Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9247c941e0a7c71…

MALICIOUS

PDF

40.5 KB Created: 2020-09-18 02:59:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0208281dc7d97b0c4f87b7b25f2b42cd SHA-1: 2bcf5ee68408518eb6ba0371b43c5d063c4922a8 SHA-256: e9247c941e0a7c711577806ce8944bee56d39c30659cf2cd0e9d4998d1c4228c
150 Risk Score

Malware Insights

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

The PDF contains a direct link to a known malicious redirector, ttraff.cc, which is designed to lead users to potentially harmful content. The document body, though heavily obfuscated, contains text related to game cheats and the malicious URL, suggesting a lure to a scam or phishing site. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine visibility for the malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=douchebag+workout+beach+club+unblocked+cheats
    • http://files.teresele.com/uploads/1/3/0/7/130775704/feposuguninu.pdf
    • http://xoterigu.supportingeducationllc.com/uploads/1/3/2/6/132681237/3806971.pdf
    • http://nulabexab.westernanimalresources.org/uploads/1/3/2/6/132696063/patoxiwowu.pdf
    • https://cdn.shopify.com/s/files/1/0463/7815/6187/files/19247076407.pdf
    • https://cdn.shopify.com/s/files/1/0431/7023/4524/files/manual_de_auditoria_financiera_contraloria_peru.pdf
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/26350821058.pdf
    • https://cdn.shopify.com/s/files/1/0432/0896/6301/files/74950938347.pdf
    • https://2c8db9dd-6d47-446a-8583-001b0a0746f9.filesusr.com/ugd/d1c05f_baa6e0c3380149d7acc4cc73c92eb874.pdf?index=true
    • https://b490d036-01f5-4406-852f-a8a46d9cd520.filesusr.com/ugd/b98abb_32c4bf7c213e4761830d52d95b505e82.pdf?index=true
    • https://fc5f7619-c96b-4d6b-b3c0-10c1f45d14de.filesusr.com/ugd/599026_18e08f5dfa6047bcb6b1bf79179c027a.pdf?index=true
    • https://7962ac5d-927d-45c6-a536-ef935dbd2998.filesusr.com/ugd/89b1bc_3793d64fd02f4217b753da1ad7b97fcd.pdf?index=true
    • https://9d4a897a-2412-485a-81f2-0a4bb4fc9a68.filesusr.com/ugd/575fb0_d9f8dcdfaf68478885c5d785d493e6c7.pdf?index=true
    • https://aa54bc69-a8ee-4acd-b4f5-eebd256d120f.filesusr.com/ugd/b42fd6_d2f3924e28334c3fbbdabe40f0d8dc29.pdf?index=true
    • https://64aef653-9b21-46d6-bf4d-b466f8f4ffb8.filesusr.com/ugd/7182f3_2b34dc9289884584b07615694f33de3e.pdf?index=true
    • https://0ade54ef-0c10-44f0-8c9d-39a5b5c8097f.filesusr.com/ugd/460efe_8ec32a4ef2d94e21abfa89627604b97a.pdf?index=true
    • 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_off00005ef6.bin
e0f04eca199fc25f8f0e64f7b079aee6c2b9a9447b68dcef4af3a57a71b7a661
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF6 5496 bytes
font_01_sfnt_off000071ae.bin
19c1170a3e0dda7f4d758b853549e4acc1ea3a9c3d026aa8658bad6f9f99248a
pdf-font-stream PDF embedded font (sfnt) at offset 0x71AE 10380 bytes