Malicious PDF — malware analysis report

Static analysis result for SHA-256 d72c52f19a3d7f01…

MALICIOUS

PDF

39.0 KB Created: 2020-09-10 07:16:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51444ce785c15c1f3668d297103d7cfd SHA-1: a7da8a6fe03139043883e76236299b2eed0701d2 SHA-256: d72c52f19a3d7f019ca4e2bc0db21d98475d1ba965d9aff6c0a383358536401d
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing indicating it's a link farm. One of the primary links, 'https://ttraff.me/pify?keyword=arqiva+group+parent+limited+annual+report', is flagged as malicious. The document body, though heavily obfuscated, contains this URL and appears to be a lure related to an 'annual report'. The presence of numerous Shopify links suggests an attempt to disguise the malicious redirector among seemingly benign content.

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.me/pify?keyword=arqiva+group+parent+limited+annual+report
    • https://cdn.shopify.com/s/files/1/0428/9724/4316/files/xuburosuxo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/5217636372.pdf
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/cease_and_desist_letter_template_slander_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/78351267423.pdf
    • https://cdn.shopify.com/s/files/1/0432/7804/1244/files/delafedagidisis.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4330/files/catoctin_mountain_park_map.pdf
    • https://cdn.shopify.com/s/files/1/0467/9696/3989/files/speech_about_teachers_day_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0436/5392/2969/files/vufugexosuvubajibos.pdf
    • https://cdn.shopify.com/s/files/1/0463/6092/0219/files/emotional_love_scenes_in_tamil_movies.pdf
    • https://static.usrfiles.com/ugd/ae15ca_0a8d3964c7824d899f6f1173caf8ec89.pdf
    • https://static.usrfiles.com/ugd/b0c717_8759b0fc29e749519e63d3a85a8403b8.pdf
    • https://static.usrfiles.com/ugd/b8c837_3a13a7ec1bf847f49659d8af8eaf81ee.pdf
    • https://static.usrfiles.com/ugd/76de1a_5bb02c2de2404396a4bc363b80744c03.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_off00004ee8.bin
8714e4c141fd5c69b35bb0eff142283cbe97d79c3788ab5b9eb04589a4c82e62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE8 5276 bytes
font_01_sfnt_off000060c6.bin
860a54dc04c56815b8a7f6e966a4df3cadbfc9f78a7c4cf34c729368631e02a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60C6 14772 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.