Malicious PDF — malware analysis report

Static analysis result for SHA-256 77e4bafb442c0768…

MALICIOUS

PDF

13.0 KB Created: 2019-05-01 18:08:20 +01:00 Authoring application: mPDF 5.7
MD5: 5a0e62bf6895c644f2fdecdaffd500fc SHA-1: 1e08bd3535aec1aae4b40f6858f12641fa343031 SHA-256: 77e4bafb442c076845ea54aee3b06aa064b587cd07c5695dd313fe252e1feee8
60 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. These links all point to the same domain, loaminoo.linkpc.net, and appear to be designed to manipulate search engine results or distribute content. While the document body is heavily obfuscated and unreadable, the presence of numerous external links suggests a malicious intent, possibly for SEO spam or as a distribution vector for other malware. No scripts were extracted from this sample.

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/4092090095095092/Jade-The-Law-by-Robert-Flynn.pdf
    • http://loaminoo.linkpc.net/2099092092097/Echoes-of-Glory-by-Robert-Flynn.pdf
    • http://loaminoo.linkpc.net/2099095092091/Wanderer-Springs-A-Novel-by-Robert-Flynn.pdf
    • http://loaminoo.linkpc.net/9090099093094091/The-Complete-Gillian-Flynn-Gone-Girl-Dark-Places-Sharp-Objects-by-Gillian-Flynn.pdf
    • http://loaminoo.linkpc.net/2091092091092094/The-Color-of-Jade-Jade-1-by-Mae-Redding.pdf
    • http://loaminoo.linkpc.net/3095098094099091/Vince-Flynn-Collectors-Edition-2-Separation-of-Power-Executive-Power-and-Memorial-Day-by-Vince-Flynn.pdf
    • http://loaminoo.linkpc.net/2099099092098099/Lust-amp-Fae-Anything-Goes-1-by-Joyee-Flynn.pdf
    • http://loaminoo.linkpc.net/2093094098/The-Grownup-by-Gillian-Flynn.pdf
    • http://loaminoo.linkpc.net/5092091099096/Gone-Girl-by-Gillian-Flynn.pdf
    • http://loaminoo.linkpc.net/3097097091092090/Edric-by-Joyee-Flynn.pdf
    • http://loaminoo.linkpc.net/3099094099098096/The-Grownup-by-Gillian-Flynn.pdf
    • http://loaminoo.linkpc.net/3094090093090093/Gone-Girl-by-Gillian-Flynn.pdf
    • http://loaminoo.linkpc.net/3096091096090092/Still-Coming-by-Joseph-Flynn.pdf
    • http://loaminoo.linkpc.net/1095094095093095/While-You-Slept-by-John-T-Flynn.pdf
    • http://loaminoo.linkpc.net/3095090097095098/Bloodthirsty-by-Flynn-Meaney.pdf
    • http://loaminoo.linkpc.net/3095097093093/Gone-Girl-by-Gillian-Flynn.pdf
    • http://loaminoo.linkpc.net/8096098093090/The-Grownup-by-Gillian-Flynn.pdf
    • http://loaminoo.linkpc.net/9094090092091092/The-Runaway-by-Katie-Flynn.pdf
    • http://loaminoo.linkpc.net/6097090093098/Gone-Girl-by-Gillian-Flynn.pdf
    • http://loaminoo.linkpc.net/1097099092096090/In-the-Red-by-Jade-Gurss.pdf
    • http://loaminoo.linkpc.net/3099094099098096/The-Gr

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