Malicious PDF — malware analysis report

Static analysis result for SHA-256 3971916e12dae038…

MALICIOUS

PDF

44.2 KB Created: 2020-09-08 11:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa5c375228fa0308d09206276afc86ee SHA-1: 5b434c81855f04303b387af977787a796b263c1e SHA-256: 3971916e12dae03851c626c48f1d52a9748fa374166d634d3904876e0151344b
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 'https://ttraff.me/wix?keyword=green+lantern+first+flight+movie+free'. This URL is presented within the document body, disguised as a search result for a movie. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify-hosted PDFs. The primary malicious intent appears to be redirecting the user to a potentially harmful site.

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.me/wix?keyword=green+lantern+first+flight+movie+free
    • https://static.usrfiles.com/ugd/7be1cd_b8e4d23d1626477099e32771a89bf208.pdf
    • https://static.usrfiles.com/ugd/29c71c_0b62cc6979ad4a829da18b03a0f4c978.pdf
    • https://static.usrfiles.com/ugd/fe83c3_c382ca2ce53f46128ec06739c47de9d9.pdf
    • https://static.usrfiles.com/ugd/0dd040_72266f4d39744994864632d5d7bb070e.pdf
    • https://static.usrfiles.com/ugd/3f4b99_57b9dca2be6043b8ab84e4d44600424b.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokisesuzarutaxiwiru.pdf
    • https://cdn.shopify.com/s/files/1/0462/3099/5095/files/851352287.pdf
    • https://cdn.shopify.com/s/files/1/0437/8843/5613/files/4527823649.pdf
    • https://cdn.shopify.com/s/files/1/0437/9613/6098/files/rupukukuworadototaw.pdf
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/rizodezenavif.pdf
    • https://cdn.shopify.com/s/files/1/0434/2251/5351/files/kendo_grid_angular_checkbox_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/8503/6706/files/86201611438.pdf
    • https://cdn.shopify.com/s/files/1/0432/2672/6568/files/79537506428.pdf
    • https://cdn.shopify.com/s/files/1/0427/9464/7719/files/nopoxomoguboxesa.pdf
    • https://cdn.shopify.com/s/files/1/0443/2723/9836/files/proform_cardio_hiit_trainer_reviews.pdf
    • https://cdn.shopify.com/s/files/1/0434/9437/5576/files/29683575365.pdf
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/vaninuxor.pdf
    • https://cdn.shopify.com/s/files/1/0437/6199/1841/files/jajidepakoj.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_off00006ea3.bin
62d011e86157a1dbc3fb08cea017d8eea81e76c7c8bf6c66645458656e49a00a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA3 5272 bytes
font_01_sfnt_off00008073.bin
8096fc52ab869944e0bbe83f26d3d2f2fd48b3937370851998512ed258c4cdb9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8073 10360 bytes