Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca0a2d8f9f4ab8f6…

MALICIOUS

PDF

54.8 KB Created: 2020-08-21 04:21:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3602277f1313b01fcfdb0e61437ea00 SHA-1: d5d5bcdf17696a7136505fbf31f8120228d20fbc SHA-256: ca0a2d8f9f4ab8f684a40cb30f0f29ccc0402099802ce8a084dff83bea5dceb3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=answer+phone+message+in+french, which is likely used to direct users to a malicious site. The document body contains garbled text but also includes the same URLs, reinforcing their presence. No scripts were extracted from this sample.

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/pify?keyword=answer+phone+message+in+french
    • http://gitejul.infiniteshinecleaning.com/uploads/1/3/0/9/130969723/505700.pdf
    • http://rususe.trainathought.com/uploads/1/3/0/9/130969559/sogasujovimelaje.pdf
    • http://files.ebast.net/uploads/1/3/1/4/131410094/gifugukejafu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7950/6847/files/mejoxulutikupagewa.pdf
    • https://cdn.shopify.com/s/files/1/0428/5834/8703/files/puvowoxuwukajo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buwukepenarunowara.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2374/files/dujonerumusipaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/65595926242.pdf
    • https://cdn.shopify.com/s/files/1/0437/2830/6330/files/39358790159.pdf
    • https://cdn.shopify.com/s/files/1/0433/8152/2599/files/australian_capital_territory_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0678/files/65265261742.pdf
    • https://cdn.shopify.com/s/files/1/0437/7876/9045/files/73460803274.pdf
    • https://cdn.shopify.com/s/files/1/0438/1717/3149/files/58218143399.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5137558887.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_off00008362.bin
b7a727a4e3b13214ed506537a661a516ba498aacb5f9ea332ed946971b150550		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8362 5480 bytes
font_01_sfnt_off000095e5.bin
d877bda6f7983a4ece8d595abb0bb820059dd28e02ae5bacb9b5e145ffa9a9c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95E5 10028 bytes
font_02_sfnt_off0000b86b.bin
541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB86B 16204 bytes

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