Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1ee893fe51d3116…

MALICIOUS

PDF

17.0 KB Created: 2019-05-02 00:44:23 +01:00 Authoring application: mPDF 5.7
MD5: 23a0b2b9cea7204519696f91af8ae4a3 SHA-1: a4a80868a43fa213f937e34cb4b4bf975bd2a23d SHA-256: b1ee893fe51d3116eeadd806865eeac5f0b4150fed100fbc1dde234cef45301f
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. While the specific URLs extracted are currently marked as benign, the heuristic 'PDF_SEO_LINK_FARM' indicates a pattern commonly used to manipulate search engine results or redirect users to malicious sites. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, limiting further analysis of direct payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/3099098092095094/Drowning-in-Fire-by-Craig-S-Womack.pdf
    • http://loaminoo.linkpc.net/7090091093096094/Drowning-in-Fire-Nerita-Torlan-Trilogy-2-by-Arielle-Caldwell.pdf
    • http://loaminoo.linkpc.net/3099091092096092/The-Drowning-The-Drowning-1-by-Rachel-Ward.pdf
    • http://loaminoo.linkpc.net/8096093091092/Novels-by-Chris-D-lacey-The-Fire-Eternal-Fire-Star-the-Fire-Within-Icefire-the-Last-Dragon-Chronicles-Fire-World-by-Books-LLC.pdf
    • http://loaminoo.linkpc.net/4097094096092/The-Last-Dragon-Chronicles-Complete-Set-Books-1-5-The-Fire-Within-Icefire-Fire-Star-The-Fire-Eternal-and-Dark-Fire-5-Book-Set-by-Chris-d-39-Lacey.pdf
    • http://loaminoo.linkpc.net/1095095098097091/Ambient-by-Jack-Womack.pdf
    • http://loaminoo.linkpc.net/5090090098093093/The-Other-Book-by-Philip-Womack.pdf
    • http://loaminoo.linkpc.net/7092096/The-Memory-Painter-by-Gwendolyn-Womack.pdf
    • http://loaminoo.linkpc.net/4091098095093099/The-Best-of-Spanish-Steampunk-by-James-Womack.pdf
    • http://loaminoo.linkpc.net/1095098095097/Zapata-and-the-Mexican-Revolution-by-John-Womack.pdf
    • http://loaminoo.linkpc.net/1090093093098095096/Get-Momentum-How-to-Start-When-You-re-Stuck-by-Jason-W-Womack.pdf
    • http://loaminoo.linkpc.net/4094099092097/Random-Acts-of-Senseless-Violence-by-Jack-Womack.pdf
    • http://loaminoo.linkpc.net/4093091098093/Way-Past-Dead-Harry-James-Denton-3-by-Steven-Womack.pdf
    • http://loaminoo.linkpc.net/4092099096093/Dirty-Money-Harry-James-Denton-6-by-Steven-Womack.pdf
    • http://loaminoo.linkpc.net/4093099099093094/Afrofuturism-The-World-of-Black-Sci-Fi-and-Fantasy-Culture-by-Ytasha-L-Womack.pdf
    • http://loaminoo.linkpc.net/1096094098095/Dead-Folks-Blues-Harry-James-Denton-1-by-Steven-Womack.pdf
    • http://loaminoo.linkpc.net/3093097098094097/The-P-Craig-Russell-Library-of-Opera-Adaptations-Vol-1-The-Magic-Flute-by-P-Craig-Russell.pdf
    • http://loaminoo.linkpc.net/4094091094098090/Cheese-Chronicles-The-True-Story-of-a-Rock-n-Roll-Band-You-Never-Heard-of-by-Tommy-Womack.pdf
    • http://loaminoo.linkpc.net/1099093095093092/Saving-Fish-from-Drowning-by-Amy-Tan.pdf
    • http://loaminoo.linkpc.net/1093091098093093/Drowning-Anna-by-Sue-Mayfield.pdf
    • http://loaminoo.linkpc.net/7092096/The-Memory-Painter-by-Gwend

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