Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ca2e04fbf106ca6…

MALICIOUS

PDF

49.9 KB Created: 2020-08-23 03:29:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97644603f51de4ceb10606330868eed6 SHA-1: 68478c638580ba40d0bc2e76ecfb22b40cbb3d71 SHA-256: 1ca2e04fbf106ca605e9a6c1cdb6c96f501ba05a229dce7018f9a964bc7171d9
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as information about Android 10 and the Nokia 9 PureView. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger link farm, suggesting a phishing or scam campaign. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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.com/pify?keyword=android+10+nokia+9+pureview
    • http://files.ildiamon.com/uploads/1/3/0/7/130775666/samubesarusuxugoxu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/fidalinegubomekatow.pdf
    • https://cdn.shopify.com/s/files/1/0438/8120/1819/files/bhaskara_satellite_information_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/2002/files/66293156074.pdf
    • https://cdn.shopify.com/s/files/1/0430/7461/7511/files/83258246577.pdf
    • https://cdn.shopify.com/s/files/1/0454/0334/0968/files/field_report_on_yamuna_biodiversity_park.pdf
    • https://cdn.shopify.com/s/files/1/0437/8581/4177/files/76731579190.pdf
    • https://cdn.shopify.com/s/files/1/0438/2287/4781/files/69760807479.pdf
    • https://cdn.shopify.com/s/files/1/0435/7623/0047/files/font_gabriola_bold_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/6903/1078/files/lewofunetiwaketoxod.pdf
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/compound_adjectives_list_examples.pdf
    • https://cdn.shopify.com/s/files/1/0441/3430/1848/files/97559015192.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_off00006ecd.bin
625692c9078c137629efb0037ef7147b1f1fb0f9571b602ae6f93159e8bc0154		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECD 5300 bytes
font_01_sfnt_off000080f3.bin
3f0cee2bb67d05f3495bc585652d9684cca3d3e433b429c583913c2c414ae5f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80F3 10480 bytes
font_02_sfnt_off0000a50a.bin
bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA50A 16312 bytes

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