Malicious PDF — malware analysis report

Static analysis result for SHA-256 244484a0896d015b…

MALICIOUS

PDF

31.1 KB Created: 2020-03-29 15:06:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8eb69765d28117d251e99225981e99bd SHA-1: ce7d647ba9c14c8629abadc6d1a137ba3cfd2691 SHA-256: 244484a0896d015b4e8f088cf95b4362fd4676ed61cdf6a17dd097eb580e6b53
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, each hosting a PDF file with a numeric or book-slug-like filename. The document body, though heavily obfuscated, contains references to these URLs. This suggests a link farm or SEO poisoning attack, potentially used to distribute malicious content or manipulate search engine results.

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://bodyworkbybarb.com/uploads/1/3/0/5/130541445/130541445.html#atlas+sexto+grado+issuu
    • http://handymantooele.com/uploads/1/3/0/6/130639629/kiwakoxonob.pdf
    • http://littlegastronomer.com/uploads/1/3/0/5/130543050/zexoretoxuxop-devurobakif-widiwofi.pdf
    • http://jenrinehart.com/uploads/1/3/0/5/130544872/xiniwega_sodutir_najikowumepaba_vugasimam.pdf
    • http://44paige.com/uploads/1/3/1/0/131070357/ab73f73f2.pdf
    • http://mywoodshop.co/uploads/1/3/0/9/130969237/fosita.pdf
    • http://ecluxuryhomes.com/uploads/1/3/0/3/130312951/539601.pdf
    • http://hillview.estate/uploads/1/3/1/1/131163984/2085879.pdf
    • http://theag3ncy.com/uploads/1/3/0/4/130435659/govixize-sadenob-midevamagibelol.pdf
    • http://ontariohomecaresolutions.com/uploads/1/3/0/8/130873853/9179212.pdf
    • http://cruzetronics.com/uploads/1/3/0/4/130476389/2180446.pdf
    • http://the9lab.com/uploads/1/3/0/5/130544448/nivetumozivite.pdf
    • http://floresstrawing.com/uploads/1/3/0/7/130740513/ac50e8856355.pdf
    • http://imaginethat-3dprinting.net/uploads/1/3/0/6/130604858/rogixuximufizatolixo.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_off000053dd.bin
d9135f5540871cf93d78b9fe22b23345dd2702b44b3de133a2ef14a7f10547dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53DD 7440 bytes

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