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Analysis
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max time kernel
149s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
27/09/2024, 13:43
Static task
static1
Behavioral task
behavioral1
Sample
edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe
Resource
win7-20240903-en
General
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Target
edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe
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Size
1.1MB
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MD5
bbda88bc337db938c1ed0a2ebca61e1f
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SHA1
5ae8493de3bf30e9db4681a139376409090b3a60
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SHA256
edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff
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SHA512
0743e30d2e6d3cc2536bc6171820577c700df0277acf5aecbc9fe7b009e1df7e2e4d2db7e524b4e12d95646e603776375ca2b227b438303d28edb5632ab28d88
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SSDEEP
24576:1AHnh+eWsN3skA4RV1Hom2KXMmHahZB/Nep86f3YAm4W5e:kh+ZkldoPK8Yahb/NKKAm9e
Malware Config
Extracted
nanocore
1.2.2.0
160.202.163.242:6765
c0a66e70-712e-4e13-85d0-5362a812b1a5
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activate_away_mode
true
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backup_connection_host
160.202.163.242
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2019-02-24T16:03:16.653191036Z
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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
6765
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default_group
Default
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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
c0a66e70-712e-4e13-85d0-5362a812b1a5
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
160.202.163.242
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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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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VsGraphicsDesktopEngine.lnk edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ISS Host = "C:\\Program Files (x86)\\ISS Host\\isshost.exe" RegAsm.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2676 set thread context of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\ISS Host\isshost.exe RegAsm.exe File opened for modification C:\Program Files (x86)\ISS Host\isshost.exe RegAsm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2568 schtasks.exe 2004 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2480 RegAsm.exe 2480 RegAsm.exe 2480 RegAsm.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2480 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2480 RegAsm.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2676 wrote to memory of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 PID 2676 wrote to memory of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 PID 2676 wrote to memory of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 PID 2676 wrote to memory of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 PID 2676 wrote to memory of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 PID 2676 wrote to memory of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 PID 2676 wrote to memory of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 PID 2676 wrote to memory of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 PID 2676 wrote to memory of 2480 2676 edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe 31 PID 2480 wrote to memory of 2568 2480 RegAsm.exe 32 PID 2480 wrote to memory of 2568 2480 RegAsm.exe 32 PID 2480 wrote to memory of 2568 2480 RegAsm.exe 32 PID 2480 wrote to memory of 2568 2480 RegAsm.exe 32 PID 2480 wrote to memory of 2004 2480 RegAsm.exe 34 PID 2480 wrote to memory of 2004 2480 RegAsm.exe 34 PID 2480 wrote to memory of 2004 2480 RegAsm.exe 34 PID 2480 wrote to memory of 2004 2480 RegAsm.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe"C:\Users\Admin\AppData\Local\Temp\edeb4483d09aea76f78b672e5fa7578f23e98bf8a169445c99befdf9e667f9ff.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2676 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2480 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ISS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp68C1.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2568
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ISS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6910.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2004
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
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Filesize
1KB
MD5c6f0625bf4c1cdfb699980c9243d3b22
SHA143de1fe580576935516327f17b5da0c656c72851
SHA2568dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576
SHA5129ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969
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Filesize
1KB
MD53d1580c0395f6de62659467f5b7f1acf
SHA18e73a3885896cecca7ff799a272fc9ddfe06ea96
SHA2566f40196c42a171f24a3e16edeca664cdc5a2f7c150d468255b0e14ab10a2b714
SHA5127637c0d9b03227dffcb00a68d97ddce60bfc40ca0f8a7a4bbd700ea56be6d570908511dea5cab9f609a7da2e558e5298c482fd1e330af085f9c52867d5a847ea