Malicious PDF — malware analysis report

Static analysis result for SHA-256 7be35c97080519ce…

MALICIOUS

PDF

37.8 KB Created: 2020-08-28 09:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: adf4532fab27ebe131fb5b43fc0656e3 SHA-1: 011c6e7d6e724cf6fde335ddfe64ddc07f307c20 SHA-256: 7be35c97080519ce9b3e1b22e92b0adbc6dc3004fe6aa1d61a76e96c45097bf4
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.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the suspicious URL and appears to be a lure related to a game. The primary attack vector is likely social engineering via a malicious link within the PDF.

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.com/pify?keyword=subnautica+spawn+purple+tablet
    • http://files.gpgcobra.net/uploads/1/3/1/4/131483209/buzebalor_zusome_salejiromejud_tamewu.pdf
    • http://files.trioanima.org/uploads/1/3/1/6/131637529/1a7d82f81f0619.pdf
    • https://cdn.shopify.com/s/files/1/0437/7228/0981/files/besoxomorego.pdf
    • https://cdn.shopify.com/s/files/1/0429/8201/5129/files/15204441566.pdf
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/pebaxojoroj.pdf
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/jolazexukakivujizami.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/adobe_acrobat_reader_dc_apk.pdf
    • https://cdn.shopify.com/s/files/1/0429/9148/5091/files/72667171235.pdf
    • https://cdn.shopify.com/s/files/1/0427/5198/3772/files/lurefeba.pdf
    • https://cdn.shopify.com/s/files/1/0434/0128/1701/files/worksheet_maker_name.pdf
    • https://cdn.shopify.com/s/files/1/0431/7816/4387/files/empirical_labs_distressor_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/finurokago.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a53.bin
c93f55197862ca52abc4c0eb92f79dc97026be8917b49395e27aca5f6d5669bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A53 5036 bytes
font_01_sfnt_off00005b80.bin
ff13b843e9b3909a7e05a7f631bca1e3f86416db01fd14b7e81e29ab0c2bbb10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B80 9672 bytes
font_02_sfnt_off00007c8a.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8A 4324 bytes

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