Malicious PDF — malware analysis report

Static analysis result for SHA-256 44f1cd9f27430240…

MALICIOUS

PDF

39.6 KB Created: 2020-04-04 14:43:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 71805737b8c38ce1aa44c1f43925c399 SHA-1: 20d0826bc3ac1ee82879187172fade048077d62c SHA-256: 44f1cd9f274302402682fe442dab1441b717a591f57c6dbc9436c047bca391b2
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are hosted on domains that appear to be part of a link farm. The document body text, though heavily obfuscated, contains the string 'Comando update sql developer', suggesting a lure to trick users into visiting these sites. The primary attack pattern involves directing users to potentially malicious URLs, likely for phishing or malware distribution.

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://accelerationgateway.com/uploads/1/3/0/3/130379651/130379651.html#comando+update+sql+developer
    • http://robynwbernstein.com/uploads/1/3/0/2/130273944/5256959.pdf
    • http://medisinanatural.org/uploads/1/3/0/4/130435941/toratefanisunexeg.pdf
    • http://mysweatshops.com/uploads/1/3/0/6/130604011/6ef00645.pdf
    • http://urbanflairoutfitters.org/uploads/1/3/0/7/130738911/0c60a78.pdf
    • http://noslipgrip.net/uploads/1/3/0/5/130589238/d203b2728cfa1.pdf
    • http://softlaunchcity.com/uploads/1/3/0/6/130639443/gesibaxisegexo.pdf
    • http://teasonline.com/uploads/1/3/1/0/131071286/0bfb7aab6f45075.pdf
    • http://muevetefacil.com/uploads/1/3/1/3/131380539/b01e8b9978e.pdf
    • http://kproyhtiot.net/uploads/1/3/0/5/130550956/2f4a2.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_off00006d4c.bin
a209ae50fb3b3cb8e96befd3d2dcda42b153fec7782f8d2cc215664f26633cc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4C 9672 bytes

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