Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab19c5a7b31fe34…

MALICIOUS

PDF

33.4 KB Created: 2020-05-30 15:15:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95a7c991ab8af36467a78b7e84cf9c3c SHA-1: ac278b78cb5da8a630d81874c1f6ca07fd83bd80 SHA-256: dab19c5a7b31fe342a38c4ab75c72f4599ddeb52060bc7e0a2b63ea8f5b5fc7d
62 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a heuristic firing for a 'PDF_SEO_LINK_FARM', indicating a large number of external links. The document body contains multiple URLs, which are likely part of a link farm designed to lure users to potentially malicious sites. No scripts were extracted from this sample, but the presence of numerous external links suggests a phishing or malware distribution attempt.

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://onboardaccel.com/uploads/1/3/0/7/130740080/130740080.html#ac+orleans+tours+fr+webmail
    • http://hostmaster.alaskarvadventures.com/uploads/1/3/0/5/130544547/72a68dba43cd070.pdf
    • http://bmbonlinestore.com/uploads/1/3/0/3/130313166/0c0cbddaf1a8.pdf
    • http://mckenziegrant.com/uploads/1/3/0/5/130589209/jawatasogowori-xasidubire-zazizexu-dotir.pdf
    • http://vintagesouthernsass.shop/uploads/1/3/0/4/130476144/2527653.pdf
    • http://katiejanebeauty.co.uk/uploads/1/3/1/3/131398564/ridamuxepogeti.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_off00004f5e.bin
6317616e130e62f21d1e8ddbac58a8e2b312c6d49ab2240d3d1a2849f0ab2e2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F5E 13908 bytes

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