Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4018a9cceaf458…

MALICIOUS

PDF

15.6 KB Created: 2019-04-30 04:30:05 +01:00 Authoring application: mPDF 5.7
MD5: ac20a67b5b98094729cf4e8e5e1b0621 SHA-1: 7a9ae4474124d48d5555b4459ad7f6656339a6cc SHA-256: 7d4018a9cceaf458e2c953a298cabc2908a11dafdf87bea0d5d580877aba0f9e
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified as a link farm. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the primary attack pattern appears to be SEO manipulation or directing users to potentially malicious external content through a dense collection of links. The URLs themselves are not directly malicious but serve as the delivery mechanism for the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/3098095092097095/The-Wicked-Woodleys-Bundle-The-Wicked-Woodleys-1-6-by-Jess-Michaels.pdf
    • http://loaminoo.linkpc.net/2090094096092099/Fascinated-The-Wicked-Woodleys-6-by-Jess-Michaels.pdf
    • http://loaminoo.linkpc.net/3094093094095090/Wicked-Lovely-by-Jess-C-Scott.pdf
    • http://loaminoo.linkpc.net/3095096097096098/Pure-Wicked-Wicked-Lovers-9-5-1001-Dark-Nights-25-by-Shayla-Black.pdf
    • http://loaminoo.linkpc.net/3090099099090090/The-Wicked-Years-Complete-Collection-Wicked-Son-of-a-Witch-A-Lion-Among-Men-and-Out-of-Oz-by-Gregory-Maguire.pdf
    • http://loaminoo.linkpc.net/3095097097090093/Wicked-The-Life-and-Times-of-the-Wicked-Witch-of-the-West-by-Gregory-Maguire.pdf
    • http://loaminoo.linkpc.net/1094094095094/The-Wicked-Wicked-Ladies-in-the-Haunted-House-by-Mary-Chase.pdf
    • http://loaminoo.linkpc.net/1094096097094091/Wicked-Favor-The-Wicked-Horse-Vegas-1-by-Sawyer-Bennett.pdf
    • http://loaminoo.linkpc.net/3099090096090095/Lady-Gone-Wicked-Wicked-Secrets-2-by-Elizabeth-Bright.pdf
    • http://loaminoo.linkpc.net/4095095093092091/Wicked-Lies-Wicked-2-Colony-4-by-Lisa-Jackson.pdf
    • http://loaminoo.linkpc.net/2099095091094092/Every-Witch-Way-But-Wicked-Wicked-Witches-of-the-Midwest-2-by-Amanda-M-Lee.pdf
    • http://loaminoo.linkpc.net/2090091093093092/Wicked-My-Love-Wicked-Little-Secrets-2-by-Susanna-Ives.pdf
    • http://loaminoo.linkpc.net/1094098096097099/Wicked-The-Complete-Series-Wicked-1-4-by-Lily-Graison.pdf
    • http://loaminoo.linkpc.net/3092096097090095/Wicked-Lust-The-Wicked-Horse-2-by-Sawyer-Bennett.pdf
    • http://loaminoo.linkpc.net/1097091091095096/Wicked-Desires-Wicked-Affairs-1-by-Eliza-Lloyd.pdf
    • http://loaminoo.linkpc.net/1093094093/Wicked-Fall-The-Wicked-Horse-1-by-Sawyer-Bennett.pdf
    • http://loaminoo.linkpc.net/3098093097090093/Wicked-Bond-The-Wicked-Horse-5-by-Sawyer-Bennett.pdf
    • http://loaminoo.linkpc.net/4099091099097094/Wicked-2-Legacy-amp-Spellbound-Wicked-3-4-by-Nancy-Holder.pdf
    • http://loaminoo.linkpc.net/3096095094098097/Wicked-Destiny-Wicked-Witches-1-by-L-C-Hibbett.pdf
    • http://loaminoo.linkpc.net/3095098092093093/Wicked-A-Wicked-Trilogy-1-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4095095093092091/Wicked-Lies-Wicked-2-Colony-4-by-

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