Malicious PDF — malware analysis report

Static analysis result for SHA-256 44243b8f1182695b…

MALICIOUS

PDF

33.3 KB Created: 2020-09-11 03:10:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e5ed36a10564511262312972d5d0225 SHA-1: eb80f3eb3a6a21309f92a40ffda5263878323f46 SHA-256: 44243b8f1182695bf91b8009dd4ef6c1a68c7e005ceee1afc482c4761a9739c0
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. The presence of a link farm heuristic suggests this PDF is part of a larger SEO poisoning or link distribution scheme. No scripts were extracted from this sample.

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.link/wix?keyword=tchibo+cafissimo+manual+utilizare
    • https://cdn.shopify.com/s/files/1/0435/5781/4431/files/water_cycle_diagram_with_explanation.pdf
    • https://cdn.shopify.com/s/files/1/0428/8308/8547/files/5893109254.pdf
    • https://cdn.shopify.com/s/files/1/0434/9594/8454/files/54815924977.pdf
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/medical_certificate_for_sick_leave.pdf
    • https://cdn.shopify.com/s/files/1/0437/2040/9256/files/tawazejeporinixerogir.pdf
    • https://static.usrfiles.com/ugd/c34eac_c7fd5d226a3b4194ad5e2cdd88b09a32.pdf
    • https://static.usrfiles.com/ugd/7d1dc9_958c12f618804df3b544754940aa0624.pdf
    • https://static.usrfiles.com/ugd/469aea_dd042e4bc061400ea92ea45310f3e01f.pdf
    • https://static.usrfiles.com/ugd/b8c837_11f7ecd756004282906389a3974d8e0e.pdf
    • https://static.usrfiles.com/ugd/d94ae5_c798fe67059d42679ac522a8480b23fb.pdf
    • https://static.usrfiles.com/ugd/10e3af_869a1f6da64041ecbbacc23c9a1de81c.pdf
    • https://static.usrfiles.com/ugd/0a0016_40dae7df9623467180f14295dacdb21e.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_off000046fb.bin
64bcf8b8d7b43ed32db3b3fde005d89f8940f7994562733ce51626c642d26f62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46FB 5260 bytes
font_01_sfnt_off000058c0.bin
6dd91ac6722541ccce357bb3e7b9603d8c9ab1b298a62ce6ed093a3475f98f53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58C0 9508 bytes

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