Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb2fd762ea5ea85…

MALICIOUS

PDF

41.2 KB Created: 2020-08-19 00:45:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c0f658718dcfc7abbac49fbee811ca9 SHA-1: 29a0eb435eb541698aa15cd2cf5c3abb7ba599ea SHA-256: 1eb2fd762ea5ea852a59f14067d4aa43bf3a294e8432fce231582cbf2ad65ef6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=aristoteles+gran+etica+pdf, which likely serves as a lure to download further malicious content. The document body, though heavily obfuscated, contains references to PDF files and the malicious URL, reinforcing the attack pattern.

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=aristoteles+gran+etica+pdf
    • http://genubet.ucyavneh.com/uploads/1/3/0/8/130813325/juzodotozik.pdf
    • https://cdn.shopify.com/s/files/1/0437/0432/0154/files/wepajutoridagete.pdf
    • https://cdn.shopify.com/s/files/1/0427/9340/2524/files/34549650711.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/guitar_tab_universe.pdf
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/32709566668.pdf
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/kenwood_dpx502bt_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/8555/3061/files/mewejodigodozuva.pdf
    • https://cdn.shopify.com/s/files/1/0429/2509/7126/files/9996781304.pdf
    • https://cdn.shopify.com/s/files/1/0429/5337/5897/files/mobofibesubadid.pdf
    • https://cdn.shopify.com/s/files/1/0434/8080/9622/files/bournvita_quiz_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/6783/4517/files/seravedutowivebur.pdf
    • https://cdn.shopify.com/s/files/1/0428/6906/3836/files/1104010747.pdf
    • https://cdn.shopify.com/s/files/1/0432/7876/2140/files/dureja.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_off00006216.bin
b8e173831301bb0c36671095b4b0ad6de32614b58273877cde907d15f1d47aa6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6216 5312 bytes
font_01_sfnt_off00007432.bin
3b29f7947831bb06a80880f366865278fd915beb2f14fdf654bb19c7836d280d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7432 10548 bytes

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