Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac32fc4e7e9ae5f3…

MALICIOUS

PDF

44.1 KB Created: 2020-08-31 10:36:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c352b5ec522b3eef373ea75db423b2b SHA-1: b352ff3fc17284421f1f485f753ff2465c616e7b SHA-256: ac32fc4e7e9ae5f3bf67b93458482343565ee2765d4e5e18506cfc501792ce0b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link that redirects to a known malicious domain, disguised with a keyword related to game cheats. This indicates a phishing or scam attempt to redirect users to malicious infrastructure. The PDF also contains a large number of external links, many pointing to Shopify domains, which is characteristic of SEO link farms used to manipulate search results and drive traffic to malicious sites.

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=war+thunder+ps4+cheats
    • https://cdn.shopify.com/s/files/1/0437/2001/6021/files/probability_tree_diagrams_exam_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0444/4350/0710/files/xivalutori.pdf
    • https://cdn.shopify.com/s/files/1/0435/7157/6993/files/critical_path_method_network_diagram.pdf
    • https://static.usrfiles.com/ugd/ef7b09_9820b8c14fb9476ab4ba076e50ef45bb.pdf
    • https://static.usrfiles.com/ugd/39cb9d_0cbc9c0c719a46e69cda480dc52d669c.pdf
    • https://static.usrfiles.com/ugd/33a2e4_0409e86e17b24a46ada613d2c24c80ed.pdf
    • https://cdn.shopify.com/s/files/1/0437/9521/8594/files/alejandra_pizarnik_libros.pdf
    • https://cdn.shopify.com/s/files/1/0431/2704/6298/files/fapogajekejitepimusif.pdf
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/9330325831.pdf
    • https://cdn.shopify.com/s/files/1/0432/6051/0376/files/dilegumodusi.pdf
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/wobuzutijupapur.pdf
    • https://static.usrfiles.com/ugd/71fd01_3944c806e405485fad0387645c45e107.pdf
    • https://static.usrfiles.com/ugd/868401_15966d9df3a0435ea73132af7e54779a.pdf
    • https://static.usrfiles.com/ugd/353d00_d342de0de327452984b12d0ad1729403.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_off00006e37.bin
8a49ae22444a859d41b07f3ac735f307ce2be78cc3d93c42a55820bb47c4888a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E37 5232 bytes
font_01_sfnt_off0000800a.bin
393bd880faebbda2519441c02609a759f2ba84ca029530329ffa57902d9683e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x800A 10524 bytes

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