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Analysis
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max time kernel
51s -
max time network
59s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
23/09/2024, 19:31
Static task
static1
Behavioral task
behavioral1
Sample
2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.exe
Resource
win7-20240903-en
General
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Target
2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.exe
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Size
415KB
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MD5
ae3f70952483caddf1ece74ebd2c0f54
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SHA1
1eef346bbc2e86f55ffec12031084af0941afc76
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SHA256
2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83
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SHA512
a1c2cc8c85f7c8a00d02ed7f3ac1de5ff83d349b5f6bd26c64506bed974a059015f443ac4565b30e0b724ddbc6bf7b1a41dddff246182cbe937e99994add63ef
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SSDEEP
6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU70:ITNYrnE3bm/CiejewY5vn
Malware Config
Extracted
nanocore
1.2.2.0
4af74541-e3f1-469c-8af7-efe4071b81cf
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activate_away_mode
false
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backup_connection_host
178.32.224.116
- backup_dns_server
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buffer_size
65535
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build_time
2018-07-28T12:59:38.488799236Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
false
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clear_zone_identifier
false
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connect_delay
4000
-
connection_port
46218
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default_group
tourex
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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
-
max_packet_size
1.048576e+07
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mutex
4af74541-e3f1-469c-8af7-efe4071b81cf
-
mutex_timeout
5000
-
prevent_system_sleep
false
- primary_connection_host
- primary_dns_server
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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
true
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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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation 2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.exe -
Executes dropped EXE 1 IoCs
pid Process 1652 ximo2ubzn1i.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe" 2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.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 1652 set thread context of 1920 1652 ximo2ubzn1i.exe 87 -
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 3 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 2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ximo2ubzn1i.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regasm.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1920 regasm.exe 1920 regasm.exe 1920 regasm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1920 regasm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1920 regasm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3980 wrote to memory of 1652 3980 2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.exe 86 PID 3980 wrote to memory of 1652 3980 2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.exe 86 PID 3980 wrote to memory of 1652 3980 2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.exe 86 PID 1652 wrote to memory of 1920 1652 ximo2ubzn1i.exe 87 PID 1652 wrote to memory of 1920 1652 ximo2ubzn1i.exe 87 PID 1652 wrote to memory of 1920 1652 ximo2ubzn1i.exe 87 PID 1652 wrote to memory of 1920 1652 ximo2ubzn1i.exe 87 PID 1652 wrote to memory of 1920 1652 ximo2ubzn1i.exe 87 PID 1652 wrote to memory of 1920 1652 ximo2ubzn1i.exe 87 PID 1652 wrote to memory of 1920 1652 ximo2ubzn1i.exe 87 PID 1652 wrote to memory of 1920 1652 ximo2ubzn1i.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.exe"C:\Users\Admin\AppData\Local\Temp\2d7f482599803bb65734c48e70558a30304a1f912b7508bd7073dbafcaee7d83.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3980 -
C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1652 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"3⤵
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1920
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
415KB
MD5c41eed675767ebdc0a55dea3055ed900
SHA130b89ff7dc5486185df6a99bc50d3c83882e4e2f
SHA256ab0b24022fd1b3d006b4f7afce902305693e2b831b842e00f991db138f7b9d7b
SHA5121e7c45d17dc7523fa2ba2a3712ac5bbd901561d955b4ee7bc8b06f0f4727a4934139068727db9e666229ee49260004c4387fd99140e52d834326531ef18338d1