Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2322417eea068e1…

MALICIOUS

PDF

46.3 KB Created: 2020-08-19 06:51:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd19bc374fd7dfd963bb378fec4dc902 SHA-1: 2eb0e030e9d90beea79e24749ccd7d5ae1e7b59c SHA-256: e2322417eea068e1bb24c02af42fbd2f2f32a3d8c7875852597f9cec36ac2914
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to potentially malicious redirectors or are part of a link farm. The document body, though heavily obfuscated, contains a URL that leads to a known malicious redirector, suggesting the primary intent is to redirect the user to malicious content. 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.cc/pify?keyword=bollywood+movies++free+hd+latest
    • http://webefarag.maeveolynn.com/uploads/1/3/1/6/131637113/xizenudabinir.pdf
    • http://files.charcoalbengalcats.info/uploads/1/3/1/6/131637385/391785.pdf
    • http://files.meteamusic.org/uploads/1/3/0/7/130775402/vetonelufetupad.pdf
    • http://files.perthreptile.com.au/uploads/1/3/1/4/131409158/1543074.pdf
    • http://pevebakez.searidgepwds.com/uploads/1/3/2/6/132695535/de2aa0d15.pdf
    • https://cdn.shopify.com/s/files/1/0436/5592/1822/files/shell_scripting_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/8632/2593/files/bedadopi.pdf
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/pajilepumigovuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/rukulonafavu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8235/7663/files/3851018357.pdf
    • https://cdn.shopify.com/s/files/1/0440/0968/5150/files/foundation_papers_in_landscape_ecology.pdf
    • https://cdn.shopify.com/s/files/1/0431/4664/1570/files/3405366866.pdf
    • https://cdn.shopify.com/s/files/1/0429/9915/2799/files/611095577.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_off000069c9.bin
d8d44b3da4c5af875434e4fe59cc3f292890bae167c1bf5e32caee767dddbd09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69C9 5132 bytes
font_01_sfnt_off00007b5b.bin
022023e66820305792095e8d8a3ec875f9c387a4564576a820c4f659db7d954a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5B 10296 bytes
font_02_sfnt_off00009e6f.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E6F 4324 bytes

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