Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
08-11-2024 04:03
Static task
static1
Behavioral task
behavioral1
Sample
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe
Resource
win7-20241023-en
General
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Target
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe
-
Size
831KB
-
MD5
f9f3ee35f62eba494f4f755850617a85
-
SHA1
2f01785e036cb476d67249bef9881b0116912309
-
SHA256
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870
-
SHA512
6a44351b520b9a6869b695d1fe31aadd73dc099358ada5ace0882d883b94ff83ae990b247fb68f9cbb09f12f8bacc3202e5f4a0c90a4c2bad218254d263a97e9
-
SSDEEP
24576:zq0qvumN3gUCTcpVfFBbsuYqwnB5t7UG4DL:zqwmtgUZpVgpqwn17eDL
Malware Config
Extracted
nanocore
1.2.2.0
66.63.187.113:1664
a376f716-2f77-4943-a431-3a3bcb53b7c0
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activate_away_mode
true
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backup_connection_host
66.63.187.113
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backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2024-08-05T03:49:33.827385136Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1664
-
default_group
CAT
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
a376f716-2f77-4943-a431-3a3bcb53b7c0
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mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
66.63.187.113
-
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
-
run_on_startup
false
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set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
-
Nanocore family
-
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Host = "C:\\Program Files (x86)\\DHCP Host\\dhcphost.exe" e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe -
Processes:
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exedescription pid Process procid_target PID 3960 set thread context of 3664 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 101 -
Drops file in Program Files directory 2 IoCs
Processes:
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exedescription ioc Process File created C:\Program Files (x86)\DHCP Host\dhcphost.exe e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe File opened for modification C:\Program Files (x86)\DHCP Host\dhcphost.exe e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
schtasks.exee49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exee49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exepowershell.exeschtasks.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.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.
Processes:
schtasks.exeschtasks.exepid Process 4452 schtasks.exe 2928 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
powershell.exee49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exepid Process 5044 powershell.exe 5044 powershell.exe 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exepid Process 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exee49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exedescription pid Process Token: SeDebugPrivilege 5044 powershell.exe Token: SeDebugPrivilege 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exee49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exedescription pid Process procid_target PID 3960 wrote to memory of 5044 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 99 PID 3960 wrote to memory of 5044 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 99 PID 3960 wrote to memory of 5044 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 99 PID 3960 wrote to memory of 3664 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 101 PID 3960 wrote to memory of 3664 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 101 PID 3960 wrote to memory of 3664 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 101 PID 3960 wrote to memory of 3664 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 101 PID 3960 wrote to memory of 3664 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 101 PID 3960 wrote to memory of 3664 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 101 PID 3960 wrote to memory of 3664 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 101 PID 3960 wrote to memory of 3664 3960 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 101 PID 3664 wrote to memory of 4452 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 102 PID 3664 wrote to memory of 4452 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 102 PID 3664 wrote to memory of 4452 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 102 PID 3664 wrote to memory of 2928 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 104 PID 3664 wrote to memory of 2928 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 104 PID 3664 wrote to memory of 2928 3664 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3960 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5044
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C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.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:3664 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD707.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4452
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-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD91B.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2928
-
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
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
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe.log
Filesize1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD57a5b2999f1100d2c6783bba14fbd9c1a
SHA15823601acfe4e5da055eb2a42364b85cb894ce2f
SHA256f41bc60f4470994c3841458440cdeaf105afea2b5984d8742f8da4375babf2c3
SHA512cee623fe27d8b4ad31b53e1587194b5b3316632f05572033c538db6b21cc2ce73f128bd8eb6476e355650d6ffaf9a7c4aeda4e71f3c8bfb7bacb07875428679e
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Filesize
1KB
MD50479d5f304ef2d7e3c15fb24a99f88c1
SHA18edbb1450a656fac5f5e96779ffe440ee8c1aec9
SHA256112557c2b2d0c669a3b115129dc32f005341e965330fa8f2ad3e5de1926594bc
SHA512537e8d87e5cd975f0e69bb145f81d6e9d7b0d82eed143ac351304ea38577137386a51fdb7357ec6d641eb04ff5f51e249bba2db8a4b5bf2934d561394a4a3f15