General
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Target
c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace
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Size
1.3MB
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Sample
231102-fjnf6ahg78
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MD5
c003ceed32075bc7f2badbb474ea85a6
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SHA1
44b4f6bb6730456a7d88b67ed0c7d90d0140b5a8
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SHA256
c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace
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SHA512
d926aed44947fb1be14d3815d572d4990b47eacae33c50e675d5947ec26a406682505a4b1864761ee53ddce521cc082c503ee425e6c5492d2659c1b19dbbfcb5
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SSDEEP
24576:1mHjtcfR2p9iZRGJVLdRrSyE0uzlRZLfre43ccbv6oKmf8WDbuGfM:8HjtJae3jnE1zU43cGv6oKmfFDB
Static task
static1
Behavioral task
behavioral1
Sample
c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace.exe
Resource
win7-20231020-en
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Targets
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Target
c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace
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Size
1.3MB
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MD5
c003ceed32075bc7f2badbb474ea85a6
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SHA1
44b4f6bb6730456a7d88b67ed0c7d90d0140b5a8
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SHA256
c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace
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SHA512
d926aed44947fb1be14d3815d572d4990b47eacae33c50e675d5947ec26a406682505a4b1864761ee53ddce521cc082c503ee425e6c5492d2659c1b19dbbfcb5
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SSDEEP
24576:1mHjtcfR2p9iZRGJVLdRrSyE0uzlRZLfre43ccbv6oKmf8WDbuGfM:8HjtJae3jnE1zU43cGv6oKmfFDB
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Glupteba payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Modifies boot configuration data using bcdedit
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Blocklisted process makes network request
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies Windows Firewall
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Possible attempt to disable PatchGuard
Rootkits can use kernel patching to embed themselves in an operating system.
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Stops running service(s)
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops Chrome extension
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Drops desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Defense Evasion
Impair Defenses
4Disable or Modify Tools
2Modify Registry
4Subvert Trust Controls
1Install Root Certificate
1