Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3188c93ec6dc382…

MALICIOUS

PDF

46.7 KB Created: 2020-08-30 06:23:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: db297b0c29f74af9521d359c9aebe723 SHA-1: da4f3d5cb192a8fd48208b00ff694a89c2207b16 SHA-256: c3188c93ec6dc3820327f86a56725e3c4aaee79c92629e26beb1676fb42b7b9f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with one critical heuristic identifying it as a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'Baby driver online full movie free' and the malicious URL, strongly suggesting a lure for pirated content to redirect users to malicious infrastructure. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=baby+driver+online+full+movie+free
    • https://cdn.shopify.com/s/files/1/0438/9529/2059/files/asset_management_system_project_report_in_php.pdf
    • https://cdn.shopify.com/s/files/1/0429/3070/0455/files/the_gift_cecelia_ahern_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8875/6384/files/43384247758.pdf
    • https://cdn.shopify.com/s/files/1/0431/3235/4727/files/us_history_timeline.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/acknowledgment_for_school_project.pdf
    • https://static.usrfiles.com/ugd/b52961_2e9f755dfeda4f4a82122865fcfec6ef.pdf
    • https://static.usrfiles.com/ugd/b8c837_778064ffdee04353abbbbfaab9dbc789.pdf
    • https://static.usrfiles.com/ugd/0adedf_787e2598200343109284063db9d3c2bf.pdf
    • https://cdn.shopify.com/s/files/1/0432/9809/5272/files/bixigigudapavaruwakede.pdf
    • https://cdn.shopify.com/s/files/1/0431/8016/3229/files/zesekufadujofokeg.pdf
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/42539625839.pdf
    • https://cdn.shopify.com/s/files/1/0437/8266/8437/files/49754049731.pdf
    • https://cdn.shopify.com/s/files/1/0429/1290/7423/files/zedabosovu.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_off00006cab.bin
6846a95d60278e60c5a46a64e60156cb74f7631e2c8105954f857dfbbc09ceaf
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAB 5224 bytes
font_01_sfnt_off00007e64.bin
178b3ea7b964a3b23bd45bc3f3a679fed01963b335ad8576c68feecb61d2caca
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E64 15424 bytes