Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff301727108057ab…

MALICIOUS

PDF

30.2 KB Created: 2020-06-04 02:15:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad639e8885d579d0a07aee22cc4f2b09 SHA-1: ca7031488771c39079a8e4f965049f07aa32c4e7 SHA-256: ff301727108057abbceb22dd1ff0c011566d8d18ecaf940baee4dff996dc1ef2
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though heavily obfuscated, contains text related to a 'Flinn lab safety contract' and includes URLs that are likely part of a link farm. The PDF_SEO_LINK_FARM heuristic confirms the presence of a mass external PDF link farm, indicating a malicious intent to distribute links to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://progressivecarehomes.com/uploads/1/3/1/4/131407625/131407625.html#flinn+lab+safety+contract
    • http://redteamtraining.net/uploads/1/3/0/6/130604903/niketelafofevalu.pdf
    • http://ns1.macrotopia.com/uploads/1/3/1/6/131637279/9699086.pdf
    • http://fliteclub.org/uploads/1/3/0/6/130620660/8290112.pdf
    • http://luiginyc.com/uploads/1/3/0/7/130775443/xinotasumog.pdf
    • http://jbandersenstudio.com/uploads/1/3/0/7/130776861/a5f3c5ae8156ffc.pdf
    • http://core500.com/uploads/1/3/0/8/130874134/1d9dd1acc3bb0ca.pdf
    • http://webmail.thecbhsa.org/uploads/1/3/0/7/130740212/niweka.pdf
    • http://mta-sts.mail.suzette-brown.com/uploads/1/3/1/3/131379555/majon.pdf
    • http://sortedproductions.tv/uploads/1/3/1/1/131164171/1985168.pdf
    • http://progressivecarehomes.com/uploads/1/3/1/4/131407625/terms.html
    • http://progressivecarehomes.com/uploads/1/3/1/4/131407625/dmca.html
    • http://progressivecarehomes.com/uploads/1/3/1/4/131407625/policy.html
    • https://vagiseni.files.wordpress.com/2020/06/21764284617.pdf
    • https://rekenakimo.files.wordpress.com/2020/06/63499601793.pdf
    • https://zubugoko.files.wordpress.com/2020/06/buzuzew.pdf
    • https://tepaxazif.files.wordpress.com/2020/06/79701073371.pdf
    • https://nonegek.files.wordpress.com/2020/06/lodanotogiregafemumebig.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_off00004ebe.bin
eba4a6759582ab3962dc5ea7a03dc35131d449bec03eefd83b2650abbc96ed9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EBE 9048 bytes

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