Malicious PDF — malware analysis report

Static analysis result for SHA-256 a066db1751ec9917…

MALICIOUS

PDF

46.8 KB Created: 2020-08-03 11:03:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 451350b0b49a8e9ab06bd27054fcb3db SHA-1: f7d1e6cf38f361d931c2e4c6b0e70ff3288f0880 SHA-256: a066db1751ec9917ad3aeed843cbf20436b40ed805d2fd6728f376a8c72486c3
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=ninjutsu+training+manual+pdf'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and references to PDF files, reinforcing the lure. The primary intent appears to be redirecting the user to a malicious site via the ttraff.cc URL.

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=ninjutsu+training+manual+pdf
    • http://files.edgeservicesllc.com/uploads/1/3/0/7/130738662/mitemet.pdf
    • http://files.littlechalkhouse.com/uploads/1/3/2/7/132712015/sagukapaneveru_pizepe_namewoj.pdf
    • http://files.nahomiichino.com/uploads/1/3/0/8/130874254/janoterogawor_jebima_taxilekigev.pdf
    • http://files.stjohnslutheran-tecumseh.com/uploads/1/3/0/9/130969621/rikikirikeferur-tibowi-boforexi-dajumoku.pdf
    • https://cdn.shopify.com/s/files/1/0440/8383/9128/files/metejeluniwenurasa.pdf
    • https://cdn.shopify.com/s/files/1/0439/3825/0910/files/yoo_jae_suk_wife.pdf
    • https://cdn.shopify.com/s/files/1/0434/0537/7688/files/batalev.pdf
    • https://cdn.shopify.com/s/files/1/0437/8604/3541/files/gavujanaxobudo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3354/2303/files/4r70w_manual_valve_body.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/gatevujadixunujupotim.pdf
    • https://cdn.shopify.com/s/files/1/0429/4616/6943/files/7655235478.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rapuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/9178998377.pdf
    • https://cdn.shopify.com/s/files/1/0431/7485/4820/files/89594729716.pdf
    • https://cdn.shopify.com/s/files/1/0433/7362/5500/files/how_to_make_bold_text_in_discord.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_off00006ea6.bin
6da61c071198b2c784974ab461b501b5603c66c589d1a2120366a7c1bfe65673		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA6 5408 bytes
font_01_sfnt_off00008104.bin
8fc97693f26575b8e190fe120ef67d7cea1c2092c106e04fde9244d6eac3b6c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8104 14276 bytes

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