Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00a1dbbf24f0509…

MALICIOUS

PDF

38.2 KB Created: 2020-07-10 23:03:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81229b8c49cbc09a472bdafa51df385e SHA-1: 302289e013cfd8277daa24b4eda30c1e135bce8d SHA-256: c00a1dbbf24f050919c0aebfe374a18fe04ef99abe6a91ba86158a6f350d09e4
128 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URLs, suggesting a deliberate attempt to lead the user to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern. 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/pify?keyword=bankersadda+reasoning+pdf
    • http://files.rootsdesignco.com/uploads/1/3/0/7/130776413/86363851.pdf
    • http://files.gregpicardandwendypicardgorham.com/uploads/1/3/0/9/130969532/sazuxoseroj-nupadupotu.pdf
    • http://files.pamsteashoppe.com/uploads/1/3/1/3/131384789/59b03f6f49c09c.pdf
    • http://files.rockypointboatdock.com/uploads/1/3/1/8/131871480/pijoramozaniguf.pdf
    • http://files.norcalsmartvestorpro.com/uploads/1/3/2/7/132710655/96f0fa3.pdf
    • http://files.david-jones-society.org/uploads/1/3/0/8/130814642/dixagululekivex_tekixomixe.pdf
    • http://files.lkoc.org/uploads/1/3/1/3/131383497/bofepowoj.pdf
    • http://files.breathefreeme.org/uploads/1/3/2/3/132302987/wixejunusoruw.pdf
    • http://files.mercerscaffolding.com/uploads/1/3/0/7/130776826/panowugizozufoxo.pdf
    • http://files.afrisekenergy.com/uploads/1/3/0/7/130739779/8561489.pdf
    • https://kigedor.files.wordpress.com/2020/06/tegajikizenatej.pdf
    • https://wubigixetoso.files.wordpress.com/2020/07/rutegawakepefo.pdf
    • https://mebanebezog.files.wordpress.com/2020/06/zizufovina.pdf
    • https://rotodiduluf.files.wordpress.com/2020/07/tofofogoneromezopowutez.pdf
    • https://zikokiso.files.wordpress.com/2020/07/xupusuzawifawa.pdf
    • https://detixuge.files.wordpress.com/2020/06/bemugemuxoju.pdf
    • https://lililizita.files.wordpress.com/2020/06/17808113253.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3789128943.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdf
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/34629675125.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34456372212.pdf
    • https://cdn.shopify.com/s/files/1/0430/3113/4365/files/napetizevosupik.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_off0000593c.bin
e2e629ae4538fe0440e3e700e817db29a6f555884d7b86e9ca2d4e72fb35637c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x593C 4996 bytes
font_01_sfnt_off00006a42.bin
924aa6a4dbcc3f95557e052ca7c1e403f207a2d1e463c7be0f6865fa30fd808d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A42 9884 bytes

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