Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeabf49ab0babd0f…

MALICIOUS

PDF

35.1 KB Created: 2020-07-08 13:25:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80af9842eb980a089d462e4b4f606b4d SHA-1: bea5eaef85b56083e20415a50d0da2f418c5968d SHA-256: aeabf49ab0babd0f6584f76db8a1a27756fc790bf248a70fb601fa9ce75133b3
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to host other PDFs. One of the primary links redirects to a known malicious domain, ttraff.com, suggesting a phishing or redirection attempt. The document body, though heavily obfuscated, contains references to the physics book lure and the malicious URLs. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=physics%20book%2011%20class%20pdf
    • http://files.shearserenitysalon.com/uploads/1/3/1/3/131383553/53b9878d6b0f11.pdf
    • http://files.mr-stevens.com/uploads/1/3/0/7/130776864/zoxakaso.pdf
    • http://files.sachagrosselart.com/uploads/1/3/0/9/130969209/belizifimekedaxuwuzu.pdf
    • http://files.reikifortheplanet.com/uploads/1/3/2/3/132302815/5645773.pdf
    • http://files.kimmomoilanen.com/uploads/1/3/0/7/130776567/bobav_gufifek_zarotoguvudomo.pdf
    • http://files.lakemanorestates.com/uploads/1/3/2/7/132710575/8820505.pdf
    • http://files.richlandiowa.com/uploads/1/3/0/9/130969278/nagesozum_tivoworosajavo_tojexokuropa.pdf
    • http://files.localhoodnews.com/uploads/1/3/0/9/130969477/popuzefafer.pdf
    • http://files.evelynpatriciaterry.com/uploads/1/3/1/3/131379395/6970682.pdf
    • https://mitokoru.files.wordpress.com/2020/06/jafosevexe.pdf
    • https://zezumova.files.wordpress.com/2020/06/20227800798.pdf
    • https://mudopepomof.files.wordpress.com/2020/06/99465669296.pdf
    • https://zekirub.files.wordpress.com/2020/07/nufijefusejijizugemejip.pdf
    • https://simupem.files.wordpress.com/2020/06/20894844940.pdf
    • https://xilolak.files.wordpress.com/2020/06/87051170488.pdf
    • https://lijopiwa.files.wordpress.com/2020/07/gunipelixasepetemoxevit.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_off00004d21.bin
f5746e39dbfd2f7205538d9cddb1ff36c36cbd1e1cb176c6e27b25b842399c0d
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D21 4988 bytes
font_01_sfnt_off00005e0d.bin
34ef28990fb119777925e0b616611089d43e5944f5e8fca236860907cbb379ba
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0D 9756 bytes