Malicious PDF — malware analysis report

Static analysis result for SHA-256 75174ca5fda76229…

MALICIOUS

PDF

43.8 KB Created: 2020-09-09 01:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0050972618b5f2699b470d1d63b1ccf1 SHA-1: a94bb800664651a5ae0cd779adce5e56d4c0976e SHA-256: 75174ca5fda76229c6d2c1bec995187429c088c60f032b1ea68c5d6479bfbf73
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/wix?keyword=formation+agent+d%2527+escale+a%25C3%25A9roport+marseille', is likely intended to lead the user to a malicious site. The document's content, though partially corrupted, suggests a lure related to a job opening, aligning with common phishing tactics. The presence of numerous other PDF links, while many are benign, indicates a link farm strategy, potentially for SEO manipulation or to obscure the malicious destination.

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=formation+agent+d%2527+escale+a%25C3%25A9roport+marseille
    • https://static.usrfi
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/poxurederiforo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1936/9628/files/adobe_reade_7._0.pdf
    • https://cdn.shopify.com/s/files/1/0466/2552/1829/files/18458784864.pdf
    • https://cdn.shopify.com/s/files/1/0432/8456/2086/files/2163118488.pdf
    • https://cdn.shopify.com/s/files/1/0428/7479/8247/files/bartender_barcode_and_label_design_software.pdf
    • https://static.usrfiles.com/ugd/c79b1c_c55a504ea863450d89f1b07d854b242f.pdf
    • https://static.usrfiles.com/ugd/76de1a_596cb47529c0409ab61450556f08bfcd.pdf
    • https://static.usrfiles.com/ugd/078c79_78f4751eb1ca442aaeb4b6f2b3899099.pdf
    • https://static.usrfiles.com/ugd/4cfbbd_861d2a27d2d2442c9c40da60d4890925.pdf
    • https://static.usrfiles.com/ugd/badafb_7615ea4a5edf41009b93d3f5382dfddb.pdf
    • https://cdn.shopify.com/s/files/1/0438/6747/2037/files/21026674922.pdf
    • https://cdn.shopify.com/s/files/1/0435/6849/6798/files/98287098829.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/fixofuwexazalafe.pdf
    • https://cdn.shopify.com/s/files/1/0463/1976/3618/files/binaduwipukarefepogoz.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_off000064ee.bin
e20062a667badf89b5a2dd63d938594f0065d2e078456284010fd44438bd234c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64EE 5524 bytes
font_01_sfnt_off00007768.bin
ef0f8f5ca8410b0070911ace255b2f974c5791de665ff2d05cc529cfbbb032fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7768 12660 bytes

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