Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2a314de092c94cf…

MALICIOUS

PDF

46.7 KB Created: 2020-08-15 02:27:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77589ce9f75f479253106e874d9cb834 SHA-1: 028a8b1e9ba0b57e1dc2ea89f31190d3029d6ba9 SHA-256: b2a314de092c94cfd0112e7759eb47c184f1747697dcc6ac7286a9e22e484276
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'latest bollywood movies' and embeds numerous links, including one pointing to a known malicious redirector at 'ttraff.cc'. This suggests a phishing or spam campaign aiming to drive traffic to malicious sites. The file also contains a large number of external PDF links, many hosted on Shopify, which is characteristic of SEO-based link farms used to manipulate search rankings or distribute malicious 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.cc/pify?keyword=latest+bollywood+movies++sites+free
    • http://files.briannasmithonline.com/uploads/1/3/2/6/132695428/xemofivikisizaki.pdf
    • https://cdn.shopify.com/s/files/1/0435/6158/2755/files/26038403535.pdf
    • https://cdn.shopify.com/s/files/1/0436/1610/8707/files/big_note_piano.pdf
    • https://cdn.shopify.com/s/files/1/0440/6778/2821/files/adrenaline_and_noradrenaline.pdf
    • https://cdn.shopify.com/s/files/1/0436/9167/1705/files/terat.pdf
    • https://cdn.shopify.com/s/files/1/0435/3910/3912/files/lafemekiganipinumites.pdf
    • https://cdn.shopify.com/s/files/1/0434/6845/6086/files/pojavutunikowoxa.pdf
    • https://cdn.shopify.com/s/files/1/0432/9229/5333/files/caries_dental_articulos.pdf
    • https://cdn.shopify.com/s/files/1/0438/3296/7318/files/nolumopoxed.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/16314731060.pdf
    • https://cdn.shopify.com/s/files/1/0437/4944/1688/files/building_information_modeling_revit.pdf
    • https://cdn.shopify.com/s/files/1/0440/6119/6440/files/17875578352.pdf
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/ccpa_information_security_requirements.pdf
    • https://cdn.shopify.com/s/files/1/0439/9369/4366/files/adiponectina_funciones.pdf
    • https://cdn.shopify.com/s/files/1/0434/7808/9878/files/aafco_2020_official_publication.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_off00006f93.bin
2f6f17cfa42e4c54e0304f28ff17f32ed6bb4bfdf7de3991745b273abfa8ae0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F93 5388 bytes
font_01_sfnt_off000081e6.bin
d48e024587e83cb0bdf315f218c4600121c3578e0e25ca664e65a3bc278a32cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81E6 14080 bytes

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