MALICIOUS — rujut.pdf
MALICIOUS — rujut.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
a55e55b9917b94a677c68781aeef0ea8e762370124cd89fbd58ac03cb600dbcb - SHA-1:
e67a5071fccf7092741e2796c6568852d513d4a2 - MD5:
211c56333e682f097e2f7a8573bebeae - ssdeep:
768:0gGzpDDAAxIAXm9brymlcSPHHazSFBLEoq6p+aTWtz0XARQKDM:BGFnD6AXUmmOMH6aBNcaTWKUQKDM - TLSH:
T11C33AEF3519BDD8A7BC6FB037DFA14186142DA8C2032866459C8BB7CC87C67DAE11650 - Submitted as: rujut.pdf
- File type: pdf · Size: 48465 bytes
- Verdict: malicious (72/100)
Detections (3 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Trojan.Script.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 72/100 is the fusion of 6 weighted signals:
- Contacted 17 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/5f83e440-a476-4cba-ac8b-ff8a8db43b2c/gigax.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=unveiling+riven+mods+guide, http://zifotev.courtneykanigphotography.com/uploads/1/3/0/8/130874359/joxikumin-kasananu-davalotisuv-tanosurifigot.pdf, http://kolen.danglesbydeb.com/uploads/1/3/0/8/130873867/megovevusef.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Extracted generic config (10 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9671 behavior events · 0 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- desktop-hsgcbep
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- ntp.ubuntu.com
- 250.255.255.239.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\b0659dfb41c7fa533dd512b86551a262.png -
a6cd418f61e1991531d1199d8fdb856a9148890368c24e37c07cbddb973fe835 - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
453fb0123a848c5391d4c4aa507a90f76817122d6a21e374207c5bc84dafeca2 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=unveiling+riven+mods+guide
- http://zifotev.courtneykanigphotography.com/uploads/1/3/0/8/130874359/joxikumin-kasananu-davalotisuv-tanosurifigot.pdf
- http://kolen.danglesbydeb.com/uploads/1/3/0/8/130873867/megovevusef.pdf
- http://files.3-display.com/uploads/1/3/1/3/131383917/nirilumirakapikif.pdf
- http://files.floridamasonrycouncil.org/uploads/1/3/1/8/131856288/2944823.pdf
- https://uploads.strikinglycdn.com/files/5f83e440-a476-4cba-ac8b-ff8a8db43b2c/gigax.pdf
- http://files.kellymichellebaker.com/uploads/1/3/0/9/130969831/6229142.pdf
- http://xurowe.gypsydenisse.com/uploads/1/3/0/7/130776407/1071125.pdf
- http://kunefo.guestchefdetroit.com/uploads/1/3/1/4/131453247/685c59e5cedbd5.pdf
- http://vevaget.sheilasbeautystarsalon.com/uploads/1/3/1/1/131163729/1819827.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787751324&P2=404&P3=2&P4=IwZy6pKOdf472yrEsQxYgqKWXWD8iFfFmzWeufTqlFXvKuTQPQC1Lw44ET6Z6SfrD0Df1L3vTY9xYhEkvif1dQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787751381&P2=404&P3=2&P4=UpBm6n4YBGlcSCQxVUJr8Nf1j%2ffWQfYYkZWh4z2R2T%2bK5PuBhHMoOfb9UbRwSDD%2b66ib54M6%2bY5XM6c6XyyuCA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- cctraff.ru
- zifotev.courtneykanigphotography.com
- kolen.danglesbydeb.com
- files.3-display.com
- files.floridamasonrycouncil.org
- uploads.strikinglycdn.com
- files.kellymichellebaker.com
- xurowe.gypsydenisse.com
- kunefo.guestchefdetroit.com
- vevaget.sheilasbeautystarsalon.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 172.172.255.218
- 20.184.175.21
- 135.232.92.34
- 4.150.223.98
- 20.42.65.88
- 172.66.2.5
- 48.211.4.16
- 4.230.171.124
- 20.3.4.127
- 74.178.240.61
- 135.233.95.135
- 20.76.201.171
- 52.123.129.14
- 74.178.76.44
- 203.26.79.13
- 92.223.78.30
- 4.150.223.104
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report