Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6f4dbcfbda507ba…

MALICIOUS

PDF

38.4 KB Created: 2020-09-02 09:44:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55cbd80b060042894fef5fcd26846178 SHA-1: 6a31766e211ee7d615d8be90d0955eb710ce5b16 SHA-256: d6f4dbcfbda507ba847394cc362bd712aef48163230380a8c173cd24dc347465
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though corrupted, contains text related to 'fly plane 3d game apk' and the malicious URL, suggesting a lure to download a game. The primary malicious URL is https://ttraff.me/wix?keyword=fly+plane+3d+game++apk, which is likely used to redirect the user to further malicious 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/wix?keyword=fly+plane+3d+game++apk
    • https://static.usrfiles.com/ugd/7f46b5_96e94bbab52849fb9a8d2680cd8ce20c.pdf
    • https://static.usrfiles.com/ugd/3bcfef_a75f853d6dd3438b8167afdd7e32e106.pdf
    • https://static.usrfiles.com/ugd/ac72e0_e348c6bf2b3943ecbcfcbd28b8d216dd.pdf
    • https://static.usrfiles.com/ugd/3c8574_8619b30c10e14e9ea54267d20c1069b1.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_912d6257333c41e29f4d0577317d636a.pdf
    • https://static.usrfiles.com/ugd/d79848_3246aca6b7b247f5ad79070601794e31.pdf
    • https://static.usrfiles.com/ugd/5e81b9_acc5639ed0464c1bab2dd279b66b17fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_32b491d49e1848e19ad9475d7242f010.pdf
    • https://static.usrfiles.com/ugd/99965f_a937595e7f7a4be096a4f8af0c233aa4.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_off00004565.bin
d8d33b2572060b477bb9074ec0261afb6bdece8578aa4d15e0d9214d99d32881		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4565 4840 bytes
font_01_sfnt_off000055c1.bin
d6114c1ae4563985aafd922f7d8a1f06cbf78ea28e3b40944382d304cac56fb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55C1 13432 bytes
font_02_sfnt_off00007f2a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2A 4324 bytes

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