Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc7de8f21c225259…

MALICIOUS

PDF

63.9 KB Created: 2020-07-29 04:13:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c33eaa04a80ae98b475d3099b89d9240 SHA-1: 3db3999d8b7d92694f8543befc8db91fce71fb0e SHA-256: cc7de8f21c2252599adef8f07b620ceb52b57f69f62be06360953101eb2ebfe8
150 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, identified as a PDF link farm. One of the primary links redirects to a known malicious redirector. The document body contains text related to a song title, likely a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=achha+lagta+hai+song++pagalworld
    • http://files.sweetlifeyogastudio.com/uploads/1/3/2/6/132682441/muxuwofa-gijemosozot-pulologisujir-lovogutezef.pdf
    • http://files.balloontwistersdcvamd.com/uploads/1/3/0/9/130969375/gipagazovupibiz_tolokaduwimola.pdf
    • http://files.peabody-fence.com/uploads/1/3/1/4/131406337/5224598.pdf
    • http://files.art2day.co.uk/uploads/1/3/0/7/130775677/d8f3acbeffd348d.pdf
    • https://cdn.shopify.com/s/files/1/0430/8933/0325/files/volebuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/gafojiwidojoxasub.pdf
    • https://cdn.shopify.com/s/files/1/0428/7466/7164/files/kitumifasuguxa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1675/7153/files/duwagejafazagasukez.pdf
    • https://cdn.shopify.com/s/files/1/0430/8336/6551/files/basezizekuzotodor.pdf
    • https://cdn.shopify.com/s/files/1/0434/1691/2023/files/83687635518.pdf
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/tapasizopajumigufiwegolu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9308/9692/files/xoledibivasiragisakokol.pdf
    • https://cdn.shopify.com/s/files/1/0431/1033/4620/files/jobevovexanurov.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/vozitajowijinomumizaze.pdf
    • https://cdn.shopify.com/s/files/1/0434/7052/0470/files/wogexazuzunusinapenosemi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1093/3414/files/40099098853.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_off0000afb4.bin
e000b2b2cd85fb898b19fd14343ebcab99e3da5f613a978f2abcc568b85e6df6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFB4 5084 bytes
font_01_sfnt_off0000c0f0.bin
ffa5c86c4f9573c3052c7ef0889e8426028e63a543d1782dc4803a7c265ae235		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0F0 15944 bytes

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