Malicious PDF — malware analysis report

Static analysis result for SHA-256 f17ee638a14b2569…

MALICIOUS

PDF

77.0 KB Created: 2020-08-30 09:02:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a25fe2ef71e30a6ce9c68199520fbf8b SHA-1: c835584d573758b450560fcfb194cb3a93188257 SHA-256: f17ee638a14b25697ae61d309683bf3e308fa0808d4d3a98d013dc81aeddb789
150 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 a URL that is disguised as a game guide. This URL is the primary indicator of malicious intent. The document body, though heavily obfuscated, also contains the same URL. The ML classifier strongly supports the malicious verdict.

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=guides+gamepressure+rise+of+the+tomb+raider
    • https://static.usrfiles.com/ugd/b8c837_2614918459544740915951193849d94d.pdf
    • https://static.usrfiles.com/ugd/0ebc1f_95ed02bbdf1b4fba801a7fdbfbad072b.pdf
    • https://static.usrfiles.com/ugd/b8c837_c79df8530f58410ab29620deeff8cf9f.pdf
    • https://cdn.shopify.com/s/files/1/0434/4990/9415/files/inventory_sheet_dnd_5e.pdf
    • https://cdn.shopify.com/s/files/1/0429/1959/2103/files/xomovofipapotom.pdf
    • https://cdn.shopify.com/s/files/1/0433/0956/4068/files/xonazo.pdf
    • https://cdn.shopify.com/s/files/1/0427/6980/9564/files/39758060999.pdf
    • https://cdn.shopify.com/s/files/1/0437/7883/4583/files/icloud_photo_sharing_android.pdf
    • https://cdn.shopify.com/s/files/1/0437/7296/9109/files/formatii_nunta_braila.pdf
    • https://cdn.shopify.com/s/files/1/0433/7418/2563/files/los_ojos_verdes_gustavo_adolfo_becquer_descargar.pdf
    • https://static.usrfiles.com/ugd/09c3c7_f46333b2775640aab708f6347658836f.pdf
    • https://static.usrfiles.com/ugd/b8c837_bec52d215bef415bab6634e77357ab05.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_off0000f070.bin
ca5be005d3df73d6a86f1228694a5b7057e36ef5db80e7f689b1770a68715c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF070 5596 bytes
font_01_sfnt_off0001034e.bin
4bde3e3f274299971427e733902fce45e94cf631c7f1939ca73f1a62965a6387		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1034E 10452 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.