Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fda3c681421669c…

MALICIOUS

PDF

45.7 KB Created: 2020-08-29 12:21:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47fc0b8a5f9530e66d2164be1f12646a SHA-1: 61f80e6e13ce38a34ea3eb904df201cd41044d44 SHA-256: 1fda3c681421669cf97ae971e2b84d65e62b9298e11ae8a0cfbbcf5a4fc4d0a0
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented within the document body, disguised as information about a Ford remote starter. The document also contains a PDF link farm heuristic, indicating a large number of outbound links, many of which point to 'static.usrfiles.com'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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.com/wix?keyword=ford+plug+and+play+remote+starter
    • https://static.usrfiles.com/ugd/b8c837_2feb3207110045b49669b7db72003470.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb29f418574e454f9bb737e69a85a542.pdf
    • https://static.usrfiles.com/ugd/b8c837_ea19dab91f524c33acff764eb68a8f19.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd8ff4ad550544d0aeebc004da01322d.pdf
    • https://static.usrfiles.com/ugd/b8c837_18b4dcb7af6a4cc18f8d0f2ff2453413.pdf
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/zuzidebemojemimar.pdf
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/44262805293.pdf
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/bewibirijovitajali.pdf
    • https://cdn.shopify.com/s/files/1/0437/7165/8389/files/bsa_entrepreneurship_merit_badge_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gowavofopinesifaremoka.pdf
    • https://static.usrfiles.com/ugd/b8c837_8873e0fd010140bca32eb23bcc26145e.pdf
    • https://static.usrfiles.com/ugd/b8c837_c800a2d639294caeb60323729bd83782.pdf
    • https://static.usrfiles.com/ugd/b8c837_3a153cb8652748ed8ac89d37785a2c60.pdf
    • https://cdn.shopify.com/s/files/1/0435/8635/5357/files/kenmore_refrigerator_model_253.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/7283431598.pdf
    • https://cdn.shopify.com/s/files/1/0433/3253/4440/files/nomexajelik.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/rojiporanufap.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/rolewupuwopa.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_off00006b21.bin
f6edefec2bdab6f9690d6ea65ff362a1d315259ec7f6b1259cac838aee817438
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B21 5336 bytes
font_01_sfnt_off00007d44.bin
e49495ad0a1d3b452522b6e0def64497906847537e5aafc63aad27bf0fb47849
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D44 14028 bytes