Malicious PDF — malware analysis report

Static analysis result for SHA-256 321447b40bdd2d29…

MALICIOUS

PDF

43.2 KB Created: 2020-08-19 07:48:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9171b62330c77f8e70b879472b3203e4 SHA-1: 989a7ab7a103eb40632e73f4f3b191646eb7156b SHA-256: 321447b40bdd2d2964555fa167ae4d6597608651d8d41724d319b66bb55e9890
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF documents. One of these links, 'https://ttraff.com/pify?keyword=bc+transit+whistler+riders+guide', is a known malicious redirector. This suggests the document is designed to lead users to malicious sites through a link farm strategy. 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/pify?keyword=bc+transit+whistler+riders+guide
    • http://kered.ellenmulholland.com/uploads/1/3/1/0/131070571/remibipipali-tutuvidi-ramumoniko.pdf
    • http://files.aiwonglawyers-en.com/uploads/1/3/0/8/130813747/9536606.pdf
    • http://files.torlinofficial.com/uploads/1/3/2/3/132302963/buwafogowemibar.pdf
    • http://files.lauraadinolfe.com/uploads/1/3/2/7/132712163/6390372.pdf
    • http://files.culturalinnovationgroup.org/uploads/1/3/1/1/131164355/miduvinizow_rerokitopowuf_revugodomenajo_rilaban.pdf
    • https://cdn.shopify.com/s/files/1/0438/8667/4088/files/altivar_21_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/2871/6439/files/effective_classroom_management_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/ffmpeg_encoding_guide.pdf
    • https://cdn.shopify.com/s/files/1/0452/2380/5079/files/mastering_the_art_of_french_cooking.pdf
    • https://cdn.shopify.com/s/files/1/0431/0486/2374/files/buch_abramelin.pdf
    • https://cdn.shopify.com/s/files/1/0432/5769/2320/files/acoustic_guitar_lessons_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0430/6891/5863/files/wakubulerutitib.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/3492857283.pdf
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/19646836755.pdf
    • https://cdn.shopify.com/s/files/1/0434/7238/8246/files/sowaxosiwis.pdf
    • https://cdn.shopify.com/s/files/1/0449/4236/0744/files/amazing_spider_man_2_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/7328/9894/files/adverbios_de_grado_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/digital_oscilloscope_manual.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_off0000698d.bin
7e1fcd2267214f954e9ab754fcc812d5fd7dd66979d8f87b715190736ca151a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x698D 5340 bytes
font_01_sfnt_off00007bb8.bin
c9f7c0171f8603425e04183a22f6adf7bee6ff48c5ceeb40b5883cbd42a63e9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB8 10560 bytes