Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bc31225aab42e64…

MALICIOUS

PDF

35.9 KB Created: 2020-04-11 07:46:45 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3b37d5a945cc79ab85a0338d3482dcdf SHA-1: fa567e342283d72bd67790f04a5114578a9a2f9c SHA-256: 4bc31225aab42e645379a73cc7d3ea54c7e341035de9e26a81de760fd5333ac5
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO spam or to distribute malicious content. The document body mentions 'Strelok ballistic calculator for iphone free', suggesting a lure to a potentially malicious website. The embedded URLs point to various domains, indicating a link farm or a distribution network. No scripts were extracted, limiting the analysis of direct payload execution.

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://ndchair.com/uploads/1/3/0/9/130969331/130969331.html#strelok+ballistic+calculator+for+iphone+free
    • http://bluestrikeenvironmental.net/uploads/1/3/1/4/131454500/940026.pdf
    • http://mit-uk.com/uploads/1/3/0/5/130551839/d13cf.pdf
    • http://djunah.band/uploads/1/3/1/3/131379732/f36c9ae8e852da.pdf
    • http://morningrosehouston.com/uploads/1/3/1/4/131414561/7686357.pdf
    • http://hendrix-painting.com/uploads/1/3/1/3/131379899/xizarimu_tesokulawur_zujarav_jovimubejozixor.pdf
    • http://gardencityelementaryschool.com/uploads/1/3/0/9/130969475/jaluribanopes.pdf
    • http://beawesomeinc.net/uploads/1/3/0/2/130271113/tupuratizux-barokewobava.pdf
    • http://gi4technology.com/uploads/1/3/0/2/130289461/kilapufelepo_xejuwej_pemobibubupa.pdf
    • http://moneylender.ie/uploads/1/3/0/7/130740387/dozekodoruwi.pdf
    • http://nvclosedeals.com/uploads/1/3/0/6/130604466/delezonupevisur-wunafosizibimaz-xosopube-kukalepipinuv.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_off000064fe.bin
25f8e94bf2e1036335126f2ddff8d6ee5f0a0fc5babf39344ffd1c4757ee8cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64FE 7856 bytes

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