Malicious PDF — malware analysis report

Static analysis result for SHA-256 304d831351f1720c…

MALICIOUS

PDF

83.2 KB Created: 2020-09-01 02:01:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ee68f5dcf17a34633fb74a9095cb22d SHA-1: 65fd9cf349d666a3e0b94d96ff3fa560e149b2aa SHA-256: 304d831351f1720cb47d8cdb8270915d10f63de1edcdcf83e2137eeaabe97194
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/wix?keyword=complete+information+about+fashion+designing`. This URL is presented within the document body, disguised as information about fashion designing, to entice users to click. The PDF also exhibits characteristics of a link farm, with numerous external links, suggesting a broader campaign to drive traffic to potentially malicious sites. 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.cc/wix?keyword=complete+information+about+fashion+designing
    • https://static.usrfiles.com/ugd/fd3290_7fd88bbe213846beb0206ce6c664d9ae.pdf
    • https://static.usrfiles.com/ugd/6290de_34bdb9156e7145b892c9e38b8a7f1956.pdf
    • https://static.usrfiles.com/ugd/3e9e83_fb31b3b93eda4932a15c7542392584c9.pdf
    • https://static.usrfiles.com/ugd/50de67_88b4dc861c784e0e95902ba036d998f4.pdf
    • https://static.usrfiles.com/ugd/a640e9_4981ffb989f847c28f39ad1caa184413.pdf
    • https://cdn.shopify.com/s/files/1/0427/9051/8940/files/94486506377.pdf
    • https://cdn.shopify.com/s/files/1/0429/7729/6543/files/9631940960.pdf
    • https://cdn.shopify.com/s/files/1/0433/8784/6806/files/archeology_essentials_4th_edition.pdf
    • https://static.usrfiles.com/ugd/9c43ec_ead25173b3804d5e8c87c68c76ee0dde.pdf
    • https://static.usrfiles.com/ugd/516574_013f86011ea54c80b74cddd1bee227a4.pdf
    • https://static.usrfiles.com/ugd/7e0eb0_c85a6d589e1c44fdb40bf79424c0556a.pdf
    • https://static.usrfiles.com/ugd/934fc3_d791b00823a84409b5b81ba2977731e3.pdf
    • https://static.usrfiles.com/ugd/b8c837_7366e8f288254cdc89682d91f35a805a.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_off0000fb5d.bin
d22d9d92ee5ec7658ada43a59d3dc55d857a8fd335decc8c72bda0e2d137c4dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB5D 5500 bytes
font_01_sfnt_off00010dda.bin
a453d0deabf1ef5c48c46f584f3c1757007ff0bf8fb31464848f645e47d0c2d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDA 10316 bytes
font_02_sfnt_off00013103.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13103 4324 bytes

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