: 2020-08-29 02:46:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abe3dfaeeb958d6e16f0d190bb594ba7 SHA-1: d045029eada51fba3a04b5d2c76efd49c6567b80 SHA-256: cc256df0a91a990edb8b26c1ce979df3b1775252c61c7d69962e2109481f96d7
150 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=pag+ibig+acquired+assets+in+dasmarin'. Additionally, another critical heuristic indicates a PDF link farm, suggesting an attempt to distribute malicious content or SEO manipulation. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious redirector URL is a high-priority indicator.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=pag+ibig+acquired+assets+in+dasmarin
    • https://static.usr
    • https://static.usrfiles.com/ugd/b8c837_4319f67e1db144a1a62b5839a94f623e.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd371dce41d54ed8b2eb45b5ebefa1a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_e5eb673b6412452e94fc6eca72eff72b.pdf
    • https://static.usrfiles.com/ugd/b8c837_a09475c74ccb4abcb9ba9c412437d20f.pdf
    • https://static.usrfiles.com/ugd/b8c837_ddbbd5f0e68a4e4d8a973a8d228d58dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_741b7f6a61d14d2093375e09dc85b30b.pdf
    • https://static.usrfiles.com/ugd/b8c837_763f67862ff24528ba912f4eb9f8db6d.pdf
    • https://static.usrfiles.com/ugd/b8c837_9830e9745a504edab2f981aeb841c809.pdf
    • https://cdn.shopify.com/s/files/1/0433/4980/3159/files/51387246219.pdf
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/architecture_thesis_examples.pdf
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/performance_review_phrases_for_attitude.pdf
    • https://cdn.shopify.com/s/files/1/0429/7618/2426/files/47340819702.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/java_version_8._1.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mirizopenifipometetotagoz.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_off00008b4d.bin
b4bcd1569f26e03ac772989de35bec6efb4df792bf524100cdb86e1835027340		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4D 5492 bytes
font_01_sfnt_off00009dc9.bin
f5ad8f55d83e0d0f11b77c76d8b0441d7bd9eb57058926d979b94618a76a2c15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DC9 16508 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.