Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfb669ba8977615f…

MALICIOUS

PDF

13.6 KB Created: 2019-04-30 02:52:44 +01:00 Authoring application: mPDF 5.7
MD5: 83e79df509452de2555e116d71e3ab81 SHA-1: 695b34a2ec9d4a01b0ee820f18ecdcc727559edc SHA-256: bfb669ba8977615f5a4b69a59b070023c289754c661840a48370e43d7345a08e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a 'PDF_SEO_LINK_FARM' heuristic. These URLs all point to the same domain, loaminoo.linkpc.net, and appear to be designed to drive traffic to external content. No scripts were extracted from this sample. The primary attack pattern observed is the distribution of a link farm within a PDF document.

Heuristics 2

  • 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.
  • 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://loaminoo.linkpc.net/2092093093096091/The-Short-Stories-of-Anton-Pavlovich-Chekhov-vol-1-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/1090094098099095091/Plays-By-Anton-Chekhov--Second-Series-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/3096096095091091/Short-Stories-by-Anton-Chekhov-1-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/1090094099090091094/The-Best-Short-Stories-of-Anton-Chekhov-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/5098099092097097/Young-Chekhov-Platonov-Ivanov-The-Seagull-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/5091091093092093/The-Undiscovered-Chekhov-Forty-Three-New-Stories-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/3094093097090091/The-Essential-Tales-of-Chekhov-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/4093090097091096/The-Works-of-Anton-Checkov-100-stories-and-plays-with-an-active-table-of-contents-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/6098097096092099/Champagne-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/4099094097091095/Kashtanka-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/1090096098094091096/The-Sea-Gull-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/1090094099090090097/Stories-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/4093099095090098/The-Bear-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/2090099098096098/The-Story-of-a-Nobody-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/2096094096095098/In-the-Ravine-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/9099096090095/Ward-No-6-and-Other-Stories-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/3098097098096/The-Cherry-Orchard-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/2094090099090092/Difficult-People-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/5098096090098092/The-Cherry-Orchard-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/6095098098098091/The-Fiancee-and-Other-Stories-by-Anton-Chekhov.pdf
    • http://loaminoo.linkpc.net/4099094097091095/Kashtanka-by-An

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