Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6b545dcbce4ff09…

MALICIOUS

PDF

15.7 KB Created: 2019-04-30 04:08:48 +01:00 Authoring application: mPDF 5.7
MD5: d48e03ff88fb3985ada258ee03c67b4b SHA-1: a7a015a146e5dbb9c5264210bff34be1c9838a7f SHA-256: c6b545dcbce4ff09bb1760df4edddc37b1bc30538758d79ff3f5cd7c89a5190e
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. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent, likely to distribute further malware or engage in SEO spam. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/9094098092096098/THE-CHAPLET-OF-DIVINE-MERCY-DEVOTION-TO-THE-DIVINE-MERCY-CHAPLET-by-James-Joseph.pdf
    • http://loaminoo.linkpc.net/9094098091098092/Chaplet-of-Divine-Mercy-by-Iesu.pdf
    • http://loaminoo.linkpc.net/9094098093098099/Chaplet-of-Divine-Mercy-EWTN-CD-by-Marians-of-the-Immaculate-Conception.pdf
    • http://loaminoo.linkpc.net/9094098094095096/Chaplet-of-Divine-Mercy-Novena-Stations-of-The-Cross-by-Nancy.pdf
    • http://loaminoo.linkpc.net/9094098094094092/Chaplet-of-Divine-Mery-Sung-by-Still-Waters-and-Friends.pdf
    • http://loaminoo.linkpc.net/2092091099094093/No-Mercy-Drama-High-16-by-L-Divine.pdf
    • http://loaminoo.linkpc.net/9093099097095/Devotion-to-the-Divine-Heart-of-God-the-Father-by-Apostolate-of-the-Divine-Heart.pdf
    • http://loaminoo.linkpc.net/3094091090093090/Mercy-Kill-Mercy-Gunderson-Mystery-2-by-Lori-G-Armstrong.pdf
    • http://loaminoo.linkpc.net/4099093098098090/Starved-Mercy-for-Eating-Disorders-Mercy-For-1-by-Nancy-Alcorn.pdf
    • http://loaminoo.linkpc.net/4092097096092095/Violated-Mercy-for-Sexual-Abuse-Mercy-For-4-by-Nancy-Alcorn.pdf
    • http://loaminoo.linkpc.net/3092090092095093/Traces-of-Mercy-Mercy-Medallion-Trilogy-1-by-Michael-Landon-Jr-.pdf
    • http://loaminoo.linkpc.net/4098099092092093/Mercy-amp-Mayhem-Mercy-Mares-Cozy-Mystery-1-by-Ava-Mallory.pdf
    • http://loaminoo.linkpc.net/7091090095091/Preying-For-Mercy-Mercy-Thompson-1-3-by-Patricia-Briggs.pdf
    • http://loaminoo.linkpc.net/3090095097097099/The-Army-Divine-The-Divine-Brotherhood-2-by-Carol-A-Robi.pdf
    • http://loaminoo.linkpc.net/3099093090096093/Divine-Confidential-Divine-and-Friends-2-by-Jacquelin-Thomas.pdf
    • http://loaminoo.linkpc.net/3099093090095099/Divine-Secrets-Divine-and-Friends-3-by-Jacquelin-Thomas.pdf
    • http://loaminoo.linkpc.net/8097094098090/Beg-For-Mercy-Mercy-Hollings-1-by-Toni-Andrews.pdf
    • http://loaminoo.linkpc.net/8097098096096/Cry-Mercy-Mercy-Hollings-3-by-Toni-Andrews.pdf
    • http://loaminoo.linkpc.net/3093090091098097/A-Divine-Life-The-Divine-Trilogy-2-by-R-E-Hargrave.pdf
    • http://loaminoo.linkpc.net/4090094094098/Beg-For-Mercy-Mercy-3-by-Lucian-Bane.pdf
    • http://loaminoo.linkpc.net/309209009209

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