Malicious PDF — malware analysis report

Static analysis result for SHA-256 6296e7cbcda8d577…

MALICIOUS

PDF

29.3 KB Created: 2020-07-15 21:16:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01bcefa4bbfe583db9fa5c33ed19d762 SHA-1: 8ffc0cafc2080a2f19ffc32277de20aff0f6ac3b SHA-256: 6296e7cbcda8d577d6e512995a3e5643d9192e7c31a369f17413b6b435708064
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external websites, a common tactic for SEO link farms and potentially malicious redirects. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically flags a URL pointing to known malicious infrastructure. While no scripts were extracted, the structure and link farm behavior suggest an attempt to drive traffic to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/wb?keyword=mission%20impossible%20theme%20song%20piano%20sheet%20pdf
    • http://files.barrysutvadventures.com/uploads/1/3/0/8/130874110/rovovotiri.pdf
    • http://files.gnbbarassn.org/uploads/1/3/1/3/131383655/vesedukopej.pdf
    • http://files.clarelouiseroberts.com/uploads/1/3/1/3/131383386/wakanofededot.pdf
    • http://files.evelineverhulst.nl/uploads/1/3/2/3/132302819/julupe.pdf
    • http://files.thirdcinemaproductions.com/uploads/1/3/1/3/131379749/sonazez.pdf
    • http://files.whiterosestance.com/uploads/1/3/0/7/130776483/nugagusug-sosafufasip-rofejuxokaxekub.pdf
    • http://files.everyview.net/uploads/1/3/1/3/131398022/jiripifupewit.pdf
    • http://files.shuanglongli.com/uploads/1/3/1/4/131483279/joxurepuriliz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://navofifur.files.wordpress.com/2020/06/76282809239.pdf
    • https://jimewiwujexo.files.wordpress.com/2020/07/dajanojinonaxabujov.pdf
    • https://luxotamataxo.files.wordpress.com/2020/07/videzurutuguwitugavuvip.pdf
    • https://magebabug.files.wordpress.com/2020/07/nodotomonoledag.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6102/6719/files/kolaxalobubu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/49413767559.pdf
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/37890293667.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/pimutebaxapatin.pdf
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/59723638658.pdf
    • https://cdn.shopify.com/s/files/1/0433/3250/1656/files/xuzurupepe.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/xufakivulo.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000594c.bin
49f185efbda9001aa7973b6a8937596fed3f474541a9263d91215ab42474f179		 pdf-font-stream PDF embedded font (sfnt) at offset 0x594C 5292 bytes

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