Malicious PDF — malware analysis report

Static analysis result for SHA-256 e985cc0158ab1a34…

MALICIOUS

PDF

40.1 KB Created: 2020-08-30 09:30:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3aa196a004963a229f6602ac8c97d25e SHA-1: fb4075162b63e87bbd76b87c202d24333d1a5418 SHA-256: e985cc0158ab1a34282ac6e4905bcea20240a15ee72d86a8bca493c5ac6c6d87
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains a URL that appears to be part of a lottery scam. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or phishing.

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=atom+rpg+lottery
    • https://static.usrfiles.com/ugd/cd79e3_c9dcbb484573497eb8d3a4a3a9ebd4d2.pdf
    • https://static.usrfiles.com/ugd/b8c837_f601a48014ad4ce6a86afe8b1550cd5c.pdf
    • https://static.usrfiles.com/ugd/b8c837_abee4bf226834f74b27ad7408eaad281.pdf
    • https://static.usrfiles.com/ugd/b8c837_66acace23f7948cab8c857045f26fa7b.pdf
    • https://static.usrfiles.com/ugd/b8c837_2e5fd569fe664e948182ac763e234286.pdf
    • https://cdn.shopify.com/s/files/1/0439/6387/5486/files/fomixizifusi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/70952877664.pdf
    • https://cdn.shopify.com/s/files/1/0435/2815/9381/files/kizuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/4002454673.pdf
    • https://cdn.shopify.com/s/files/1/0432/9563/7659/files/junoj.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_off00006057.bin
624cc1d9fec818f627ec6ede4f99d392d69c7a8eef4e6fc61a7f4b4d9172f755		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6057 4844 bytes
font_01_sfnt_off000070cb.bin
c83e382311ebd3b142929a4ba44a8138073480b362ad374d24e34d9a01a359fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70CB 10364 bytes

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