Malicious PDF — malware analysis report

Static analysis result for SHA-256 aceb5bb59c1ff6a2…

MALICIOUS

PDF

41.9 KB Created: 2020-08-20 19:02:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f8c2ddf631940f86feb4fbc4ae4e1dc SHA-1: 19ba57f0904919f569b7900fa55d92428e51fc13 SHA-256: aceb5bb59c1ff6a26e938eaf8fe75774d9041d175d3cd7ba690e006c13b6ccec
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with one critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting it is a 'Bosch car battery catalogue pdf', which is likely a lure. The primary malicious link identified is https://ttraff.cc/pify?keyword=bosch+car+battery+catalogue+pdf, which redirects to other URLs. No scripts were extracted from this sample.

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/pify?keyword=bosch+car+battery+catalogue+pdf
    • http://files.myweeklygrind.com/uploads/1/3/2/6/132695714/kimevek.pdf
    • http://zamafoza.ateachersponderings.com/uploads/1/3/1/4/131437508/98b32608b24.pdf
    • http://files.mindscapegallerystl.com/uploads/1/3/2/6/132683111/1329c.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/vejeboz.pdf
    • https://cdn.shopify.com/s/files/1/0430/0262/6202/files/87580914892.pdf
    • https://cdn.shopify.com/s/files/1/0431/0528/8352/files/27174823838.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/zosunegexesewupukuduzod.pdf
    • https://cdn.shopify.com/s/files/1/0440/5762/4726/files/to_selena_with_love_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/9539/9325/files/68220987203.pdf
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/vesoparejelepuzigus.pdf
    • https://cdn.shopify.com/s/files/1/0439/6479/2990/files/32056035062.pdf
    • https://cdn.shopify.com/s/files/1/0432/0188/8416/files/fundamentos_de_matemtica_elementar_analise_combinatoria.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_off000064ff.bin
9b05a1d0e86550b251b53de9cf5c0b231b25438c6ee099c8a937542e999c49a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64FF 5708 bytes
font_01_sfnt_off00007867.bin
73b243d2b0628c273469595a0a5366fb24e660d9ff9e65032d594f0cbdfea84d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7867 10060 bytes

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