Malicious PDF — malware analysis report

Static analysis result for SHA-256 c147d47d6096028e…

MALICIOUS

PDF

35.6 KB Created: 2020-08-30 15:16:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 001403376522d7ad0e5da438fcb9396f SHA-1: 725121b33947b88396e92fe0f6c09e46e71bd549 SHA-256: c147d47d6096028e647af5ac04eedb7c63db0b4e7c7b7c32d8dcbaa0494ce8e0
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading a manual. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/wix?keyword=highway+capacity+manual+6th+edition+download
    • https://static.usrfiles.com/ugd/1cfe37_931b12204313496fac869a89bba10bfd.pdf
    • https://static.usrfiles.com/ugd/b8c837_26cbeba4ddf04da9969db20fa7e30476.pdf
    • https://static.usrfiles.com/ugd/ea78e0_f10a34b3bc614401b5fb30931f35f67b.pdf
    • https://static.usrfiles.com/ugd/b6bf5b_ef4154a797aa4a92b5a71af77d858d97.pdf
    • https://static.usrfiles.com/ugd/b8c837_b598d61539d341b69596c25235f27f7c.pdf
    • https://static.usrfiles.com/ugd/b8c837_890edbcfbb974a88b5e690fcd385f8fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_426e891f1dd64b5bae7b05d0f50b8888.pdf
    • https://static.usrfiles.com/ugd/b8c837_cc7a68105eab4662814b48350b85eaa7.pdf
    • https://static.usrfiles.com/ugd/49be48_8a77ee9a37384c6d9bbf33e4d12d66bc.pdf
    • https://cdn.shopify.com/s/files/1/0437/7211/7141/files/nitomakoxafebidakomo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5392/4004/files/bahut_aayi_gayi_yaadein_video_song.pdf
    • https://static.usrfiles.com/ugd/b8c837_93df851ba33a428ba21dde46959a3e73.pdf
    • https://static.usrfiles.com/ugd/271e65_c4ccaf2b5950499aa177be540c92bbac.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b99.bin
c92a99be79f76d75441f5b41f878b2d428e2ae27975568e8ae6c7d2b77b3e8f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B99 5520 bytes
font_01_sfnt_off00005e53.bin
3d1ec7c58980e4b33f76506bc8b6e5e8f2827c8d815f32e93361618a6b750073		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E53 10332 bytes

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