Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4d4422f774c456d…

MALICIOUS

PDF

58.1 KB Created: 2020-09-08 01:53:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 465a677f6c0ee388e2800b4320b57ab0 SHA-1: 50460c9520bbeb97b61c974c095b77d5430c9c47 SHA-256: e4d4422f774c456da75361821fe521bdc9097221f45eaf7c709dfa05f040157f
128 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains the text 'Advertising campaign plan template' and a URL that appears to be a lure for a malicious redirector. This suggests the document's purpose is to trick the user into visiting a malicious site, likely for further exploitation or credential harvesting.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.link/wix?keyword=advertising+campaign+plan+template
    • https://static.usrfiles.com/ugd/83b1b3_da6c300c16bc4b4b8d76c371ab163eed.pdf
    • https://static.usrfiles.com/ugd/9eb187_c61efa75fd7846cc8e9ea8e9ae6b8c5b.pdf
    • https://static.usrfiles.com/ugd/b8c837_3ce47466429d4bdca5794bf32e4d3d28.pdf
    • https://static.usrfiles.com/ugd/510a18_11b0ca482a0640e3a499a2b1a64370b2.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/viwixefawagaxebikuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/bx8_bus_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/rspec_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0456/9143/7215/files/android_app_secret_key.pdf
    • https://static.usrfiles.com/ugd/4f92c1_eb5e391aedc5498f8629e89219b89fab.pdf
    • https://static.usrfiles.com/ugd/53cfc7_3279dbbb16b640e79fdb3a49da5b48e6.pdf
    • https://cdn.shopify.com/s/files/1/0428/8957/6607/files/adhyarathri_movie_songs_maango.pdf
    • https://cdn.shopify.com/s/files/1/0432/2230/2888/files/jexojiratuse.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_off00008fa0.bin
62388482a58fd352c0c1a60ed65a3e8b2a1906e48ca66482265bc894fe62a5e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FA0 5444 bytes
font_01_sfnt_off0000a214.bin
15a939dce1b015e8dbc909940cf7426c8f041628e580ec9b8b4b785ef419c9b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA214 10232 bytes
font_02_sfnt_off0000c562.bin
bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC562 16312 bytes

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