Malicious PDF — malware analysis report

Static analysis result for SHA-256 482467cc12c138eb…

MALICIOUS

PDF

45.4 KB Created: 2020-09-03 04:33:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 612f9d85f42770408cb25ad1d2641d26 SHA-1: 78b6e309a8b6bf9321552b49860fdf0f037e86d1 SHA-256: 482467cc12c138ebf4e17962ec13e4f03641b8626a374b2420df79017a8dbf17
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'latest 2018 animation movies free' and the malicious URL, suggesting a lure. The file also contains a PDF link farm heuristic, indicating it's part of a larger SEO poisoning effort to distribute malicious content. The primary malicious IOC is the redirector URL.

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.com/wix?keyword=latest+2018+animation+movies+free
    • https://static.usrfiles.com/ugd/a838c0_36025e3f282f44af94dd2826eb8c7932.pdf
    • https://static.usrfiles.com/ugd/80c1db_d8485a202cd945e3944efb31a976eb4f.pdf
    • https://static.usrfiles.com/ugd/0baf77_79a5b1b446b44b01b63289f04822264d.pdf
    • https://static.usrfiles.com/ugd/de9003_94518a2cbe61421a89e1f13d3cac72e9.pdf
    • https://static.usrfiles.com/ugd/5b9a87_e976185f14934707acda63c69ca3dfb1.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15125842299.pdf
    • https://static.usrfiles.com/ugd/957c7b_f0315abdc3d840d8b8399f6911e1540f.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_cc6b6752019541b393e53762f0adfd59.pdf
    • https://static.usrfiles.com/ugd/1813b3_208c7f7c55bd4123a0ad21aafdb4e397.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c0b666fe00649d2ad93306a2b54fbd8.pdf
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/ardhanari_movie_2017.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/99965009165.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_off00006682.bin
5cc687cc6d52cdc13c246b80194bc5c18d9a2dba705bc6ae1b744e93371cc89d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6682 5192 bytes
font_01_sfnt_off0000780c.bin
cd19bb135e5bd685bd171ee024e231aedffd4c6431c3c0c28131208e961ae5a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x780C 10120 bytes
font_02_sfnt_off00009ab4.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB4 4324 bytes

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