Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa2dba5bf99272d6…

MALICIOUS

PDF

48.9 KB Created: 2020-08-21 19:05:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22aacb1edcd5926a634164c316c0af39 SHA-1: 0049f0bedca4512c320da8db9835d2ed99527d2b SHA-256: aa2dba5bf99272d63545c9671252bb09ed4e40bb13b97b27e6dddcc3b20a2275
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=wwe+crown+jewel+results+bleacher+report+2019'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the first being 'https://cdn.shopify.com/s/files/1/0429/4931/2665/files/chinese_candlesticks.pdf'. The document body, though heavily obfuscated, also contains the malicious URL, suggesting an attempt to lure users to malicious infrastructure.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=wwe+crown+jewel+results+bleacher+report+2019
    • http://files.chrismonroestudio.com/uploads/1/3/1/3/131398605/lakujelodezemo_wimufuropadar_gawuwatag_suxukopomokogem.pdf
    • http://punesudam.citisolutionshospitality.com/uploads/1/3/1/3/131398186/7203640.pdf
    • https://cdn.shopify.com/s/files/1/0429/4931/2665/files/chinese_candlesticks.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/44806849928.pdf
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/jegorarigaz.pdf
    • https://cdn.shopify.com/s/files/1/0440/0575/2997/files/xumitelarimutabe.pdf
    • https://cdn.shopify.com/s/files/1/0432/7761/5262/files/production_of_ergot_alkaloids.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/jewulafubevejogirubobufag.pdf
    • https://cdn.shopify.com/s/files/1/0432/5454/6590/files/falufubalem.pdf
    • https://cdn.shopify.com/s/files/1/0437/4000/4501/files/9418362272.pdf
    • https://cdn.shopify.com/s/files/1/0435/8032/6051/files/matadifivudo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8062/0955/files/statistical_quality_control_solution_manual_6th_edition_montgomery.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/
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/jego

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000080d4.bin
7d50f5ae997875d22a44a5921607c6b8cf8d7b70deb077978c366d19c8e51894
pdf-font-stream PDF embedded font (sfnt) at offset 0x80D4 5824 bytes
font_01_sfnt_off000094b3.bin
88f680fb04b53d4f10429a7575ea568cf131a965b94e76dd9e627a7993508b4b
pdf-font-stream PDF embedded font (sfnt) at offset 0x94B3 9892 bytes