Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5618a41ce472854…

MALICIOUS

PDF

48.9 KB Created: 2020-09-03 04:18:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66bf03af2b24446d92d07e122233c750 SHA-1: fadab05e5b27597275e8da13fb82a19f408911f0 SHA-256: e5618a41ce472854e108388626e85edbfc8e7949db7190b384f2eb98ceeef0ce
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. The primary redirector URL is https://ttraff.cc/wix?keyword=hidden+animals+in+face+pictures+with+answers, which is flagged as malicious. The document body itself is heavily obfuscated and appears to be junk data, but the presence of the malicious redirector and the link farm heuristic strongly suggest a malicious intent, likely for phishing or malware distribution.

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=hidden+animals+in+face+pictures+with+answers
    • https://cdn.shopify.com/s/files/1/0448/0699/6134/files/40806927995.pdf
    • https://cdn.shopify.com/s/files/1/0429/7274/1791/files/42871520275.pdf
    • https://cdn.shopify.com/s/files/1/0461/5520/2723/files/free_html_templates_for_email_newsletter.pdf
    • https://static.usrfiles.com/ugd/24853a_3399914d66be46068957396f55da7324.pdf
    • https://static.usrfiles.com/ugd/b8c837_f0364a0c79614c7c8e994394df21ac15.pdf
    • https://static.usrfiles.com/ugd/880a7e_7235708fe46e4ff0aecaf500e1b5f684.pdf
    • https://static.usrfiles.com/ugd/b8c837_8b05a0a6ff51488e9516e0d1cbbee83e.pdf
    • https://static.usrfiles.com/ugd/b8c837_2f3a53aed817421298ef206ac3598351.pdf
    • https://static.usrfiles.com/ugd/3be3a7_b03c62f1e6b346a3b11e220b313aebe7.pdf
    • https://static.usrfiles.com/ugd/36f25b_72719a158fc947b4b97069e80c759eaf.pdf
    • https://static.usrfiles.com/ugd/c1108c_5913b379fdf5465794164e69c7d93a9c.pdf
    • https://static.usrfiles.com/ugd/c068f8_580fcf03c760457aa17ba53c430e0b28.pdf
    • https://static.usrfiles.com/ugd/22739b_043c8ef7e23a4f4fbff7b36fb792f6d0.pdf
    • https://cdn.shopify.com/s/files/1/0438/4591/0678/files/daguv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9029/7507/files/97254897342.pdf
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/ipod_nano_6th_generation_games_free.pdf
    • https://cdn.shopify.com/s/files/1/0463/0822/9280/files/create_checklist_template_servicenow.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_off000064cd.bin
0692372c9a5510728d615d7da33f010300aa1364343abb8927bc5b7c6bf3dc70
pdf-font-stream PDF embedded font (sfnt) at offset 0x64CD 5448 bytes
font_01_sfnt_off0000773e.bin
1d7a23c3783a652988280d00af81b58f571cce5a4bc4a284ce01cdc3519bf05e
pdf-font-stream PDF embedded font (sfnt) at offset 0x773E 9844 bytes
font_02_sfnt_off000098cc.bin
d7e25d43ae52bdc576af15e216689ea55d59155722ddbd641bab6720b2c8289f
pdf-font-stream PDF embedded font (sfnt) at offset 0x98CC 18464 bytes