Malicious PDF — malware analysis report

Static analysis result for SHA-256 894ebf159da78727…

MALICIOUS

PDF

43.4 KB Created: 2020-08-17 16:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a398f1e4a72ed2f661d3b0bd0ad1e913 SHA-1: c5b3636789ef55cb06b2b3b7eaf75d64ce1fc6e4 SHA-256: 894ebf159da787276a5c8dfd0b76da8fe57b9acd664dd044ba5febf4559a9506
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, forming a link farm. One of the primary links directs to a known malicious redirector at ttraff.ru. This suggests the document's purpose is to redirect users to malicious content through a chain of links. 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.ru/pify?keyword=3d+audio+songs++website
    • http://files.gleimlightmedia.com/uploads/1/3/1/0/131070062/c404fbc1328e.pdf
    • http://files.mhes-ses-bandstrings.com/uploads/1/3/2/6/132682851/6949140.pdf
    • http://loxugug.corpuschristievansville.org/uploads/1/3/2/7/132740873/643813.pdf
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/xilozomavupukekiposak.pdf
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/43141820775.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/nobegisot.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/dowixupumozibavizezajepel.pdf
    • https://cdn.shopify.com/s/files/1/0434/0157/6604/files/tafomuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/0600/9242/files/63925406111.pdf
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/33918916019.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/juxupajajivamuwiri.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_off00006bae.bin
30f823c520519d2d47f18baed1383245e57e16ff6ed52deac24ed205f410092c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAE 5168 bytes
font_01_sfnt_off00007d5c.bin
438683234af2bccd34cf016994a258c4316a0b5a4885e1a777227677b88de58c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5C 10544 bytes

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