Malicious PDF — malware analysis report

Static analysis result for SHA-256 205a15061381050d…

MALICIOUS

PDF

68.6 KB Created: 2020-08-30 09:52:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fcddd3e0da48ad07fe7f2a9d48c1f97 SHA-1: 149e4fda903dcac611f69083d2ec5f91d2551d3f SHA-256: 205a15061381050d85fc42818d856747e5505d32fcedf9d0afd674a8ce91d436
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a known malicious redirector infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains references to 'Panasonic tz100 reviews' and 'wkhtmltopdf', suggesting a lure to disguise the malicious intent. The presence of a PDF link farm heuristic further indicates an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes.

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.ru/wix?keyword=panasonic+tz100+reviews
    • https://static.usrfiles.com/ugd/e02969_6e2b2ca6c8de4216a6fe515ee3e25ed5.pdf
    • https://static.usrfiles.com/ugd/cafc24_a80737b997ec47b8b6434e4073cd3f8e.pdf
    • https://static.usrfiles.com/ugd/b8c837_0b631993c6244b6d967a658805543a77.pdf
    • https://static.usrfiles.com/ugd/b8c837_abfe37e54dff42e3aee07f00ad91b977.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c0b1f739eb242aa9231e83263d6eb70.pdf
    • https://static.usrfiles.com/ugd/b910ae_acc0fa6fdbd64919be2f5071fb0366e0.pdf
    • https://cdn.shopify.com/s/files/1/0430/9457/3205/files/sample_examination_iv_ap_calculus.pdf
    • https://cdn.shopify.com/s/files/1/0428/6437/8022/files/galuz.pdf
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/morphing_mod_1._8._9.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/ccna_200_105_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4474/1024/files/dujuwakam.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_off0000cf2e.bin
9133619e05813de4ecd9ce584abecb7ec78db67d76c3f759c0e57fd9ae61f6f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF2E 5156 bytes
font_01_sfnt_off0000e0e3.bin
01a09c8fe6737cedccf61229e3f3e82b7e49ae59b5a3a456380a04beadf82ff5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E3 11352 bytes

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