Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7a22591c8c041fe…

MALICIOUS

PDF

55.1 KB Created: 2020-08-26 15:28:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bf4b6806ccf0444de2bde8d325d8d15 SHA-1: 165e54315ea164e6f5207a4100fe17d7b9d2aaf9 SHA-256: b7a22591c8c041fe9d8ce805f43fb4ed82f1d081baecdab3969ed23be29b4da9
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=data+governance+framework+ppt'. This URL is embedded within the document's content, which also includes text related to 'data governance framework ppt', suggesting a lure. The file also exhibits a PDF link farm heuristic, indicating it contains numerous external links, with the primary one leading to a Shopify domain. 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=data+governance+framework+ppt
    • http://files.lakesregionhypnosis.com/uploads/1/3/1/4/131453267/93afe5604c.pdf
    • http://files.rarebreednationllc.org/uploads/1/3/0/7/130740504/3bc46ae.pdf
    • http://files.lakesregionhypnosis.com/uploads/1/3/1/4/131453267/93afe5604c.p
    • https://cdn.shopify.com/s/files/1/0438/5164/5093/files/kutolezafekilunogipuza.pdf
    • https://cdn.shopify.com/s/files/1/0437/7663/9134/files/christmas_movies_guide_2018_uk.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/gatuparajovabiko.pdf
    • https://cdn.shopify.com/s/files/1/0437/7218/2685/files/49420166447.pdf
    • https://cdn.shopify.com/s/files/1/0437/5812/5213/files/apk_ipa_spider_man_ps4.pdf
    • https://cdn.shopify.com/s/files/1/0430/8588/9689/files/tumulog.pdf
    • https://cdn.shopify.com/s/files/1/0435/3395/9327/files/survey_of_clustering_algorithms.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_off000098ec.bin
db3ad22dc53020b258fc03697b0b846fb262a39389e9a3ca15bb4a10b8ba7946		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98EC 5340 bytes
font_01_sfnt_off0000ab22.bin
5ad3e2a49968c74418b33bf5281a8833437ed6d0e27f56373bc3d1f9701ade0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB22 10736 bytes

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