Malicious PDF — malware analysis report

Static analysis result for SHA-256 990944d1e4a94897…

MALICIOUS

PDF

36.7 KB Created: 2020-05-15 05:41:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75498d377e0760a4072e157ff6c3e656 SHA-1: 153b85b5f41acb330c8dce97c8477edc33ece607 SHA-256: 990944d1e4a9489790efb47cc4adb94eaca5e217d3069ce20ad4098cffd0acf5
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The document body contains garbled text along with a few URLs, reinforcing the link-based nature of the attack. No scripts were extracted from this sample.

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://exhilaratingmemories.com/uploads/1/3/0/6/130604113/130604113.html#3d+animation+video+software+free
    • http://scrmedical.com/uploads/1/3/0/2/130289375/7829681.pdf
    • http://life-in-art.com/uploads/1/3/1/6/131637558/zupoketutibefew.pdf
    • http://christianambulancenetwork.com/uploads/1/3/1/3/131398100/lodupageneru_zebibepekag.pdf
    • http://oneactdaily.com/uploads/1/3/1/4/131453343/ragupumiti.pdf
    • http://wisdomblvd.com/uploads/1/3/0/8/130874347/zususelivudagibojup.pdf
    • http://isomadx.com/uploads/1/3/1/3/131380087/7479767.pdf
    • http://lawrenceblackman.online/uploads/1/3/0/6/130639634/zalozuwigivurebu.pdf
    • http://pedalandpaddlemedina.com/uploads/1/3/1/1/131163623/7515233.pdf
    • http://career-access.org/uploads/1/3/1/6/131606640/5613a1.pdf
    • http://onecityhistoricalfoundation.com/uploads/1/3/0/3/130323232/xisunuva.pdf
    • http://gkgtraining.com/uploads/1/3/1/6/131637300/dd95b.pdf
    • http://creolejamaica.com/uploads/1/3/1/0/131070458/167ec910.pdf
    • http://beachbarre.net/uploads/1/3/0/2/130289476/ganotedilatuvipux.pdf
    • http://ihelpcarpetcleaners.com/uploads/1/3/0/2/130289448/dogoxo.pdf
    • http://sedonacrystals.us/uploads/1/3/0/3/130313289/tuzitebokewikemoju.pdf
    • http://tangoolistico.com/uploads/1/3/0/3/130313158/7e76f9c58927.pdf
    • http://gingerspringerphotography.com/uploads/1/3/0/2/130287502/mijuzinagisima_wemogoz_bukigo_vupovewa.pdf
    • http://qntmntl.com/uploads/1/3/0/6/130620971/sogasapegumu_sewuwarajo_ruwok_babawukof.pdf
    • http://scollina.com/uploads/1/3/1/0/131070590/zirabevisinas.pdf
    • http://lancerrobotics.org/uploads/1/3/0/6/130621293/1441641.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_off000063ad.bin
45153f5181611c989328a9930311b8814df4773b2e6b170065137e78eaa63709		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63AD 10340 bytes

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