Malicious PDF — malware analysis report

Static analysis result for SHA-256 46ccf1e69ee7a98c…

MALICIOUS

PDF

63.6 KB Created: 2020-08-16 11:55:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0366ee627bef67638b334d172760983b SHA-1: 8947e052f1ce55f6c169d3b5df926af5b328d547 SHA-256: 46ccf1e69ee7a98cfe389ca4999d88ef1cb23fbe4dcc6a2f513baeb0f9ae174c
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', disguised within content that appears to be sheet music. The PDF also contains a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicated maliciousness.

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.com/pify?keyword=hallelujah+pentatonix+piano+sheet+music+free
    • http://files.handmadebyluluke.com/uploads/1/3/2/3/132302833/8222641.pdf
    • http://files.johncheck1.com/uploads/1/3/2/7/132741535/gajev-saruxakoxofomuk.pdf
    • http://files.lttsi.net/uploads/1/3/2/8/132815207/givali_reguxifakaki_falanafob.pdf
    • http://fuludero.bsmcmilehighchapter5280.com/uploads/1/3/0/9/130969504/1992405.pdf
    • http://files.akaroatradies.co.nz/uploads/1/3/2/7/132712225/fawefuzop_begere.pdf
    • https://cdn.shopify.com/s/files/1/0436/2544/7587/files/nopujodolebolufasoxeroto.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/41131511300.pdf
    • https://cdn.shopify.com/s/files/1/0428/9688/3868/files/cards_against_humanity_disney.pdf
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/gukupajuwadegimovo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7039/8372/files/63408517729.pdf
    • https://cdn.shopify.com/s/files/1/0441/2856/7448/files/72287797894.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/95961955190.pdf
    • https://cdn.shopify.com/s/files/1/0435/1895/1576/files/sakirulisamuvojusik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kivamusefelozadadazub.pdf
    • https://cdn.shopify.com/s/files/1/0428/3092/1894/files/46235310342.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f47.bin
a59788362f8b48bcef949ec3f07faaff8b9048dbf7f066ebd67b31cf274e284a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F47 5360 bytes
font_01_sfnt_off0000a156.bin
a008220c745834d4ab77d99cde95b0bca6bfec365d2b17ec44a88dcc367d2e42
pdf-font-stream PDF embedded font (sfnt) at offset 0xA156 17860 bytes
font_02_sfnt_off0000d91f.bin
abfd345a6ea1e62b83e5b81470e97c0bb38d81b9d626d8407e597eb2d2192f0c
pdf-font-stream PDF embedded font (sfnt) at offset 0xD91F 16204 bytes