Malicious PDF — malware analysis report

Static analysis result for SHA-256 980b61345cd5d4e5…

MALICIOUS

PDF

103.4 KB Created: 2020-08-23 00:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f9ca65c37578807fc8e7e3968eb9131 SHA-1: 8ab429de409403e24280f56eb0602bd0c5848d1c SHA-256: 980b61345cd5d4e5635af06b2642b998d50db9f89c6ee0878d5ee9ba10bda45c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify, likely for SEO manipulation to increase visibility. No scripts were extracted from this sample.

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/pify?keyword=information+about+charles+babbage+father+of+computer
    • http://vebal.antoniofamilyfoods.com/uploads/1/3/2/6/132683168/5041537.pdf
    • https://cdn.shopify.com/s/files/1/0437/3892/3169/files/womens_chunky_platform_shoes_uk.pdf
    • https://cdn.shopify.com/s/files/1/0432/9691/5621/files/bukapikixiput.pdf
    • https://cdn.shopify.com/s/files/1/0432/1850/1799/files/ford_five_hundred_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/91786989308.pdf
    • https://cdn.shopify.com/s/files/1/0454/2873/6168/files/23509892321.pdf
    • https://cdn.shopify.com/s/files/1/0433/6962/7799/files/pojuf.pdf
    • https://cdn.shopify.com/s/files/1/0434/4777/9478/files/fexuwufaralebepisazubame.pdf
    • https://cdn.shopify.com/s/files/1/0434/6976/6821/files/article_writing_format_isc_class_11.pdf
    • https://cdn.shopify.com/s/files/1/0431/4854/2109/files/betij.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9512/files/tadorezezaluf.pdf
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/receptores_asociados_a_canales_ionicos.pdf
    • https://cdn.shopify.com/s/files/1/0437/5992/7448/files/iwisoft_free_video_converter_softonic.pdf
    • https://cdn.shopify.com/s/files/1/0431/4837/8280/files/10409966646.pdf
    • https://cdn.shopify.com/s/files/1/0433/0464/8859/files/xivuzupazemo.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_off0001550a.bin
d95848ce2fa75c5a2e644b9adbf021e50afcf65df34da9a48cc496237703fc10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1550A 5504 bytes
font_01_sfnt_off00016792.bin
3bc0f57ff4cedaa632800b087e16b26d957fe2407ec7f682ce9d12feb848d10b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16792 12324 bytes

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