Malicious PDF — malware analysis report

Static analysis result for SHA-256 d50069b34a027d6f…

MALICIOUS

PDF

36.5 KB Created: 2020-09-11 00:25:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 807e4c12edfd3bef1809b2ff5261436d SHA-1: d84b957c9391d193448f06c7c5cf8272b885fbbb SHA-256: d50069b34a027d6fb9e5a51a6def198195176ba45df5b27594d310c670e85abc
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/pify?keyword=bir%25C5%259Feyler+olacak+yar%25C4%25B1n+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links. The document body, though partially corrupted, contains the same redirect URL, reinforcing the malicious intent. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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.club/pify?keyword=bir%25C5%259Feyler+olacak+yar%25C4%25B1n+pdf
    • http://jutovi.blackcountryfishing.co.uk/uploads/1/3/1/4/131454093/kinisa-vozijanajexiro-vajumokuj.pdf
    • http://fatako.anyakunze.com/uploads/1/3/1/4/131438873/voxuviwipivimux_tolugejulebeso.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_7e15fb6fece5427ea267d233d70d6ddc.pdf
    • https://static.usrfiles.com/ugd/66f3f9_a5856259d54c4fa4a1a66993ced193bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_cc2ca64bcc87477fb5d65930b045d250.pdf
    • https://static.usrfiles.com/ugd/a0905b_4dbf14fc58bc41569db7aed978004188.pdf
    • https://static.usrfiles.com/ugd/6da380_ec7dc18bd0b148de80bfb66d2f936945.pdf
    • https://static.usrfiles.com/ugd/c345b0_d9311331127e4152ba93d92f0ab17b3a.pdf
    • https://static.usrfiles.com/ugd/6f7357_59a7cde3fb9b456f9f385678a427cbff.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/lovemaretokibovipu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/kha_file_khng_cho_copy.pdf
    • https://cdn.shopify.com/s/files/1/0434/1586/3447/files/antibiotic_resistance_book.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_off00004e04.bin
5f841a9e2c9ae18c2299c0f967ca252528de43588c8f0e1d8b22640829a6dc55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E04 5464 bytes
font_01_sfnt_off000060b7.bin
3c27843c729ec6ff8e8cb15ec449e25798c86b709f9b89cfb6a58f59f74bef4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60B7 10984 bytes

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