Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1913b8b445ba659…

MALICIOUS

PDF

66.1 KB Created: 2020-09-07 14:18:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78d29a04d1ece17ba061431070fa3335 SHA-1: 464116356ca50924f5235f2d601f19a256e19edb SHA-256: a1913b8b445ba65902120bede97562b498be122a47cd1c1735f18156e833c162
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Album songs free tamiltunes' and the malicious URL, suggesting a lure for users to download content. The primary malicious URL identified is https://ttraff.club/wix?keyword=album+songs+free++tamiltunes, which is flagged as a malicious redirector.

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.club/wix?keyword=album+songs+free++tamiltunes
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/59592768054.pdf
    • https://cdn.shopify.com/s/files/1/0432/0139/6896/files/cv_format_template_for_internship.pdf
    • https://cdn.shopify.com/s/files/1/0440/7069/9160/files/67846406841.pdf
    • https://cdn.shopify.com/s/files/1/0433/9594/0519/files/36827576249.pdf
    • https://cdn.shopify.com/s/files/1/0439/8927/0686/files/jurisdictional_fact_uni_study_guides.pdf
    • https://static.usrfiles.com/ugd/2b25b5_e52fcf078b8442baa0ec9778ac0fada6.pdf
    • https://static.usrfiles.com/ugd/3254bf_45cb9ea07cd5422aa8015abc5025cad8.pdf
    • https://static.usrfiles.com/ugd/b8c837_d422ec1068354474a274f0a8a3d3554d.pdf
    • https://static.usrfiles.com/ugd/97368a_5243322a92594a29879e355c2d91209b.pdf
    • https://static.usrfiles.com/ugd/b8c837_831ea1ebc0e44584ac9a44771be2d06a.pdf
    • https://static.usrfiles.com/ugd/b8c837_eae511e1d280401e82e865bf8488f0b6.pdf
    • https://static.usrfiles.com/ugd/bc84a3_6a71b335587e4468896a2c7657c69dbd.pdf
    • https://static.usrfiles.com/ugd/041b56_5207a28f07d24cd68d55ff501064269b.pdf
    • https://static.usrfiles.com/ugd/ce77c6_37f760c9488941959d750838ffc0b30c.pdf
    • https://static.usrfiles.com/ugd/b8c837_efab7b681d9a43dfa11e5b6b10af5f43.pdf
    • https://static.usrfiles.com/ugd/b98abb_89e4dc9df136417db63b39baddf1e96b.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_off0000c0ef.bin
3982b2ec8fd6a79eaa7fb6a68c4a9cedbabcedfa061edf828eb3a24e23fde6f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0EF 5216 bytes
font_01_sfnt_off0000d29c.bin
f64b0c33b4fa1723a928272d627b83491af4992ea0f0559c8ee63216d1f2d243		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD29C 12892 bytes

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