Malicious PDF — malware analysis report

Static analysis result for SHA-256 f757d40b33e2b73d…

MALICIOUS

PDF

47.8 KB Created: 2020-09-02 13:20:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80d913c072d4198300432573b61ff931 SHA-1: 95fc9b804be9187a203586837201edb03131e796 SHA-256: f757d40b33e2b73da1061d4c41904f5ccdb34e4aff61a9bcea1546d073812955
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, disguised as a report on public lighting damage. The PDF also contains a large number of links to external PDFs hosted on Shopify, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact 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=reporte+de+da%25C3%25B1os+alumbrado+publico+cali
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977390730.pdf
    • https://cdn.shopify.com/s/files/1/0461/3842/5497/files/government_job_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0461/9658/8695/files/agrarian_skies_2_beginners_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sagomowaroperovi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/rarezuxijamak.pdf
    • https://cdn.shopify.com/s/files/1/0438/1471/5549/files/completely_randomized_design.pdf
    • https://cdn.shopify.com/s/files/1/0433/7503/4524/files/safugutifotazujawaxisok.pdf
    • https://cdn.shopify.com/s/files/1/0440/6607/8870/files/best_app_to_download_books.pdf
    • https://static.usrfiles.com/ugd/b8c837_8d6882410fd848d0a33e1b415cfd021a.pdf
    • https://static.usrfiles.com/ugd/b8c837_cf4dafc8180c4630bfbebbdf1f5301c9.pdf
    • https://static.usrfiles.com/ugd/738632_30051045126a498bbf0fc4e7eee4204a.pdf
    • https://static.usrfiles.com/ugd/1813b3_15ef4aa3bd5b40db8a0cec6adc433242.pdf
    • https://static.usrfiles.com/ugd/1a89c8_e82a3dec1be0484a97ea4006e117ccdb.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_off00006afa.bin
87fd08fe02894b8e406710d2ee00d570bc98fead3b380dc8272d57e2b2aca48d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFA 5580 bytes
font_01_sfnt_off00007d9a.bin
8a6435b0e7e69d529dadbca03521b29cfdb249ed8cbb377d5a30545f7fe8bcb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D9A 16728 bytes

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