Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee74b052b1d3450d…

MALICIOUS

PDF

73.1 KB Created: 2020-08-26 11:03:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a60a536fc01d4eeae460db18dbe472d SHA-1: 193a741fa4aaf23812baa60ab1b788d7cb7912a4 SHA-256: ee74b052b1d3450d34e445a938a97a65e11cf3d9b00fd90fcb494e64cd8791a7
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the string "Rocky screenplay pdf" and a URL that matches the malicious redirector. This suggests the document is designed to trick users into clicking the link, likely leading to further malicious content.

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/pify?keyword=rocky+screenplay+pdf
    • http://files.heartofiowabigs.org/uploads/1/3/1/6/131606343/5838935.pdf
    • http://zemavowa.oaklandmillsonline.com/uploads/1/3/0/7/130776436/4f002fed58.pdf
    • http://files.hanahwprintmaker.com/uploads/1/3/0/7/130775129/vunado_wawazupoxekipe.pdf
    • http://files.kristasharmonymusicstudio.ca/uploads/1/3/2/7/132710776/4dbce8.pdf
    • http://xubuw.libertybiosecurity.com/uploads/1/3/1/4/131482952/bukosoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/5150/7112/files/albacea_peru.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/buxidumex.pdf
    • https://cdn.shopify.com/s/files/1/0430/0092/2261/files/97530907786.pdf
    • https://cdn.shopify.com/s/files/1/0432/6991/4782/files/33100881717.pdf
    • https://cdn.shopify.com/s/files/1/0445/3462/8516/files/octane_for_cinema_4d_r20_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/96994597697.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/52744964207.pdf
    • https://cdn.shopify.com/s/files/1/0430/3051/1779/files/36307590795.pdf
    • https://cdn.shopify.com/s/files/1/0438/4410/8453/files/masefamiwowetojubow.pdf
    • https://cdn.shopify.com/s/files/1/0431/1662/6081/files/cambridge_grammar_and_vocabulary_for_the_toeic_test.pdf
    • https://cdn.shopify.com/s/files/1/0447/9008/7829/files/jugomupigudumal.pdf
    • https://cdn.shopify.com/s/files/1/0448/1833/3858/files/49149460564.pdf
    • https://cdn.shopify.com/s/files/1/0433/2778/3080/files/rejopiliko.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_off0000d350.bin
3fbed1c8db861851e0e761946daef0dedc4f2463a39e467be04f8a9fbf721299
pdf-font-stream PDF embedded font (sfnt) at offset 0xD350 4984 bytes
font_01_sfnt_off0000e44e.bin
9ff53089e0a9b342cbb7f38a88ac41353258d5e0a3a352402b674a08161596b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xE44E 10772 bytes
font_02_sfnt_off0001091e.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x1091E 4324 bytes