Malicious PDF — malware analysis report

Static analysis result for SHA-256 49b9e093abd5f8c1…

MALICIOUS

PDF

15.0 KB Created: 2019-04-30 04:54:10 +01:00 Authoring application: mPDF 5.7
MD5: 4b452a86212498c594b785d463b9a016 SHA-1: cdd8ebdc17c2a7d3b3ad5b2fd1840bfc911a54b8 SHA-256: 49b9e093abd5f8c1162ec4e59dc4d6d42dde7d0aa39e651944525e3aeae5ee5f
60 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified as a link farm. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent, possibly for SEO manipulation or to redirect users to malicious content. No scripts were extracted from this sample. The attack pattern is inferred from the link farm heuristic.

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/4096090093090091/Hold-2-Hold-Trilogy-2-by-Jayne-Blue.pdf
    • http://loaminoo.linkpc.net/4096090093090094/Hold-1-Hold-Trilogy-1-by-Jayne-Blue.pdf
    • http://loaminoo.linkpc.net/2098094096097092/Hold-on-Tight-Hold-Trilogy-3-by-Stephanie-Tyler.pdf
    • http://loaminoo.linkpc.net/3094098096092096/Hold-Hold-amp-Hide-1-by-Marilyn-Grey.pdf
    • http://loaminoo.linkpc.net/3090096094096098/Hold-Hold-1-by-Claire-Kent.pdf
    • http://loaminoo.linkpc.net/4099097093092097/All-We-Hold-Dear-Victorian-Trilogy-2-by-Kathryn-Lynn-Davis.pdf
    • http://loaminoo.linkpc.net/1091099093093097092/Harrington-on-Hold-em-Strategie-pro-no-limit-hold-em-turnaje-D-l-I-Strategie-hry-by-Dan-Harrington.pdf
    • http://loaminoo.linkpc.net/1094093096093092/Phil-Gordon-s-Little-Blue-Book-More-Lessons-and-Hand-Analysis-in-No-Limit-Texas-Hold-em-by-Phil-Gordon.pdf
    • http://loaminoo.linkpc.net/4096090092091098/Ride-Trilogy-Ride-Trilogy-1-by-Jayne-Blue.pdf
    • http://loaminoo.linkpc.net/1097090098094095/A-Hold-on-Me-by-Pat-Esden.pdf
    • http://loaminoo.linkpc.net/4094093096098095/Hold-on-You-by-M-S-Brannon.pdf
    • http://loaminoo.linkpc.net/1091099098096099/To-Have-and-To-Hold-by-Trae-Stratton.pdf
    • http://loaminoo.linkpc.net/2094092095090096/Love-on-Hold-by-Mia-Miller.pdf
    • http://loaminoo.linkpc.net/2090096093095093/Hold-Your-Own-by-Kate-Tempest.pdf
    • http://loaminoo.linkpc.net/2098097095094091/To-Have-Hold-and-Let-Go-by-Andrew-Grey.pdf
    • http://loaminoo.linkpc.net/3095092096097094/One-to-Protect-One-to-Hold-3-by-Tia-Louise.pdf
    • http://loaminoo.linkpc.net/3093092098091093/Let-Me-Hold-You-by-Melanie-Schuster.pdf
    • http://loaminoo.linkpc.net/3094095094095097/He-s-Got-a-Hold-on-Me-by-Dalanna-Anitra.pdf
    • http://loaminoo.linkpc.net/7098090092096090/One-to-Leave-One-to-Hold-5-by-Tia-Louise.pdf
    • http://loaminoo.linkpc.net/1094095099099094/Hold-Me-Again-by-Rory-Church.pdf

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