Malicious PDF — malware analysis report

Static analysis result for SHA-256 03ade1ca52859ff1…

MALICIOUS

PDF

38.3 KB Created: 2020-08-29 21:20:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89939d4a217b1e73daed5664272240c9 SHA-1: d01aad5421b46d7df551beb0d6b12d5c96d45c68 SHA-256: 03ade1ca52859ff166cec6b68522ffdfe0b5dce02cb48338d858c4e8b868d8ba
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded URLs, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text referencing a product and the malicious URL, suggesting a phishing or scam attempt. The presence of numerous external PDF links also indicates a link farm, likely for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=black+series+darth+vader+lightsaber
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_4f0279d878754f349b37f2087bf532c6.pdf
    • https://static.usrfiles.com/ugd/b8c837_7d64aeb2fd244f58acb219daefbb57bf.pdf
    • https://static.usrfiles.com/ugd/2813e2_82257e7d679746bd8eedb0766024a5a0.pdf
    • https://static.usrfiles.com/ugd/b8c837_31f2c65a564e47d49517cc3942498ce8.pdf
    • https://static.usrfiles.com/ugd/b8c837_3192a14a0fbe4f5593de9274581fa9d7.pdf
    • https://cdn.shopify.com/s/files/1/0430/0079/1191/files/rolepofumojizitofoxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/81907282418.pdf
    • https://static.usrfiles.com/ugd/b8c837_c2bea7a2424b4e5a95fd7814cc3b2ccd.pdf
    • https://static.usrfiles.com/ugd/b8c837_323fc7260c8e4fbf8ba06a48e7f2aac7.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056a1.bin
e5d605da7cb0368603328ec64de4dec1c1bf7e32c0d7bdf951bd1c9ba306dc75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56A1 5512 bytes
font_01_sfnt_off00006953.bin
bfe3fc73a9534a43286887c7b9b1e89cb97ba51d6c94d90219f6524b25f2810c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6953 10316 bytes

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