Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2ddb82acb2497b4…

MALICIOUS

PDF

39.0 KB Created: 2020-09-09 01:04:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ae45b45827e78f3b48805f0cec13b06 SHA-1: f8c2dfb5cd39241473bd11bf5e84a955ebe3a602 SHA-256: c2ddb82acb2497b4cd74af6f14f408688e04b87468f5d685f5cffeb43f87979e
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many of which point to a redirector service. The primary malicious link, 'https://ttraff.me/wix?keyword=alberta+map+template', is designed to lure users to potentially harmful content. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a link-farming or redirection-based attack. No scripts were extracted, but the heuristic firings strongly indicate a malicious redirection attempt.

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.me/wix?keyword=alberta+map+template
    • https://static.usrfiles.com/ugd/b8c837_2f68eb444f0f46489efea14ce3ee0019.pdf
    • https://static.usrfiles.com/ugd/b8c837_67eb5d5703fc4132aa067bcf59a9372d.pdf
    • https://static.usrfiles.com/ugd/a2e20a_bb010083c38f4d099e4c5a26790db621.pdf
    • https://static.usrfiles.com/ugd/599026_c4618186f98c4f189b4c2c08da6654b6.pdf
    • https://cdn.shopify.com/s/files/1/0428/5353/1807/files/50871674364.pdf
    • https://cdn.shopify.com/s/files/1/0432/0365/7887/files/in_cold_blood_themes.pdf
    • https://cdn.shopify.com/s/files/1/0437/7814/6462/files/atlantic_rim_2013_sub_indo.pdf
    • https://static.usrfiles.com/ugd/b8c837_d5334062b76041b4906fa610bd60d58a.pdf
    • https://static.usrfiles.com/ugd/b52961_69f916c4ae114b528b0a002970c8fad4.pdf
    • https://static.usrfiles.com/ugd/111c46_71c78e4de8bb47478d1671706012d97d.pdf
    • https://static.usrfiles.com/ugd/c3548c_f52576bd05c24a4d80ee07bbc764a5da.pdf
    • https://static.usrfiles.com/ugd/de9003_b4acc97f58d04787899e873dae7dbe23.pdf
    • https://static.usrfiles.com/ugd/1715bf_4f943bbc111d4311b91dc4ff2ff61510.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_off00005b40.bin
4708559f31b781a04434384724b1c5d62372d1d4e61c0ea439c592cc70c8b0fb
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B40 4916 bytes
font_01_sfnt_off00006bdc.bin
fdfb32e39c5ef415b3b16cc86544b3d0c4e5f1d43aeeeb8d0a3432ac4c56dadc
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDC 10492 bytes