Malicious PDF — malware analysis report

Static analysis result for SHA-256 f39cab68d3c653fc…

MALICIOUS

PDF

48.5 KB Created: 2020-09-01 04:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c05ee7c3abc85f84378f6fc14314b9a SHA-1: e1ac86482d211abd1464b5d4681745133d988157 SHA-256: f39cab68d3c653fc32fea77ec19c86f531f13cb3f26fb58ae57b60ac6f22e721
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and text related to 'Akshardham gandhinagar information in gujarati language', suggesting a lure. The presence of a link farm heuristic further indicates malicious intent to drive traffic to external sites.

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=akshardham+gandhinagar+information+in+gujarati+language
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/55503255007.pdf
    • https://cdn.shopify.com/s/files/1/0464/7888/5032/files/mexonusixa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/99341171457.pdf
    • https://cdn.shopify.com/s/files/1/0463/1517/6096/files/payment_slip_format_images.pdf
    • https://cdn.shopify.com/s/files/1/0463/7792/6811/files/poniwu.pdf
    • https://static.usrfiles.com/ugd/f1780b_dd6733742088446b8491dc94c7d707bd.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30106301206.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/rodumitavokidevadudimatap.pdf
    • https://cdn.shopify.com/s/files/1/0433/5396/4712/files/digestion_de_proteinas_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bapumonotirugapagemuzigin.pdf
    • https://cdn.shopify.com/s/files/1/0448/0565/2637/files/afcat_syllabus_2019.pdf
    • https://cdn.shopify.com/s/files/1/0461/6752/3491/files/dovozijaduwejimipipo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6986/6141/files/55934157458.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/pakinutevomitupibufaxod.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_off00007fb4.bin
2c88eaa1866d12e80f33077c191f572dff9d146d757bcd1e6edf4d75b9e385bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB4 5448 bytes
font_01_sfnt_off00009216.bin
2d5b31478c4230b3519a7a5492703f5f160571f2ca3080cb173297aa45c5a75f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9216 10084 bytes

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