Malicious PDF — malware analysis report

Static analysis result for SHA-256 3be868ae9d0209cb…

MALICIOUS

PDF

35.5 KB Created: 2020-09-05 00:41:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f27ab2bcca5cf7a7f8f178aa3ed851c9 SHA-1: efd03a331474a318c22b28c7d9e09f609f02c0fa SHA-256: 3be868ae9d0209cb9d31de76c1dbf88e99990ec06d360610b2929afede8e32b7
130 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to obscure the ultimate destination. One prominent URL, 'https://ttraff.club/wix?keyword=netflix+apk++android+tv', suggests a lure for downloading an Android TV application. The presence of a visual download button further supports the social engineering aspect of this attack. The file is identified as malicious due to its redirection capabilities and link farm structure.

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.club/wix?keyword=netflix+apk++android+tv
    • https://static.usrfiles.com/ugd/9f69bd_59ba0682fdb041bca0b33c08ef43e1b2.pdf
    • https://static.usrfiles.com/ugd/b8c837_052f2125847e49058c83956fdea2c9cd.pdf
    • https://static.usrfiles.com/ugd/96bf9d_aa466ea8194243bea7cafd02fb10b9e9.pdf
    • https://cdn.shopify.com/s/files/1/0430/8942/8637/files/tawuxazut.pdf
    • https://static.usrfiles.com/ugd/4bdc6d_5d6f25507a2a4994a4a8c516e3c830d1.pdf
    • https://static.usrfiles.com/ugd/4cfbbd_143d177112774c5f882d050a448c990d.pdf
    • https://static.usrfiles.com/ugd/0ad6c7_7e2e34efde0b4093bb0efc0e0f44851c.pdf
    • https://static.usrfiles.com/ugd/b8c837_ec8fa0036ef7465ea804f506bcd2eca4.pdf
    • https://static.usrfiles.com/ugd/c7ef1a_6d7041f6cc9c450ea62ea4176f3dca90.pdf
    • https://static.usrfiles.com/ugd/64d889_ae16128e69d5463bab9b62d104332715.pdf
    • https://static.usrfiles.com/ugd/1479de_64d911d4a4aa446a89e21a3be68d34c9.pdf
    • https://static.usrfiles.com/ugd/35f767_acf8077c551d4f708f714ee1fc249860.pdf
    • https://static.usrfiles.com/ugd/60ffa2_07a3f296ce5249c5a01239c110de15f6.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_off00004e38.bin
50e6133aef67df62a3d6a792de9b4307adf02a7aafdc7326e2579ee1c8af3d24
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E38 5016 bytes
font_01_sfnt_off00005f6e.bin
672e9efba24957a2112a1e98dbe1808d2e5e88e0ba1ccd4d244fe67f295e3f10
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6E 10024 bytes