Malicious PDF — malware analysis report

Static analysis result for SHA-256 365fd9da48ff9386…

MALICIOUS

PDF

46.0 KB Created: 2020-03-21 01:39:14 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 53fab0887d53570b1e5ac17ccc61d623 SHA-1: 097679d9f7247e624bfad931c995b95cbad3db80 SHA-256: 365fd9da48ff938620e8fc802963d30f74c5146b9732a0b5a1bf9ef9ca1dbe04
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The document body, though heavily obfuscated, contains a URL that appears to be part of this scheme. The primary intent seems to be directing users to a network of external sites, potentially for SEO manipulation or to serve as a distribution point for further malicious activity.

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://smilehearthk.com/uploads/1/3/0/6/130639616/130639616.html#wikipedia+enfermedades+del+aparato+digestivo
    • http://rkzn.co/uploads/1/3/0/8/130814014/8469273.pdf
    • http://saigonapartmentcenter.com/uploads/1/3/0/4/130478772/914dc9b.pdf
    • http://likessaving.com/uploads/1/3/0/2/130289587/ae87df04a033d1c.pdf
    • http://groenrang.com/uploads/1/3/0/9/130969408/c8491d84e.pdf
    • http://thetavistockgrp.com/uploads/1/3/0/8/130815351/8949bb466.pdf
    • http://northcotswolds.com/uploads/1/3/0/2/130270847/7dcdc8611a.pdf
    • http://mylocstudio.com/uploads/1/3/0/5/130543366/puvememarep.pdf
    • http://sunrisefishcompany.com/uploads/1/3/0/6/130605380/781b3bdd.pdf
    • http://soulfeastco.com/uploads/1/3/0/6/130621947/rewukixetu.pdf
    • http://nandamay.com/uploads/1/3/0/6/130603793/bilenakuxopumew.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c20.bin
fca90897e98fa5376c421ce8baeef469e864f45419308599b26be36d19ad88c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C20 8796 bytes
font_01_sfnt_off00008c3c.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3C 2652 bytes
font_02_sfnt_off000095a3.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95A3 16036 bytes

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