Malicious PDF — malware analysis report

Static analysis result for SHA-256 3711414470e481c4…

MALICIOUS

PDF

35.9 KB Created: 2020-08-17 05:11:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe3f28238f4cc2648c8987ac58d1d549 SHA-1: e4f0c6500ac268bee568911d1b28fe99611e29d5 SHA-256: 3711414470e481c437295ff8c69115bc24ab2dd1abc36f819c31496ec73c0e81
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=holy+bible+kjv+audio'. This suggests a phishing or social engineering attack aimed at redirecting the user to malicious content. The presence of numerous external links, including those hosted on Shopify, indicates an attempt to create a link farm, potentially for SEO manipulation or to obscure the final malicious destination.

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.ru/pify?keyword=holy+bible+kjv+audio
    • http://files.strictlyformals.com/uploads/1/3/1/4/131453539/1496591.pdf
    • https://cdn.shopify.com/s/files/1/0431/1662/6081/files/2020_general_appropriations_act_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/lightroom_6._0_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/faxusumowavunisipor.pdf
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/music_sheet_blank_printable.pdf
    • https://cdn.shopify.com/s/files/1/0429/2994/6787/files/imperative_board_games.pdf
    • https://cdn.shopify.com/s/files/1/0433/7952/3751/files/multiplying_and_dividing_rational_expressions_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0429/6353/3977/files/manual_roller_bending_machine.pdf
    • https://cdn.shopify.com/s/files/1/0436/9983/0939/files/jspdf_autotable_codepen.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000042b6.bin
607f3a0cd66837bb58c858f11f00e53600d9d807b55584cd19ec7bda313da61c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x42B6 4644 bytes
font_01_sfnt_off00005285.bin
efc51305324063531cad18858c52667cb4b6b8f4d822a8e0dc34d32c0a6186ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5285 10360 bytes
font_02_sfnt_off00007587.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7587 4324 bytes

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