Analysis
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max time kernel
119s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
28-10-2024 11:20
Static task
static1
Behavioral task
behavioral1
Sample
9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe
Resource
win7-20241023-en
General
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Target
9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe
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Size
415KB
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MD5
447a4b1c8a5b7482273a1dd9bb238b80
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SHA1
56b3a119d788d7e816cbc6fa1da96b9e16dad746
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SHA256
9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5a
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SHA512
b54e4a9c1765ee684da9f41e5a86b80cfd5df1907a231a056ffa282f30127830c957187f7b973087b436a994f7f1c8dc6979745ccfef236c7346c897516b4eef
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SSDEEP
6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7w:ITNYrnE3bm/CiejewY5vz
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
-
connect_delay
4000
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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
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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
-
wan_timeout
8000
Signatures
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Nanocore family
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Executes dropped EXE 1 IoCs
pid Process 2764 ximo2ubzn1i.exe -
Loads dropped DLL 1 IoCs
pid Process 2100 9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe" 9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.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 2764 set thread context of 2892 2764 ximo2ubzn1i.exe 29 -
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 9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.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 2 IoCs
pid Process 2892 regasm.exe 2892 regasm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2892 regasm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2892 regasm.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2100 wrote to memory of 2764 2100 9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe 28 PID 2100 wrote to memory of 2764 2100 9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe 28 PID 2100 wrote to memory of 2764 2100 9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe 28 PID 2100 wrote to memory of 2764 2100 9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe 28 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29 PID 2764 wrote to memory of 2892 2764 ximo2ubzn1i.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe"C:\Users\Admin\AppData\Local\Temp\9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100 -
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:2764 -
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:2892
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
415KB
MD5d1b8dd0d1106dc83e2a9c14c790c3be6
SHA124743fffe33f0d15461e1c8c759960c389acdefc
SHA256e44c7076aae1322f80507fea6727b9a6e19118d57fc9411f67ef4f03223ea224
SHA5125ca04fc07984c80918644be73fc14e4185476290be646f88e5c9c7396c38ca5d42df70dccc7fb2f1662a6ad58e7965a240eefe6193858a347705b264b5ca30db