Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ab04ea4a168758a…

MALICIOUS

PDF

51.2 KB Created: 2020-08-30 11:25:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68996181dd13aee262976f109a113f35 SHA-1: 5cc407eb4e0cf7a7a5ff22b2c38c704877e9ae6d SHA-256: 4ab04ea4a168758a919f36b96f5a796572ae6cd9f2de748938a289013a3adb1d
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.club/wix?keyword=no+fallout+4+ini', is flagged as a malicious redirector. The presence of a link farm and a malicious redirector strongly suggests an attempt to lure users to malicious sites, likely for phishing or to download further malware. The document body is heavily obfuscated and contains the malicious URL, reinforcing this assessment.

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=no+fallout+4+ini
    • https://static.usrfiles.com/ugd/e42ee3_9e20a4bc3eca490b84618e41e34add69.pdf
    • https://static.usrfiles.com/ugd/6290de_c4ce7b085448482c975f929168bbee9d.pdf
    • https://static.usrfiles.com/ugd/dba42a_cfd10dacf2bf41089fa8bfff996014df.pdf
    • https://static.usrfiles.com/ugd/837d34_a6736920ad854a5db10f96e44bcf3932.pdf
    • https://static.usrfiles.com/ugd/0d2908_e744387ec6eb4e92a9c321d263f63806.pdf
    • https://cdn.shopify.com/s/files/1/0434/2883/9586/files/juweliminuxodinelujipixig.pdf
    • https://cdn.shopify.com/s/files/1/0439/3736/6174/files/30563421661.pdf
    • https://cdn.shopify.com/s/files/1/0431/0594/3701/files/korg_pa_manager_v3_full_crack.pdf
    • https://cdn.shopify.com/s/files/1/0437/8555/2030/files/arundhati_songs_naasongs._com.pdf
    • https://static.usrfiles.com/ugd/63d3ad_9e9f53eefeef4e3d9ce33682ced74d0c.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_5eb4595ce9114f79ba57cb949f16281d.pdf
    • https://static.usrfiles.com/ugd/516793_4c60fa2bcfe74605999f88eaad1bed6d.pdf
    • https://static.usrfiles.com/ugd/696b8a_1c6b49e501f64f73a2e35cda3b751f2d.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_off00008311.bin
d823cc5a7167105eaf29a1d02276b502a11d0660601bebf7434acb382b0a06b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8311 4544 bytes
font_01_sfnt_off000092a0.bin
30c7fbdb062a56574c09e7159a9bb53f6aef430728f7061b5a662d8ba42ec88c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92A0 14816 bytes

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