Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ed8fb082a0313e…

MALICIOUS

PDF

55.8 KB Created: 2020-09-01 03:43:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c64569b75a09064cafb78ab6ca2f3b6 SHA-1: 21f09656ebce8158f18b8a6b2de18b502dc4c4d8 SHA-256: d2ed8fb082a0313e7d08ac7f5671cdb0c4bbd7b6a319f4a7bd635cc5d30e9df9
130 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users into clicking through to potentially harmful content. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary mechanism for the attack. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=behringer+xr18+asio+driver
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/24656483367.pdf
    • https://cdn.shopify.com/s/files/1/0433/9302/4149/files/62023095831.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/43406600254.pdf
    • https://static.usrfiles.com/ugd/909b15_1a5f85407d43485a9b214fe7361ee18a.pdf
    • https://static.usrfiles.com/ugd/5b604d_36a71eae39fd4a8384105e2eadf6ee6e.pdf
    • https://static.usrfiles.com/ugd/37428b_bc3c765e67714876a0de45b6752b9c98.pdf
    • https://static.usrfiles.com/ugd/b8c837_89c8ccee109b40e9ad89d3b19b6d3d23.pdf
    • https://static.usrfiles.com/ugd/756799_7aa86ba8a6d04565a5cdec03afe40be4.pdf
    • https://cdn.shopify.com/s/files/1/0433/5219/5230/files/punctuation_quiz_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/centrelink_aged_care_pension_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0444/2416/7591/files/hvac_technician_certification_exam_guide.pdf
    • https://cdn.shopify.com/s/files/1/0436/2534/9273/files/halogen_derivatives_of_alkanes_and_arenes_mcq_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/9597/3276/files/world_order_kissinger.pdf
    • https://cdn.shopify.com/s/files/1/0438/4007/7981/files/98485661576.pdf
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/nafexemalaleletu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/49497884428.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_off00009136.bin
a69f44aa4a390093a672bca655c8fc65953074cfdb55dd7ad78fd4ccce770bb6
pdf-font-stream PDF embedded font (sfnt) at offset 0x9136 5480 bytes
font_01_sfnt_off0000a3df.bin
8f1d103689441d52a30cb3662adc34fcb8bea302b5eac23f07b352ecb50fec14
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3DF 15120 bytes