Analysis
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max time kernel
148s -
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
01-11-2024 05:18
Static task
static1
Behavioral task
behavioral1
Sample
8e2827146c4c433affba78c88fd685db.exe
Resource
win7-20240903-en
General
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Target
8e2827146c4c433affba78c88fd685db.exe
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Size
758KB
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MD5
8e2827146c4c433affba78c88fd685db
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SHA1
de632114a70a9ad4b16ed686e48477f398531ae0
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SHA256
058e2c02b8cfb93b480ea8cfac08e967b39631a579256ebee27fb7472194c1ea
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SHA512
ba45a34ecb7d176392c43cd8b80d8181e77f1cc6536459163439a4456389a6208e053bc6a449f7974595d44b69a269833958bfe1ede7498f31538b84ddbff151
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SSDEEP
12288:fn9InteYPjOFGGCA2ythZoESN0vXMgmW3oSrnvuiYZftZvskj2/Q4AyrrRPdh:fEPtpy/2ESNimW3oovZYB2o4JPd
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
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buffer_size
65535
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build_time
2024-08-05T03:49:33.827385136Z
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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
1664
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default_group
CAT
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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
a376f716-2f77-4943-a431-3a3bcb53b7c0
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
66.63.187.113
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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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Nanocore family
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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:
8e2827146c4c433affba78c88fd685db.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation 8e2827146c4c433affba78c88fd685db.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
8e2827146c4c433affba78c88fd685db.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe" 8e2827146c4c433affba78c88fd685db.exe -
Processes:
8e2827146c4c433affba78c88fd685db.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 8e2827146c4c433affba78c88fd685db.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
8e2827146c4c433affba78c88fd685db.exedescription pid Process procid_target PID 2208 set thread context of 3936 2208 8e2827146c4c433affba78c88fd685db.exe 96 -
Drops file in Program Files directory 2 IoCs
Processes:
8e2827146c4c433affba78c88fd685db.exedescription ioc Process File created C:\Program Files (x86)\ARP Host\arphost.exe 8e2827146c4c433affba78c88fd685db.exe File opened for modification C:\Program Files (x86)\ARP Host\arphost.exe 8e2827146c4c433affba78c88fd685db.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 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
8e2827146c4c433affba78c88fd685db.exepowershell.exeschtasks.exeschtasks.exe8e2827146c4c433affba78c88fd685db.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8e2827146c4c433affba78c88fd685db.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8e2827146c4c433affba78c88fd685db.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 3392 schtasks.exe 3124 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
powershell.exe8e2827146c4c433affba78c88fd685db.exepid Process 1824 powershell.exe 1824 powershell.exe 3936 8e2827146c4c433affba78c88fd685db.exe 3936 8e2827146c4c433affba78c88fd685db.exe 3936 8e2827146c4c433affba78c88fd685db.exe 3936 8e2827146c4c433affba78c88fd685db.exe 3936 8e2827146c4c433affba78c88fd685db.exe 3936 8e2827146c4c433affba78c88fd685db.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
8e2827146c4c433affba78c88fd685db.exepid Process 3936 8e2827146c4c433affba78c88fd685db.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exe8e2827146c4c433affba78c88fd685db.exedescription pid Process Token: SeDebugPrivilege 1824 powershell.exe Token: SeDebugPrivilege 3936 8e2827146c4c433affba78c88fd685db.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
8e2827146c4c433affba78c88fd685db.exe8e2827146c4c433affba78c88fd685db.exedescription pid Process procid_target PID 2208 wrote to memory of 1824 2208 8e2827146c4c433affba78c88fd685db.exe 94 PID 2208 wrote to memory of 1824 2208 8e2827146c4c433affba78c88fd685db.exe 94 PID 2208 wrote to memory of 1824 2208 8e2827146c4c433affba78c88fd685db.exe 94 PID 2208 wrote to memory of 3936 2208 8e2827146c4c433affba78c88fd685db.exe 96 PID 2208 wrote to memory of 3936 2208 8e2827146c4c433affba78c88fd685db.exe 96 PID 2208 wrote to memory of 3936 2208 8e2827146c4c433affba78c88fd685db.exe 96 PID 2208 wrote to memory of 3936 2208 8e2827146c4c433affba78c88fd685db.exe 96 PID 2208 wrote to memory of 3936 2208 8e2827146c4c433affba78c88fd685db.exe 96 PID 2208 wrote to memory of 3936 2208 8e2827146c4c433affba78c88fd685db.exe 96 PID 2208 wrote to memory of 3936 2208 8e2827146c4c433affba78c88fd685db.exe 96 PID 2208 wrote to memory of 3936 2208 8e2827146c4c433affba78c88fd685db.exe 96 PID 3936 wrote to memory of 3392 3936 8e2827146c4c433affba78c88fd685db.exe 97 PID 3936 wrote to memory of 3392 3936 8e2827146c4c433affba78c88fd685db.exe 97 PID 3936 wrote to memory of 3392 3936 8e2827146c4c433affba78c88fd685db.exe 97 PID 3936 wrote to memory of 3124 3936 8e2827146c4c433affba78c88fd685db.exe 99 PID 3936 wrote to memory of 3124 3936 8e2827146c4c433affba78c88fd685db.exe 99 PID 3936 wrote to memory of 3124 3936 8e2827146c4c433affba78c88fd685db.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\8e2827146c4c433affba78c88fd685db.exe"C:\Users\Admin\AppData\Local\Temp\8e2827146c4c433affba78c88fd685db.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2208 -
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\8e2827146c4c433affba78c88fd685db.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1824
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C:\Users\Admin\AppData\Local\Temp\8e2827146c4c433affba78c88fd685db.exe"C:\Users\Admin\AppData\Local\Temp\8e2827146c4c433affba78c88fd685db.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:3936 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC208.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3392
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC739.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3124
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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\8e2827146c4c433affba78c88fd685db.exe.log
Filesize1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD508c69c4c90c9dc132cca5b405f300c6a
SHA14e3f54b70e448a400880101e1068e1fbeeefa624
SHA2564074632002d0a339832ce7dee2cca7c9ca6b0fe4405a43cd971decb81541701f
SHA5127a7b300706631b455fa811aa4a868ad72cd3b4605928e22eeafbc126f6901219ae8d3b059fd363c5bf678c8b858b6362ca8140cbb929c204d269c233d85e09f1
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Filesize
1KB
MD5447ab194ab36cb1d20078d80e502b1b2
SHA1a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0
SHA2568d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5
SHA51249ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327