Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbc12e43b597b770…

MALICIOUS

PDF

40.5 KB Created: 2020-04-07 04:28:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 89bd465e9985f1638bc6663e4ab0d388 SHA-1: 5a97061eb48509631e8b5ba06b473037c1bacbcf SHA-256: cbc12e43b597b77017e6fc87f9ab241bf46a3cd8ed7706406148b8811e60d1d8
62 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to a heuristic firing indicating a link farm of external PDF links. The document body contains a URL that is part of this link farm. The primary attack pattern involves directing users to a large number of external URLs, likely for phishing or malware distribution. No scripts were extracted, limiting the ability to determine specific payload delivery mechanisms.

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://degaband.org/uploads/1/3/0/8/130874382/130874382.html#estructura+de+lewis+para+el+hno3
    • http://creaturetree.com/uploads/1/3/1/1/131164291/jobelivafu.pdf
    • http://cdharrispllc.com/uploads/1/3/0/8/130873771/nafola_jajuzeladolo.pdf
    • http://theglitterpixie.com/uploads/1/3/0/8/130873946/357ea1.pdf
    • http://invaluableman.com/uploads/1/3/1/4/131455463/dd9b258f8aa57.pdf
    • http://leilajadelevi.com/uploads/1/3/1/4/131484467/rumef.pdf
    • http://juneausquared.com/uploads/1/3/1/3/131379168/2c0c416e2c9.pdf
    • http://psychologuechatillon92.com/uploads/1/3/1/4/131453837/3b2f4d5546.pdf
    • http://5starspamassage.com/uploads/1/3/0/2/130272266/3810132.pdf
    • http://firstimpressionautobx.com/uploads/1/3/0/4/130475990/6200776.pdf
    • http://mytgob.com/uploads/1/3/1/4/131453782/373a1d2fe5a.pdf
    • http://clclaredo.org/uploads/1/3/1/3/131398143/4264153.pdf
    • http://princessinthemirror.net/uploads/1/3/0/6/130603997/sugumi.pdf
    • http://powerhousehoops.net/uploads/1/3/0/7/130775244/ca96f4aa1.pdf
    • http://complementarybuddhism.com/uploads/1/3/0/9/130969406/6069761.pdf
    • http://pinnaclehomerepair.net/uploads/1/3/1/0/131071210/xovogosefatugod.pdf
    • http://5starspamassage.com/uploads/1/3/0/2/130272266/3810
    • 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_off00007300.bin
7978824602a9ee250914791ae8085fb0507447fd78cce5f6b8d33e95fbff8815
pdf-font-stream PDF embedded font (sfnt) at offset 0x7300 9416 bytes