Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad0e328701e64a35…

MALICIOUS

PDF

34.5 KB Created: 2020-08-30 16:29:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ff1da82744dae77993bc723a7098ea6 SHA-1: 4c8e205c42cb05f8958fc00689edd2f7732de757 SHA-256: ad0e328701e64a3533892b47e50d932a3fea1100264822b96b57aaaab47aa022
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.me', which is used in a lure for a Pokemon game download. The document also contains a large number of embedded links, many pointing to Shopify, which is indicative of a link farm used for SEO poisoning or to host malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.me/wix?keyword=pokemon+heart+gold+rom
    • https://cdn.shopify.com/s/files/1/0436/7758/1465/files/cabala_mistica.pdf
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/satusabalisisebanafag.pdf
    • https://cdn.shopify.com/s/files/1/0435/2039/3380/files/investment_management_strategies.pdf
    • https://cdn.shopify.com/s/files/1/0438/4564/8546/files/check_if_object_is_empty_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0434/0721/2709/files/45588547911.pdf
    • https://static.usrfiles.com/ugd/b8c837_4fccd8efe8f34e28b96e8f519a8298f9.pdf
    • https://static.usrfiles.com/ugd/c1de29_82d81632d2ae42f5b272a192c0ac94c8.pdf
    • https://static.usrfiles.com/ugd/0dcf4b_9979eea4aa38443c84e34701e87f3ab4.pdf
    • https://static.usrfiles.com/ugd/7e6083_7a66d9ad99fd4e7c99657298802d1d23.pdf
    • https://static.usrfiles.com/ugd/b8c837_9af0223be4134b44aeaca6abddd61bdf.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0938/files/93418859883.pdf
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/26925548574.pdf
    • https://cdn.shopify.com/s/files/1/0438/3893/1109/files/australian_women_s_weekly_children_s_birthday_cake_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/7674/7413/files/93332539380.pdf
    • https://cdn.shopify.com/s/files/1/0431/8999/3621/files/fuxagatifemiwemakuroxifa.pdf
    • https://static.usrfiles.com/ugd/a771bd_1fa3dea20c894e918eeaad8b31394bbe.pdf
    • https://static.usrfiles.com/ugd/b8c837_3ee411929aed468eaa0a2edda25113f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_5c8e513bedeb4f17b4d09eab69f067d9.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_off00004a00.bin
40c3a10970e1a50323d1ac735c8d6d6b959a001dc7dcbd4c91b66c4e8f0ff93a
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A00 5128 bytes
font_01_sfnt_off00005b36.bin
a78bed19cdfabb45d50712347520504557e9be2e387c6d9528170036d08dcaad
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B36 10016 bytes