Malicious PDF — malware analysis report

Static analysis result for SHA-256 bad12b060247fdf2…

MALICIOUS

PDF

39.8 KB Created: 2020-09-13 08:06:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e4bb0958d5d48dbcab7413ffe1f2d80 SHA-1: 4ff6d67fa6e22cf93802ee988dd3d60651414fea SHA-256: bad12b060247fdf2836b23f703e1dd79f8daf41789bff151316f7b592c7c241d
130 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector URL, indicating an attempt to lure the user to a malicious site. The presence of a 'download button' lure further supports this. The document body contains the malicious redirector URL and several other PDF links, likely part of a SEO link farm strategy to increase visibility. The primary malicious URL is https://ttraff.link/wix?keyword=coc+fhx+apk+new+version, which redirects to other content.

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=coc+fhx+apk+new+version
    • https://static.usrfiles.com/ugd/590778_e8125e5e04bd477da078e5ac18ea7ec1.pdf
    • https://static.usrfiles.com/ugd/e1d58f_9c0802066daf4906bed152f551bfe93d.pdf
    • https://static.usrfiles.com/ugd/57c819_229244d07c024cd6ac3ee9759b24d738.pdf
    • https://static.usrfiles.com/ugd/21e6f2_6176f69335124233b99706889cebed5a.pdf
    • https://static.usrfiles.com/ugd/0049ca_ec16cac2a1e04edb913fdf7dbe788999.pdf
    • https://static.usrfiles.com/ugd/197ed4_23cba7bc43294ad3a676e3e930d172a8.pdf
    • https://static.usrfiles.com/ugd/dbbfd0_4cfdd14186c348cdb4f209867c4fa12d.pdf
    • https://static.usrfiles.com/ugd/dba42a_7e4fbd90b85f44c38e49455848410fe9.pdf
    • https://static.usrfiles.com/ugd/96768c_14bc572ee38f4c1da381b53f711484ff.pdf
    • https://static.usrfiles.com/ugd/e73fea_7c3f1a4aaa2348a3bb4d74b7f166d5f1.pdf
    • https://static.usrfiles.com/ugd/03dcd4_4b34ddc239f64f088033ccc54a734d0a.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_off00005e88.bin
5ffd67188bc3fe8c7bb6ebd028fca9e476b914c94fb50d1d2966c87588cd4a22
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E88 5260 bytes
font_01_sfnt_off00007083.bin
596337d67f356f882e26c7e83e0441941f6d4b8078d852be24441386c309bd8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7083 10096 bytes