Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5936f83dc71fe3c…

MALICIOUS

PDF

104.1 KB Created: 2020-08-30 22:43:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 506ab511cb56fac12fc3d0c0d3b0b0b8 SHA-1: 228ce318ae3070996f5ef8f2bd14e38ac5950242 SHA-256: e5936f83dc71fe3cbc66c18e7fc387c98cf014097ef9ba3a6b80e99e423b9682
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=code+geass+r1+episode+8+english+dub'. This indicates a social engineering attempt to lure users to a potentially harmful site. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation or to obscure the malicious destination. No scripts were extracted, but the presence of a malicious redirector is sufficient to classify the attack pattern.

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.com/wix?keyword=code+geass+r1+episode+8+english+dub
    • https://cdn.shopify.com/s/files/1/0434/0567/2597/files/tesol_quarterly.pdf
    • https://cdn.shopify.com/s/files/1/0433/4203/7150/files/interesting_gk_questions_answers.pdf
    • https://cdn.shopify.com/s/files/1/0438/1779/5741/files/automatic_control_systems_10th_edition_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/5134/3269/files/attention_charlie_puth_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/89645808020.pdf
    • https://cdn.shopify.com/s/files/1/0431/5296/5792/files/fipire.pdf
    • https://cdn.shopify.com/s/files/1/0432/8351/3499/files/bovizumobakam.pdf
    • https://cdn.shopify.com/s/files/1/0459/9395/1399/files/2547543310.pdf
    • https://cdn.shopify.com/s/files/1/0462/3692/6103/files/25456890812.pdf
    • https://cdn.shopify.com/s/files/1/0429/3220/7782/files/attrition_analysis_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/1135/0439/files/xolefatadalazil.pdf
    • https://cdn.shopify.com/s/files/1/0429/0831/9903/files/dashboard_confessional_stolen.pdf
    • https://static.usrfiles.com/ugd/8ba634_6f156fc8243a449ab76f331fcce32252.pdf
    • https://static.usrfiles.com/ugd/b8c837_bafe44b636f941a88a8734836f0c4a9c.pdf
    • https://static.usrfiles.com/ugd/b8c837_e5b62454bc6f48cb9e2f2105fbeffaeb.pdf
    • https://static.usrfiles.com/ugd/b8c837_82ffa41a2f0a4ea58ef08650f38e5c37.pdf
    • https://static.usrfiles.com/ugd/0dcf4b_326fd397f3824e5cb414ddd7a09992d2.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eca3.bin
7020f6300c25f22ad83e94b3aaf21fda0970e8d00b5a59a391a1ae5a8f207483		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECA3 31232 bytes
font_01_sfnt_off00014d17.bin
6a787b08a984503dd08c8b0873b830b505cd5e515e8167e2c6c1ac061529370c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14D17 5432 bytes
font_02_sfnt_off00015f75.bin
70db941e2efc40dd11ed6cd536df1b2be897370b87753f41e4c34cb60b05de18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15F75 10708 bytes
font_03_sfnt_off0001841c.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1841C 4324 bytes

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