Malicious PDF — malware analysis report

Static analysis result for SHA-256 9354698a9033daa5…

MALICIOUS

PDF

37.0 KB Created: 2020-03-09 04:41:43 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 88de724a559c8a1597dcbe0d5be1fd2a SHA-1: 1e6d069b055ea0941a0dee48338215eabcf64f74 SHA-256: 9354698a9033daa5cc9f76bd23dfed6f68d146607627be5485ab794a45c58982
70 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used to create SEO link farms or to redirect users to malicious sites. The document body, though heavily obfuscated, contains references to a quiz and a download button lure, suggesting a social engineering pretext. The primary heuristic indicates a mass external PDF link farm, with multiple URLs pointing to potentially malicious content. No scripts were extracted from this sample.

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://annotalegal.com/uploads/1/3/0/6/130605112/130605112.html#affairscloud+weekly+quiz+dec+2019
    • http://www.limpezaposobraslf.com/uploads/1/3/0/2/130287988/6a992960a2ae.pdf
    • http://ndjapanese.com/uploads/1/3/0/3/130323290/6377968.pdf
    • http://oa100.org/uploads/1/3/0/5/130590353/ripudu.pdf
    • http://www.fundacionsionaespiritu.com/uploads/1/3/0/7/130739332/8e6d76f13d6.pdf
    • http://www.jncustomapparel.com/uploads/1/3/0/4/130435574/jezatugop.pdf
    • http://viollettauccellineri.com/uploads/1/3/0/7/130739002/togud.pdf
    • http://remote.bdhhs.org/uploads/1/3/0/6/130622095/kasotepef.pdf
    • http://bud-spencer.org/uploads/1/3/0/6/130604769/jagamevovij-gogidivujufagi-korexomedu.pdf
    • http://runningbear1.com/uploads/1/3/0/5/130550762/d8c63f9f542d1f.pdf
    • http://www.mytamaragarcia.com/uploads/1/3/0/9/130969614/8214060.pdf
    • http://wilcoxlighting.com/uploads/1/3/0/5/130539676/lulik_fanemigut.pdf
    • http://everydaycreative.space/uploads/1/3/0/4/130476429/forobapugon.pdf
    • http://osakahoumausa.com/uploads/1/3/0/7/130776699/b01d71e9e56c.pdf
    • http://wealthymarketplace.com/uploads/1/3/0/3/130323295/jazig.pdf
    • http://saltybutthurt.com/uploads/1/3/0/6/130603918/kibifutozututagini.pdf
    • http://mx.topnotchdjservice.com/uploads/1/3/0/2/130272414/df79e.pdf
    • http://misdoc.com/uploads/1/3/0/6/130604434/xuramokiverugi.pdf
    • http://cincinnatiseniorconnection.com/uploads/1/3/0/2/130287428/3fa9c3ae05ebd4.pdf
    • http://ryanmittencreative.com.au/uploads/1/3/0/5/130590368/909122.pdf
    • http://randynazarian.com/uploads/1/3/0/6/130639936/f197a75c8.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_off0000684e.bin
44227a13909ddc0d2c0f7c57a5ff93eb57c4a9f4f690a73f2e92bf433021891a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x684E 7768 bytes

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