Malicious PDF — malware analysis report

Static analysis result for SHA-256 754d8645a756a7de…

MALICIOUS

PDF

41.2 KB Created: 2020-09-02 18:12:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93b1c9b890850fdc513770ca2ba7a6fb SHA-1: 95aab068e899f7b2ebccd04bb3de1ae980409e19 SHA-256: 754d8645a756a7defa73ed68fb2dee997bfba5fc6e16cd85474302d2dfbf67c0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'ttraff.me'. The document body, though heavily obfuscated, contains this URL and also references a benign-looking PDF hosted on Shopify, likely as a lure. The presence of multiple PDF links suggests a link farm or redirection strategy to obscure the final malicious destination. No scripts were extracted, limiting the analysis of the payload.

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=guyana+pitch+report
    • https://cdn.shopify.com/s/files/1/0449/9764/0360/files/wordly_wise_book_8_lesson_10_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zudofujavulasosajawigubi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/84848100948.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/53323853917.pdf
    • https://cdn.shopify.com/s/files/1/0435/6666/1800/files/vegatekoputan.pdf
    • https://static.usrfiles.com/ugd/7198c1_73879794ea8744a886f4cc2f4d47b478.pdf
    • https://static.usrfiles.com/ugd/cc089a_516a5f8221264ddcbc315fabc0e95414.pdf
    • https://static.usrfiles.com/ugd/c63bf9_295ae092dc6a44dfb0b3fe839e1c0c28.pdf
    • https://static.usrfiles.com/ugd/b8c837_c2931eb0f4b647fc8cead60f5e2cafda.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0659/files/rising_of_the_shield_hero_season_2_r.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nitopufekuriwuk.pdf
    • https://cdn.shopify.com/s/files/1/0435/9333/4952/files/reiseangebote_im_internet.pdf
    • https://cdn.shopify.com/s/files/1/0432/5018/8443/files/pedev.pdf
    • https://cdn.shopify.com/s/files/1/0429/3374/7878/files/lovofipe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6410/6908/files/kofifopidojimojoduti.pdf
    • https://cdn.shopify.com/s/files/1/0462/4433/1680/files/after_glow_poem.pdf
    • https://cdn.shopify.com/s/files/1/0436/5818/2809/files/terjemah_syarah_burdah.pdf
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/types_of_communities_worksheets_2nd_grade.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_off00006471.bin
bb4336b4a57971f4b0ea0dc3ba7356051899c68e1a9e48b65a89c4a612ba4bec
pdf-font-stream PDF embedded font (sfnt) at offset 0x6471 4944 bytes
font_01_sfnt_off0000754a.bin
f3bbcb8dae3df7d5b3134fff28a0193eea2b283c8942b2e6947d0beea89072a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x754A 10084 bytes