Malicious PDF — malware analysis report

Static analysis result for SHA-256 48fcf356ff7e2ed5…

MALICIOUS

PDF

33.3 KB Created: 2020-09-02 01:47:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47fcf3615dac1a8d57ba3796704bb84d SHA-1: c085a32f8b73fd9346fd4963660adac5a12a35fc SHA-256: 48fcf356ff7e2ed5115355644731faee30c36aa15885b50652bf68d59e657b73
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to create link farms for SEO manipulation or to hide malicious redirects. One of the embedded URLs, 'https://ttraff.cc/wix?keyword=vector+arabic+logo', is flagged as a malicious redirector. The document body contains garbled text and a reference to 'vector arabic logo', suggesting a lure to entice users to click the links. 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/wix?keyword=vector+arabic+logo
    • https://static.usrfiles.com/ugd/b8c837_729d092be7254e4cacead38842b70740.pdf
    • https://static.usrfiles.com/ugd/880a7e_3bf2883668c74d288a34ac8d349b4478.pdf
    • https://static.usrfiles.com/ugd/136d07_6ad928f0f5bf4dc0b47860febd381117.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_b3740b5a51744fdab55d9565d3574e55.pdf
    • https://static.usrfiles.com/ugd/5be868_112f3ec89f73461884218b68532f80dd.pdf
    • https://static.usrfiles.com/ugd/b7ab08_2981cd799efa40d2b763cfcfda92b658.pdf
    • https://static.usrfiles.com/ugd/4117a9_3618725a08244bc29db89eef56d9235a.pdf
    • https://cdn.shopify.com/s/files/1/0433/7706/6145/files/6202233464.pdf
    • https://cdn.shopify.com/s/files/1/0432/0319/9136/files/30967489802.pdf
    • https://cdn.shopify.com/s/files/1/0430/2022/2627/files/90948558901.pdf
    • https://cdn.shopify.com/s/files/1/0434/7474/7556/files/microsoft_excel_advanced_formulas.pdf
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/ganapati_atharvashirsha_lyrics_in_english.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_off0000480c.bin
a4a28a53d2ca110ed3c8d6fd1d89b90b025c5c159205f807b5e09402db6bd5ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x480C 4896 bytes
font_01_sfnt_off000058c6.bin
0113d49b5bab3109c7ff6629d16c6ea3b4f887b89722557fb1882cc2e172ea45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58C6 9396 bytes

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