Malicious PDF — malware analysis report

Static analysis result for SHA-256 7999d4c52fbffc48…

MALICIOUS

PDF

57.9 KB Created: 2020-08-29 21:00:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 468ae7c542f5078eb63c3bca931a1ab5 SHA-1: 18830fb1c899387f6745eac1eb4c70be744eec43 SHA-256: 7999d4c52fbffc48cf0ccebc053b21bba1d44aeeb45170c99a720d129c6440f2
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.me/wix?keyword=fichas+para+imprimir+medidas+de+longitud+primaria'. Additionally, another critical heuristic indicates a PDF link farm, with numerous external links, many hosted on 'static.usrfiles.com'. The document body, though heavily obfuscated, contains the malicious URL. The primary attack vector appears to be luring the user to click the malicious link.

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/wix?keyword=fichas+para+imprimir+medidas+de+longitud+primaria
    • https://static.usrfiles.com/ugd/b8c837_c52825cdeb7a4195b3b19cbfbc2a66c6.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd7226e5cab04f9282ebfb61cebba8a7.pdf
    • https://static.usrfiles.com/ugd/b8c837_75560a67bc894a448044a18ddd58077f.pdf
    • https://static.usrfiles.com/ugd/b8c837_80af681399124cbe9b894ce3f21d82c8.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a0d3bf25dd049388d06aee2dfef8673.pdf
    • https://static.usrfiles.com/ugd/b8c837_edfd736b7b72421ea60e97ff0a21e8e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_1124598a48d94bf580c3318371b091c7.pdf
    • https://static.usrfiles.com/ugd/b8c837_7b45f645a8f446e1a05ee991c4a83db5.pdf
    • https://static.usrfiles.com/ugd/b8c837_d3e468f27454497a9e4fd1777e1e35e2.pdf
    • https://static.usrfiles.com/ugd/0a052f_0991887cbee84f9ba9a17f0e617ffa03.pdf
    • https://static.usrfiles.com/ugd/63d3ad_8a5494aab0044f4e93801e6a0c1f0051.pdf
    • https://cdn.shopify.com/s/files/1/0438/3745/6534/files/divorce_in_islam_in_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0457/6336/2980/files/education_logo_templates.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15501301831.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008c02.bin
78718a5d492c361eb5b76c442ebf5ed596c95b5a34f4c93440ebe7d0c3858fd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C02 5444 bytes
font_01_sfnt_off00009e5a.bin
60c19b631693ac3edf31dbd37e88553abb3ce10495e7a4990483a706d6faa63d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E5A 11340 bytes
font_02_sfnt_off0000c306.bin
25b4721464b7316f01e21ed2c3faf4040515a2c9bdaa67695c41ecc6d6989cce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC306 16124 bytes

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