Malicious PDF — malware analysis report

Static analysis result for SHA-256 d70fe4ef6d606ba8…

MALICIOUS

PDF

34.0 KB Created: 2020-08-28 15:15:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c2498c179028e75b6dbfa614620a849 SHA-1: 2311c4088fa22c60ba05eae51b5bef31a2b95d53 SHA-256: d70fe4ef6d606ba80531c4d3c7b03528dc33e9a001645a5c5b117a02915012b7
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files. The primary malicious URL is https://ttraff.cc/pify?keyword=pirates+of+the+caribbean+theme+music+mp3+ringtone+free+download, which likely serves as a gateway to further malicious content. 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/pify?keyword=pirates+of+the+caribbean+theme+music+mp3+ringtone+free+download
    • http://taxode.chicagoblazerugby.com/uploads/1/3/1/3/131384281/137b1ccd1d38812.pdf
    • http://rogudidun.vibrationalinstitute.com/uploads/1/3/1/4/131454950/4218353.pdf
    • http://zuwodusuk.luzthecakelady.com/uploads/1/3/2/7/132710797/siraloxen.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/trends_in_higher_education.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tefukina.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/basugogigarerebid.pdf
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/85249765589.pdf
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/carga_electrica_unam.pdf
    • https://cdn.shopify.com/s/files/1/0434/8326/7236/files/53940649286.pdf
    • https://cdn.shopify.com/s/files/1/0430/6341/0839/files/winoridufozimaz.pdf
    • https://cdn.shopify.com/s/files/1/0440/4409/1557/files/nufezajubivenowizatelotif.pdf
    • https://cdn.shopify.com/s/files/1/0433/1778/8830/files/pabiwefuvuredod.pdf
    • https://cdn.shopify.com/s/files/1/0431/5581/6599/files/selekagowepotegibusa.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_off00004557.bin
954deb90fafb25cf1725b6942a267e53e3435088e6047cf7b7f5826efa54449f
pdf-font-stream PDF embedded font (sfnt) at offset 0x4557 5968 bytes
font_01_sfnt_off0000597f.bin
10e01f29ded96bdf6a8cba95f4cf9b17220b3719c92f71baf10e612cfa66c742
pdf-font-stream PDF embedded font (sfnt) at offset 0x597F 9708 bytes