Malicious PDF — malware analysis report

Static analysis result for SHA-256 201a97a364e83850…

MALICIOUS

PDF

35.4 KB Created: 2020-06-06 00:51:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: acb9ece2df7e2893db41d51a974340b5 SHA-1: 47c3161469558118c2257c924190f30d4afd2373 SHA-256: 201a97a364e83850eeb2e49825a271b71cc52cf942f65bb015ba6c77a4ea9763
92 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and contains a significant number of external links, indicating a link farm or redirection strategy. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this pattern, suggesting the document's primary purpose is to host numerous links to other potentially malicious sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://ltqd.brdge.org/uploads/1/3/0/2/130289096/130289096.html#the+catcher+in+the+rye+audio
    • http://misfitswaterworks.com/uploads/1/3/0/4/130489563/ff5e557a2278a.pdf
    • http://agoodmoment.com/uploads/1/3/1/4/131452804/kavasubedipoxufaxa.pdf
    • http://gabriellenorth.blog/uploads/1/3/0/9/130969362/tafajededek.pdf
    • http://luctravers.com/uploads/1/3/1/0/131071298/kivowumudefi.pdf
    • http://robustlearninginc.com/uploads/1/3/0/2/130287813/5803782.pdf
    • http://cobequipmentdesign.com/uploads/1/3/0/5/130550827/fuxosefonewufi.pdf
    • http://projectdeliveryaustralia.com/uploads/1/3/0/4/130435794/960d21b059585.pdf
    • http://remote.scsoccerarena.com/uploads/1/3/0/4/130483660/2860604.pdf
    • http://cheltenhammarket.co.uk/uploads/1/3/1/4/131438514/kebalurokodugo_ziwoxuruxetu_jugotugenulerez.pdf
    • http://rouletteinvestor.com/uploads/1/3/0/9/130969329/xenag-sipapufadaza-puzobam.pdf
    • http://bornwildkids.com/uploads/1/3/0/5/130539442/majanulepuko.pdf
    • http://findingballast.com/uploads/1/3/1/3/131383467/122319.pdf
    • http://constructivecritique.com/uploads/1/3/1/3/131382583/3533272.pdf
    • http://kimberlyallston.com/uploads/1/3/0/7/130776363/gomivenodemad.pdf
    • http://ltqd.brdge.org/uploads/1/3/0/2/130289096/terms.html
    • http://ltqd.brdge.org/uploads/1/3/0/2/130289096/dmca.html
    • http://ltqd.brdge.org/uploads/1/3/0/2/130289096/policy.html
    • https://zebutenot.files.wordpress.com/2020/06/90708148107.pdf
    • https://surokukafat.files.wordpress.com/2020/06/59576342227.pdf
    • https://basokegutig.files.wordpress.com/2020/06/41749700649.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060df.bin
302fc512ecd22c7baf49616b7bc74643e47454f0dc008d012a002095b02b3ef3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60DF 10008 bytes

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