General
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Target
2024-11-06_9fc1a894f48c14ca703edb75b4b1d340_cobalt-strike_ryuk
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Size
2.4MB
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Sample
241106-ps6hrssnfk
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MD5
9fc1a894f48c14ca703edb75b4b1d340
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SHA1
64e7263f9c572e65d69eaab3f30c4dfb91cca87a
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SHA256
c7b6685f52c3b23d1bc350ab366bcf2acd94c9fe35f18cc3167df325e701ef64
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SHA512
36dd4871de58aa05c77a84fb6c5ab818cc36ade818fad3a3fbe10ccc161f095febfae6300ffcd6f433b19d6e9d7ad130d5654da9a32ad39b26b1f0a5629639fb
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SSDEEP
49152:By2cW23etDz1x5bhnUHiBRuiH28jbp5ccpnpuoijYT4Uf:pzV5RHVp5Jai
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-06_9fc1a894f48c14ca703edb75b4b1d340_cobalt-strike_ryuk.exe
Resource
win7-20241010-en
Malware Config
Extracted
phorphiex
http://185.215.113.84
http://185.215.113.66
Extracted
phorphiex
http://185.215.113.66/
http://91.202.233.141/
0xCa90599132C4D88907Bd8E046540284aa468a035
TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6
qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
XryzFMFVpDUvU7famUGf214EXD3xNUSmQf
rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9
AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z
LTK4xdKPAgFHPLan8kriAD7eY4heyy73mB
MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q
4BB7ckkaPTyADc8trtuwDoZxywaR4eNL5cDJ3KBjq9GraN4mUFztf7mLS7WgT7Bh7uPqpjvA4ypVwXKCJ1vvLWWAFvSmDoD
15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC
1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK
ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp
3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc
3ESHude8zUHksQg1h6hHmzY79BS36L91Yn
DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA
t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh
stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj
bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2
bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr
bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd
bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3
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mutex
mmn7nnm8na
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user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36
Targets
-
-
Target
2024-11-06_9fc1a894f48c14ca703edb75b4b1d340_cobalt-strike_ryuk
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Size
2.4MB
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MD5
9fc1a894f48c14ca703edb75b4b1d340
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SHA1
64e7263f9c572e65d69eaab3f30c4dfb91cca87a
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SHA256
c7b6685f52c3b23d1bc350ab366bcf2acd94c9fe35f18cc3167df325e701ef64
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SHA512
36dd4871de58aa05c77a84fb6c5ab818cc36ade818fad3a3fbe10ccc161f095febfae6300ffcd6f433b19d6e9d7ad130d5654da9a32ad39b26b1f0a5629639fb
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SSDEEP
49152:By2cW23etDz1x5bhnUHiBRuiH28jbp5ccpnpuoijYT4Uf:pzV5RHVp5Jai
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Modifies security service
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Phorphiex family
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Phorphiex payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1