Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e5ee98f3049a77e…

MALICIOUS

PDF

45.4 KB Created: 2020-04-18 08:50:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a501b64e6fb45a1514c607fcc91a0c98 SHA-1: ac35b3c1c9c93c75d85b04dfd104909a4a26717b SHA-256: 1e5ee98f3049a77e26231f0fb3ad1338e48a46c9d566e0e237c8c9e5e6030568
70 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, a technique often used for SEO poisoning or to host malicious content. One specific heuristic identified a 'PDF_SEO_LINK_FARM' with multiple links pointing to domains like verlume.com and atpbodywork.com. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'marathi calligraphy software free full version'. This suggests a social engineering attack aiming to direct users to potentially malicious download pages.

Heuristics 4

  • 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
  • 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://scruffrat.net/uploads/1/3/0/5/130551004/130551004.html#marathi+calligraphy+software+free++full+version
    • http://verlume.com/uploads/1/3/0/8/130813846/mazegozemetiweseku.pdf
    • http://battagliaresearchgroup.org/uploads/1/3/0/7/130738759/c74f42.pdf
    • http://atpbodywork.com/uploads/1/3/0/6/130621963/9082625.pdf
    • http://makeuphvney.com/uploads/1/3/0/5/130550848/3325885.pdf
    • http://wdavidpower.com/uploads/1/3/1/3/131398164/0eedaca39.pdf
    • http://atpbodywork.com/uploads/1/3/0/6/130621963/9082
    • 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_off000072c0.bin
5d924a5e7013d80481ca86463c8c0d510e96445d16e114857f6f73b401d95671		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C0 8640 bytes
font_01_sfnt_off000093f7.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93F7 16204 bytes

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