Malicious PDF — malware analysis report

Static analysis result for SHA-256 cceaf6a9db6e58a4…

MALICIOUS

PDF

44.2 KB Created: 2020-08-08 00:39:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a72c1be20558da91142012e17a7838e7 SHA-1: b8c46b6cc76d3891ddfe11f29f76001281d651d0 SHA-256: cceaf6a9db6e58a44fea57ac255158918e476c3a15be197618c06a10989ce707
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the text 'Js tutorial for beginners pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=js+tutorial+for+beginners+pdf
    • http://files.artconceptalternative.org/uploads/1/3/1/6/131606349/mowofem.pdf
    • http://files.silbertnation.com/uploads/1/3/1/3/131384777/sebabi-sitijabaku-lavira-nifaginutejika.pdf
    • http://files.allexreddink.com/uploads/1/3/0/7/130739366/veseke.pdf
    • http://daxeniva.durringtontheatricalsociety.com/uploads/1/3/2/6/132695384/foxugafiri.pdf
    • https://cdn.shopify.com/s/files/1/0439/8225/8334/files/halcones_de_venta_libro.pdf
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/61570073773.pdf
    • https://cdn.shopify.com/s/files/1/0436/9648/8613/files/1652137067.pdf
    • https://cdn.shopify.com/s/files/1/0432/6257/4750/files/xupowinil.pdf
    • https://cdn.shopify.com/s/files/1/0435/4709/9290/files/autonomous_learning.pdf
    • https://cdn.shopify.com/s/files/1/0435/4513/3215/files/ranedonakenawimipo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5706/0769/files/90883192084.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/66284376451.pdf
    • https://cdn.shopify.com/s/files/1/0437/4154/4599/files/zip_codes_longitude_latitude.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_off00006f24.bin
062581ca145ce74f211b9e85ce097f7b47d6e0eaeb1aa4a36ffcb3b62cf59e16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F24 5336 bytes
font_01_sfnt_off00008151.bin
026d62dcffb2d606b478cffe4667eb82fc91cd6a0c07e44352b7e977e913d41b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8151 10196 bytes

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