Malicious PDF — malware analysis report

Static analysis result for SHA-256 4354b93722a18af9…

MALICIOUS

PDF

125.3 KB Created: 2020-08-19 11:09:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c868deb93796ab1b4c81487fdf76917 SHA-1: faf46dd6a752644eca74ad2bf8d525a67d5add7f SHA-256: 4354b93722a18af9b760b3bbba40907c9fdc572b358d80460f87f20d5aa2de3a
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=new+black+panther+party+uniform'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, with the first identified as 'https://cdn.shopify.com/s/files/1/0431/5113/0785/files/al_quran_only_bangla_translation_free_download.pdf'. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. The primary goal appears to be directing users to malicious infrastructure.

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.cc/pify?keyword=new+black+panther+party+uniform
    • http://files.swanleeartdesign.com/uploads/1/3/1/3/131384573/1891305.pdf
    • http://files.havehopeforthejourney.org/uploads/1/3/1/4/131453276/2447945.pdf
    • https://cdn.shopify.com/s/files/1/0431/5113/0785/files/al_quran_only_bangla_translation_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/5041/7827/files/wifegokubuvixi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1858/3192/files/41686742282.pdf
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/sigotalaruwijolexazogis.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/36935257550.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45287622464.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/best_to_word_converter_software_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/xofefifujenibefuvajoxuti.pdf
    • https://cdn.shopify.com/s/files/1/0430/8729/8714/files/31575899335.pdf
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/dunubekufavekewuba.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_off0001b01d.bin
08e21c4396ce95b80484f6c7c9db4b2f3b4475a37bf5ae0aa5c379a34b7336fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B01D 5444 bytes
font_01_sfnt_off0001c290.bin
0fb12df05963fe4ce0e1353426f697cb2f91e64131dc02c1620b406cc8bed572		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C290 10988 bytes

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