Malicious PDF — malware analysis report

Static analysis result for SHA-256 e44b285f32f7046f…

MALICIOUS

PDF

64.1 KB Created: 2020-08-22 14:47:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c57acf224ebb01690f64cf13bffffd9 SHA-1: 85272091e9313d3dbd4ccad30c58d2667eb4e4c3 SHA-256: e44b285f32f7046ff71cf6ec294374c9d933b78484e0e196328e89c477f357cb
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body text, though heavily obfuscated, contains the string "Ps4 pro media player" and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF's structure and the presence of numerous links indicate a link farm or redirection tactic 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.cc/pify?keyword=ps4+pro+media+player
    • http://files.bstpierrecollection.com/uploads/1/3/0/7/130776423/8317410.pdf
    • http://files.desertroseplayhouse.net/uploads/1/3/1/4/131482991/muvote-tamofujova-mipajenojitisoz.pdf
    • http://files.thebruinpost.com/uploads/1/3/0/7/130775432/390092.pdf
    • http://xipegijix.mehditashdesign.com/uploads/1/3/0/8/130813765/9074473.pdf
    • http://jirakako.allthingsgrammar.com/uploads/1/3/2/6/132695663/bizimobinosid.pdf
    • https://cdn.shopify.com/s/files/1/0439/8258/6014/files/85321154069.pdf
    • https://cdn.shopify.com/s/files/1/0437/8951/6962/files/yield_management_books.pdf
    • https://cdn.shopify.com/s/files/1/0451/2707/3945/files/zesavek.pdf
    • https://cdn.shopify.com/s/files/1/0432/0120/0288/files/fonoxuravirenu.pdf
    • https://cdn.shopify.com/s/files/1/0438/0921/0529/files/sobalijixeb.pdf
    • https://cdn.shopify.com/s/files/1/0465/5277/6862/files/fuxalexuxuxirigudefireses.pdf
    • https://cdn.shopify.com/s/files/1/0428/8829/8659/files/jagevujadupazogubifo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2587/4600/files/61917398662.pdf
    • https://cdn.shopify.com/s/files/1/0436/2141/7122/files/68206321669.pdf
    • https://cdn.shopify.com/s/files/1/0438/1641/9488/files/maditoluvajorofokosugi.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_off0000656a.bin
420d79c64c818dd715e6cc6c3a0e2ddbac04f2c5403d71791fefa226777c2468		 pdf-font-stream PDF embedded font (sfnt) at offset 0x656A 25488 bytes
font_01_sfnt_off0000b50e.bin
98668eb2c25a784cb5353f05aff178f007b70b2b6643000ecf7e2c77b5aedfa3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB50E 5296 bytes
font_02_sfnt_off0000c700.bin
e3d7d5fc21821f1abd57001b2a479cfca0a0c967f55bd001729bc4fcfcc77d9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC700 14172 bytes

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