Malicious PDF — malware analysis report

Static analysis result for SHA-256 abb8645e3863b652…

MALICIOUS

PDF

42.0 KB Created: 2020-09-01 22:44:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 452c0cc0f46feeed0c6388fa2b7311ac SHA-1: 877e029bd5126317894e3d5f91e62bc857bb5c64 SHA-256: abb8645e3863b6523df0b73b9c25091ff8a07ebbb7b160a48b612b28962fdd83
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a fishing report. This indicates a social engineering attempt to direct the user to malicious content. The PDF also contains a large number of links to other PDFs hosted on Shopify and static.usrfiles.com, likely part of an SEO link farm to improve search engine ranking for the malicious redirector. No scripts were extracted from this sample.

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/wix?keyword=bear+creek+lake+arkansas+fishing+report
    • https://cdn.shopify.com/s/files/1/0434/8303/7860/files/latest_yoruba_movies_2016.pdf
    • https://cdn.shopify.com/s/files/1/0433/1608/4891/files/fegiwutivuw.pdf
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/27580767466.pdf
    • https://cdn.shopify.com/s/files/1/0437/7244/4823/files/71888954637.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/the_nanny_full_episodes.pdf
    • https://static.usrfiles.com/ugd/2f7815_695b3e2b29344fcc92d45befb66e31e8.pdf
    • https://static.usrfiles.com/ugd/a6e5e9_538dd8891b3847b49b5992320173c9b0.pdf
    • https://static.usrfiles.com/ugd/b8c837_341ae77d9b094c64a0fc298cbc1c6414.pdf
    • https://static.usrfiles.com/ugd/e3325f_3769730ae68f448bb2c4c5e23ce9f611.pdf
    • https://static.usrfiles.com/ugd/90d19e_689e5eb5171045c6a644faa8eecce68d.pdf
    • https://static.usrfiles.com/ugd/b8c837_f29b2a0d105f4ecba9aed31dac4f6fbc.pdf
    • https://static.usrfiles.com/ugd/b8c837_7a9e5ad0eb9847b6a7410319515f1f37.pdf
    • https://static.usrfiles.com/ugd/3ab5ed_8877e8d09ba54d9da385164124890dcd.pdf
    • https://static.usrfiles.com/ugd/739437_cb1b45c486e646a29dd48b010b6d2cf4.pdf
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/63473612277.pdf
    • https://cdn.shopify.com/s/files/1/0439/8628/8798/files/pitope.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_off000056ee.bin
9424e7e10f0be23f9320c97cd0f27eb894bc01bbca211af12380605c7b86201c
pdf-font-stream PDF embedded font (sfnt) at offset 0x56EE 5180 bytes
font_01_sfnt_off0000687d.bin
6361d702692f869c2024061be36ea762230172d005e479cac30b69e138ccddd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x687D 10560 bytes
font_02_sfnt_off00008c93.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C93 4324 bytes