Analysis
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max time kernel
140s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
23-12-2024 00:44
Static task
static1
Behavioral task
behavioral1
Sample
8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe
Resource
win7-20240903-en
General
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Target
8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe
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Size
558KB
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MD5
0853af43062bc1ebc6e577dcc06d698c
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SHA1
0ae55f26e328d7ae27b334d9e232fba337a7e06a
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SHA256
8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b
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SHA512
f8f234f2fb189e7fe5dbebc08b23c1476d261a3c998459f436a4e69712a0c87b0bc442275cdd8359fec27c56e358336c0ef51bc1c6049eb64d11dbcf7941b90b
-
SSDEEP
12288:RK777777777777N7vPLjIb2b6Gb9k/Yurwua412+J+Oz11Q6Gdu:RK777777777777lvzcb06QAY5uBL1Qc
Malware Config
Extracted
nanocore
1.2.2.0
23.105.131.228:1604
2fc0dda4-46bf-46a1-9071-1400f4c43df4
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activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2021-09-21T09:35:25.099061636Z
-
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
1604
-
default_group
CEOs
-
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
2fc0dda4-46bf-46a1-9071-1400f4c43df4
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
23.105.131.228
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
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
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Nanocore family
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2704 powershell.exe 2096 powershell.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\UDP Manager = "C:\\Program Files (x86)\\UDP Manager\\udpmgr.exe" 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1628 set thread context of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\UDP Manager\udpmgr.exe 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe File opened for modification C:\Program Files (x86)\UDP Manager\udpmgr.exe 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.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 7 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 powershell.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 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.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 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2740 schtasks.exe 2972 schtasks.exe 1012 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 2704 powershell.exe 2096 powershell.exe 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe Token: SeDebugPrivilege 2704 powershell.exe Token: SeDebugPrivilege 2096 powershell.exe Token: SeDebugPrivilege 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 1628 wrote to memory of 2096 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 30 PID 1628 wrote to memory of 2096 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 30 PID 1628 wrote to memory of 2096 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 30 PID 1628 wrote to memory of 2096 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 30 PID 1628 wrote to memory of 2704 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 32 PID 1628 wrote to memory of 2704 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 32 PID 1628 wrote to memory of 2704 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 32 PID 1628 wrote to memory of 2704 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 32 PID 1628 wrote to memory of 2740 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 34 PID 1628 wrote to memory of 2740 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 34 PID 1628 wrote to memory of 2740 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 34 PID 1628 wrote to memory of 2740 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 34 PID 1628 wrote to memory of 2828 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 36 PID 1628 wrote to memory of 2828 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 36 PID 1628 wrote to memory of 2828 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 36 PID 1628 wrote to memory of 2828 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 36 PID 1628 wrote to memory of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 PID 1628 wrote to memory of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 PID 1628 wrote to memory of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 PID 1628 wrote to memory of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 PID 1628 wrote to memory of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 PID 1628 wrote to memory of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 PID 1628 wrote to memory of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 PID 1628 wrote to memory of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 PID 1628 wrote to memory of 2424 1628 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 37 PID 2424 wrote to memory of 2972 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 38 PID 2424 wrote to memory of 2972 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 38 PID 2424 wrote to memory of 2972 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 38 PID 2424 wrote to memory of 2972 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 38 PID 2424 wrote to memory of 1012 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 40 PID 2424 wrote to memory of 1012 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 40 PID 2424 wrote to memory of 1012 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 40 PID 2424 wrote to memory of 1012 2424 8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe 40
Processes
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C:\Users\Admin\AppData\Local\Temp\8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe"C:\Users\Admin\AppData\Local\Temp\8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1628 -
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\8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2096
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\umSJYhnmkJ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2704
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\umSJYhnmkJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2491.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2740
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C:\Users\Admin\AppData\Local\Temp\8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe"C:\Users\Admin\AppData\Local\Temp\8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe"2⤵PID:2828
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C:\Users\Admin\AppData\Local\Temp\8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.exe"C:\Users\Admin\AppData\Local\Temp\8c8ff970b9534520171f97dba6bf582e2b1a33110bdae24412d322295ba5a28b.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:2424 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UDP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp26A3.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2972
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UDP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2702.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1012
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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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Filesize
1KB
MD5010206523c2ef25647162079eda7f2d3
SHA1090392f386c3a343234b6140a9e44675883556f2
SHA2561104c0bb495627ac8c49f3faedd666f8718dd7a19dabd40fbf50fe5db13c428c
SHA5126e9a44ed428373ac0310ba205dc007b30c626fd19fdcb905ccb14429d46b10c5c0ea3d9a68a8f89090c8438cbc7596c8bcea2c8f28bc13fbc4b3fe16c49a5bd6
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Filesize
1KB
MD5c9601783911a342b4ac5a0206963e75e
SHA1c1727d06249987059b9f473494f35ee1a79a8e3c
SHA2562699ad4a71e0bf2b040a223f34f82c75d9a70f6ac293724c763ffa7042e74cc6
SHA512c6b00de6a1c4a736db20005d7d7bc9f4095a627a05dd980a432ee2adc46d469d376a6c35ea1ecfbe2f4b59a4d5eac0a3450716f0d63418bb1e0c9f6d4350ebd7
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Filesize
1KB
MD5c1c4b266e129249076bbe8a15cc5e06c
SHA1312b8173c264245c834eee91e05dcca845c341f8
SHA256f336d06dcadca621be6b2dc9493dcb84d871497e65142bc9fdd72c9f250a1b7b
SHA5120f02ec7700f89d95d29014eec42d13c85234351c3fe1dc6a3efeea52ea76ca4bea3151567a6c798b5ce658d481b424646b43d93e95ccad897356a87a25d45041
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD57d1132de7d8c4d90d923891420001bb7
SHA10ce2efa3a048e705057c69250df466409c694bc1
SHA2568a82fdcb5692a914c8472cfdeb23f47c3c0ce5474ef4f9ee8f9ec9e69d3f7373
SHA512b7598a91d23f1acd23a0e29d22753521a2e8bd63ecb19ff7c1a044b85230b2a29af59679be56d5a40869721230a2fdc005091d9c0892bbb89f18ba650e5c7bfe