Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade323ff089b58f3…

MALICIOUS

PDF

39.6 KB Created: 2020-08-30 18:13:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 858ef948ef77f86508d51561aab0ba48 SHA-1: ed447035b56696b731194417061e60f710848064 SHA-256: ade323ff089b58f36dae7f4914efd88c3be2e0018d48bc65df276884f5f66bf4
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary malicious URL identified is 'https://ttraff.com/wix?keyword=one+piece+capitulo+54', which is flagged as a malicious redirector. The document body itself contains garbled text but also repeats the URL, suggesting it's part of the lure. No scripts were extracted, and the attack relies solely on the malicious links within the PDF.

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=one+piece+capitulo+54
    • https://static.usrfiles.com/ugd/24853a_3592adebd56b47798d42d032f270f653.pdf
    • https://static.usrfiles.com/ugd/b8c837_fe7949643807437c89404e23c6aef9fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_18fb4f5e52114b188df1b35651c42c50.pdf
    • https://static.usrfiles.com/ugd/3aca14_a9bab5bd745b432caddfef2dc80477cc.pdf
    • https://static.usrfiles.com/ugd/b8c837_cc4f162732a5446dbef21a6912c13437.pdf
    • https://static.usrfiles.com/ugd/b8c837_33831c1fddeb48aea40e27317376388d.pdf
    • https://static.usrfiles.com/ugd/4b68be_b868ccd603ee4c4baf08c7cfba794a70.pdf
    • https://static.usrfiles.com/ugd/b8c837_30c2c394a7de43c1b808a586a801eb80.pdf
    • https://static.usrfiles.com/ugd/913720_8173569fe9094e82a3a73b2973f60a67.pdf
    • https://static.usrfiles.com/ugd/de65f7_0776f065b976410986b76cc8177fa71f.pdf
    • https://static.usrfiles.com/ugd/b8c837_65e00add5f7e4f819b732a07367ea238.pdf
    • https://static.usrfiles.com/ugd/b8c837_132628c7ef364e36a9117a681bf6acdf.pdf
    • https://static.usrfiles.com/ugd/83f04e_4670cf69a6524f57a570d2be343f50d2.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf9c468857594894962c9dc63e4cee9e.pdf
    • https://cdn.shopify.com/s/files/1/0433/8909/1998/files/handbook_of_psychological_assessment_5th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/9100/8419/files/linodekit.pdf
    • https://cdn.shopify.com/s/files/1/0438/5731/3957/files/collections_in_java_javatpoint.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047f5.bin
b9ead3b3802badffe1fd729cca9031a0c52fb76ad350d3e3b60773bf55cee02b
pdf-font-stream PDF embedded font (sfnt) at offset 0x47F5 3332 bytes
font_01_sfnt_off000053cf.bin
a3322b62cb604ea4e5a122d230db8390f91bc8b5aedddfa4991916a16bb0c7d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x53CF 4892 bytes
font_02_sfnt_off0000648d.bin
6dd3cedebea4b6ee3554b58649429386093dc00efac489d1a2e9bd87f23f4668
pdf-font-stream PDF embedded font (sfnt) at offset 0x648D 13660 bytes