Analysis
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max time kernel
116s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11-10-2024 12:19
Static task
static1
Behavioral task
behavioral1
Sample
Um9L61WgOApLFKJ.exe
Resource
win7-20241010-en
General
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Target
Um9L61WgOApLFKJ.exe
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Size
607KB
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MD5
3f6058dbb64084df7f3da0a1cb23a872
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SHA1
632554f2fcc9074d8a243de7c420c5663efb956c
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SHA256
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2
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SHA512
a685084608abe12faef64ce719a16688d7a7ce5b81c7a2f0a698fed892b11d4a9e3686b1de64ab3a0ca10bddcfe78b9afcfd76a9fd44768864d7c4c45de7d821
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SSDEEP
12288:ypQS6Mb6fyFHdFWdRshjwHYiYaQaupo8AZzDNFyYpWqpQQ:yfjb6+DqCjjiDuqNZzDNFyYA0QQ
Malware Config
Extracted
nanocore
1.2.2.0
blv23728.ddns.net:6110
127.0.0.1:6110
7c49fc8b-b4e3-4ea2-a895-eda0223cb79d
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activate_away_mode
true
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backup_connection_host
127.0.0.1
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2024-07-11T09:55:17.304143036Z
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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
6110
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default_group
M3M3
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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
7c49fc8b-b4e3-4ea2-a895-eda0223cb79d
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
blv23728.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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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:
Um9L61WgOApLFKJ.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation Um9L61WgOApLFKJ.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Um9L61WgOApLFKJ.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Monitor = "C:\\Program Files (x86)\\ARP Monitor\\arpmon.exe" Um9L61WgOApLFKJ.exe -
Processes:
Um9L61WgOApLFKJ.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Um9L61WgOApLFKJ.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Um9L61WgOApLFKJ.exedescription pid Process procid_target PID 4944 set thread context of 4764 4944 Um9L61WgOApLFKJ.exe 92 -
Drops file in Program Files directory 2 IoCs
Processes:
Um9L61WgOApLFKJ.exedescription ioc Process File created C:\Program Files (x86)\ARP Monitor\arpmon.exe Um9L61WgOApLFKJ.exe File opened for modification C:\Program Files (x86)\ARP Monitor\arpmon.exe Um9L61WgOApLFKJ.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:
Um9L61WgOApLFKJ.exeUm9L61WgOApLFKJ.exepowershell.exeschtasks.exeschtasks.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Um9L61WgOApLFKJ.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Um9L61WgOApLFKJ.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 -
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 1628 schtasks.exe 4452 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
Um9L61WgOApLFKJ.exepowershell.exeUm9L61WgOApLFKJ.exepid Process 4944 Um9L61WgOApLFKJ.exe 4944 Um9L61WgOApLFKJ.exe 1984 powershell.exe 1984 powershell.exe 4764 Um9L61WgOApLFKJ.exe 4764 Um9L61WgOApLFKJ.exe 4764 Um9L61WgOApLFKJ.exe 4764 Um9L61WgOApLFKJ.exe 4764 Um9L61WgOApLFKJ.exe 4764 Um9L61WgOApLFKJ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Um9L61WgOApLFKJ.exepid Process 4764 Um9L61WgOApLFKJ.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Um9L61WgOApLFKJ.exepowershell.exeUm9L61WgOApLFKJ.exedescription pid Process Token: SeDebugPrivilege 4944 Um9L61WgOApLFKJ.exe Token: SeDebugPrivilege 1984 powershell.exe Token: SeDebugPrivilege 4764 Um9L61WgOApLFKJ.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
Um9L61WgOApLFKJ.exeUm9L61WgOApLFKJ.exedescription pid Process procid_target PID 4944 wrote to memory of 1984 4944 Um9L61WgOApLFKJ.exe 89 PID 4944 wrote to memory of 1984 4944 Um9L61WgOApLFKJ.exe 89 PID 4944 wrote to memory of 1984 4944 Um9L61WgOApLFKJ.exe 89 PID 4944 wrote to memory of 2992 4944 Um9L61WgOApLFKJ.exe 91 PID 4944 wrote to memory of 2992 4944 Um9L61WgOApLFKJ.exe 91 PID 4944 wrote to memory of 2992 4944 Um9L61WgOApLFKJ.exe 91 PID 4944 wrote to memory of 4764 4944 Um9L61WgOApLFKJ.exe 92 PID 4944 wrote to memory of 4764 4944 Um9L61WgOApLFKJ.exe 92 PID 4944 wrote to memory of 4764 4944 Um9L61WgOApLFKJ.exe 92 PID 4944 wrote to memory of 4764 4944 Um9L61WgOApLFKJ.exe 92 PID 4944 wrote to memory of 4764 4944 Um9L61WgOApLFKJ.exe 92 PID 4944 wrote to memory of 4764 4944 Um9L61WgOApLFKJ.exe 92 PID 4944 wrote to memory of 4764 4944 Um9L61WgOApLFKJ.exe 92 PID 4944 wrote to memory of 4764 4944 Um9L61WgOApLFKJ.exe 92 PID 4764 wrote to memory of 1628 4764 Um9L61WgOApLFKJ.exe 93 PID 4764 wrote to memory of 1628 4764 Um9L61WgOApLFKJ.exe 93 PID 4764 wrote to memory of 1628 4764 Um9L61WgOApLFKJ.exe 93 PID 4764 wrote to memory of 4452 4764 Um9L61WgOApLFKJ.exe 95 PID 4764 wrote to memory of 4452 4764 Um9L61WgOApLFKJ.exe 95 PID 4764 wrote to memory of 4452 4764 Um9L61WgOApLFKJ.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe"C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4944 -
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\Um9L61WgOApLFKJ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1984
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C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe"C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe"2⤵PID:2992
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C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe"C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.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:4764 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ARP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1F99.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1628
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ARP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2864.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4452
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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
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD54eceb6aafbdfc8863be9e815bdbe080a
SHA1469c063b26a31d1513ce6cb84f62a285e82499fb
SHA256220b9a9d9ac6ec7dc907a1ed502ab841d183672e01e7ff60e7600442a7c4d222
SHA512f40426241bcca79210f9468c5309056cea521121a52c8fcc771b89de470bb909195e1357717c3cbc7425868bf7a4b30e74e4c7255526f4f0c8d2880f30ade40e
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Filesize
1KB
MD5acc7d7829edec6af26aa18f8ca7776ef
SHA129f5290d08127f29924a2eb189e21b9bcfbb6f3a
SHA2562165ad57e4cd29e911a2861e1fe6366ce11912c95f8e5ede61d247b75753001a
SHA51207e84e0f7eb030dc0f2efde201c023051a2559dbdcde957fea73669a6e2deac9848cf3503e4e7f9524660d61ead850632bb998f12b73b887dfe841286002bc5b