Malicious PDF — malware analysis report

Static analysis result for SHA-256 f00716c48000d700…

MALICIOUS

PDF

39.0 KB Created: 2020-03-28 06:13:47 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 71314d12d439e1b5204716f429f2981b SHA-1: 1275454736a186aaca7f08c291450e6d5d3c149a SHA-256: f00716c48000d7007bdc79ba6ecaf7dc084fe308b54b253c8d96ce0256cc6e8b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a mass of external links, many pointing to PDF files on various domains, suggesting a link farm or redirection scheme. The presence of a 'Visible LOLBin command execution instruction' heuristic indicates that the document likely contains embedded commands or instructions to execute system tools. The primary URL, 'http://headblocks.org/uploads/1/3/0/2/130289211/130289211.html#how+to+restart+jenkins+in+docker', and the numerous other embedded URLs suggest a lure to external content, potentially for phishing or malware delivery.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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://headblocks.org/uploads/1/3/0/2/130289211/130289211.html#how+to+restart+jenkins+in+docker
    • http://second-childhood.com/uploads/1/3/0/3/130313241/zetubuvurav_ragewo.pdf
    • http://senalista.com/uploads/1/3/0/7/130739564/a9c9882.pdf
    • http://www.haileysboutiqueonline.com/uploads/1/3/0/6/130604768/2163754.pdf
    • http://velascopaintingllc.com/uploads/1/3/0/5/130590461/7458193.pdf
    • http://lykesfloridaolives.com/uploads/1/3/0/5/130551046/191b9a2b034.pdf
    • http://www.ebrugezgindesign.com/uploads/1/3/0/8/130874541/dabebedoxineb-budegilova-punozojasezof.pdf
    • http://altandiamonds.com/uploads/1/3/0/2/130274028/925b23.pdf
    • http://newperspectivemedical.com/uploads/1/3/0/5/130544078/d1f387861c35.pdf
    • http://callisto.ankabhi.org/uploads/1/3/0/5/130590763/mejivazifopirabomoxu.pdf
    • http://mx.core4finance.com/uploads/1/3/0/5/130538992/sonapadupe.pdf
    • http://blkafrodite.space/uploads/1/3/0/7/130740051/d16689a55dc8a.pdf
    • http://michellelking.net/uploads/1/3/0/4/130489228/sigexasikij-wusolopeze-zomij-kewogevowi.pdf
    • http://energetic-medicine.org/uploads/1/3/0/6/130621916/vadotidoziwale.pdf
    • http://ivleaguewellnesslounge.com/uploads/1/3/0/5/130551266/dc597.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_off00006bb6.bin
c0d8e77d56d414730d40a28770c4f5a22575764bed085883676d61e09ec46cfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB6 9292 bytes

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