Malicious PDF — malware analysis report

Static analysis result for SHA-256 088e90aa03668e88…

MALICIOUS

PDF

35.5 KB Created: 2020-08-30 10:40:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e2514dae111a619895bdc6e976680ae SHA-1: e2a2126d95b969d112cd8c4e769a3cf303bd8e18 SHA-256: 088e90aa03668e88b6fa6435cef9cc77803e1f01d85b4a2f36263aced532c0f9
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, likely intended to trick the user into downloading malware or visiting a phishing site. The document body contains obfuscated text and the URL 'https://ttraff.cc/wix?keyword=slime+laboratory+2+unblocked', which is flagged as a malicious redirector. The presence of numerous other PDF links suggests a link farm or SEO poisoning attempt to drive traffic to 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.cc/wix?keyword=slime+laboratory+2+unblocked
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/cf14a4_c8c91b8cb867400abec64fed0e276db8.pdf
    • https://static.usrfiles.com/ugd/a1fb72_d9a2a15580cf4e6fad3c03110023e91e.pdf
    • https://static.usrfiles.com/ugd/451461_ee3afa06af4e4e199aa1f60c86a76785.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f71213dd8944adb9cdad530c0f05a65.pdf
    • https://static.usrfiles.com/ugd/b8c837_c6c540fb377f418ca626bf783993789f.pdf
    • https://cdn.shopify.com/s/files/1/0433/0101/1614/files/bidetenegaxexu.pdf
    • https://cdn.shopify.com/s/files/1/0441/4147/8040/files/16334092498.pdf
    • https://cdn.shopify.com/s/files/1/0430/9083/7655/files/it27s_a_guy_thing_david_deida_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/1674/1286/files/ruripajifupaneguselef.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/xuduragagurazolokunoso.pdf
    • https://static.usrfiles.com/ugd/f7fbc8_98f8779f687b4b93b92d6c5ef52447c1.pdf
    • https://static.usrfiles.com/ugd/b8c837_c29f34ad1baf43089dc2424c76dd7eb8.pdf
    • https://static.usrfiles.com/ugd/f523c3_0ae6c4d4b20b485fad398f55e1bed2ab.pdf
    • https://static.usrfiles.com/ugd/9c0842_d85c53a47fd8431188a689e00ccba599.pdf
    • https://static.usrfiles.com/ugd/b8c837_053c0258328d466fb7a69ceb52b4bdd0.pdf
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/juxanod.pdf
    • https://cdn.shopify.com/s/files/1/0428/5136/9127/files/38844413758.pdf
    • https://cdn.shopify.com/s/files/1/0433/5999/4014/files/pdf_of_chapter_haloalkanes_and_haloarenes.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_off00004e48.bin
dc970053ca64df70e725abab71080572d3f4d9e6924cf272d644047addc8353b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E48 5448 bytes
font_01_sfnt_off000060bc.bin
fe16c8d123e101f418b2cca36b54c847f54849f12cbf8ca7c1d6b44de40c1fcc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60BC 9668 bytes

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