Analysis
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max time kernel
134s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
28-05-2024 14:13
Static task
static1
Behavioral task
behavioral1
Sample
8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe
Resource
win7-20240221-en
General
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Target
8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe
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Size
1.0MB
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MD5
56eacbaec7c2239feeacdadf3fae0786
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SHA1
4dc23ff9c577ae0218a8e87818400b952bc45170
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SHA256
8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9
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SHA512
ab109cdb85febecb7a8307d9b3aa12219b6717fbcc1e610619e6947ba38a2e465b3bd472c53c1a11f6292ec82e8b28088a977fb2e11ed30b10768a309d3fec8f
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SSDEEP
24576:OAHnh+eWsN3skA4RV1Hom2KXMmHasJkhRx2hjnQE6nHTo5:5h+ZkldoPK8Yasmh/yjnQEgHK
Malware Config
Extracted
nanocore
1.2.2.0
zaragoza.ddns.net:6318
23bc2405-d53d-4763-a563-8ae141477f39
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activate_away_mode
true
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backup_connection_host
zaragoza.ddns.net
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2024-03-05T18:44:12.253319636Z
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bypass_user_account_control
false
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bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
6318
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default_group
BULKMONEY
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
23bc2405-d53d-4763-a563-8ae141477f39
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
zaragoza.ddns.net
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
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run_on_startup
false
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set_critical_process
true
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timeout_interval
5000
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NAS Host = "C:\\Program Files (x86)\\NAS Host\\nashost.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exedescription pid process target process PID 2904 set thread context of 2156 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe RegSvcs.exe -
Drops file in Program Files directory 2 IoCs
Processes:
RegSvcs.exedescription ioc process File created C:\Program Files (x86)\NAS Host\nashost.exe RegSvcs.exe File opened for modification C:\Program Files (x86)\NAS Host\nashost.exe RegSvcs.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1340 schtasks.exe 2724 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegSvcs.exepid process 2156 RegSvcs.exe 2156 RegSvcs.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegSvcs.exepid process 2156 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exepid process 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeDebugPrivilege 2156 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exepid process 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exepid process 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exeRegSvcs.exedescription pid process target process PID 2904 wrote to memory of 2156 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe RegSvcs.exe PID 2904 wrote to memory of 2156 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe RegSvcs.exe PID 2904 wrote to memory of 2156 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe RegSvcs.exe PID 2904 wrote to memory of 2156 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe RegSvcs.exe PID 2904 wrote to memory of 2156 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe RegSvcs.exe PID 2904 wrote to memory of 2156 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe RegSvcs.exe PID 2904 wrote to memory of 2156 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe RegSvcs.exe PID 2904 wrote to memory of 2156 2904 8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe RegSvcs.exe PID 2156 wrote to memory of 1340 2156 RegSvcs.exe schtasks.exe PID 2156 wrote to memory of 1340 2156 RegSvcs.exe schtasks.exe PID 2156 wrote to memory of 1340 2156 RegSvcs.exe schtasks.exe PID 2156 wrote to memory of 1340 2156 RegSvcs.exe schtasks.exe PID 2156 wrote to memory of 2724 2156 RegSvcs.exe schtasks.exe PID 2156 wrote to memory of 2724 2156 RegSvcs.exe schtasks.exe PID 2156 wrote to memory of 2724 2156 RegSvcs.exe schtasks.exe PID 2156 wrote to memory of 2724 2156 RegSvcs.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe"C:\Users\Admin\AppData\Local\Temp\8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\8008ab1db4e5ce83daea144f7ff2c2c81f10f73843fc1ddba4040426a54fd1a9.exe"2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "NAS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp277E.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "NAS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp283A.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp277E.tmpFilesize
1KB
MD540b11ef601fb28f9b2e69d36857bf2ec
SHA1b6454020ad2ceed193f4792b77001d0bd741b370
SHA256c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1
SHA512e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5
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C:\Users\Admin\AppData\Local\Temp\tmp283A.tmpFilesize
1KB
MD59f554f602c22cfc20079e966d177fadb
SHA1789baa3425849bf239e47c6bcf352e6693a8c337
SHA2564c760d5fe0c06cf4bf554170870f41181c61a217c37eb826903094dda86dd1f1
SHA512b83e3e97dbe38ec4c64d9bef65e2521416f2d7434d78d05e66f729a2e0fbfea3f9bc6f6c4abaf76555af89a9565dfc0853d99067be9042dd66ed6246696eecbb
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memory/2156-18-0x00000000742E0000-0x000000007488B000-memory.dmpFilesize
5.7MB
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memory/2156-15-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2156-16-0x00000000742E1000-0x00000000742E2000-memory.dmpFilesize
4KB
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memory/2156-17-0x00000000742E0000-0x000000007488B000-memory.dmpFilesize
5.7MB
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memory/2156-13-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2156-11-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2156-26-0x00000000742E0000-0x000000007488B000-memory.dmpFilesize
5.7MB
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memory/2156-27-0x00000000742E0000-0x000000007488B000-memory.dmpFilesize
5.7MB
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memory/2156-28-0x00000000742E0000-0x000000007488B000-memory.dmpFilesize
5.7MB
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memory/2156-29-0x00000000742E0000-0x000000007488B000-memory.dmpFilesize
5.7MB
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memory/2156-30-0x00000000742E0000-0x000000007488B000-memory.dmpFilesize
5.7MB
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memory/2904-10-0x0000000000160000-0x0000000000164000-memory.dmpFilesize
16KB