Analysis
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max time kernel
146s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 18:41
Static task
static1
Behavioral task
behavioral1
Sample
Quotation Sheet_#RFQ25052020.exe
Resource
win7-20220414-en
General
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Target
Quotation Sheet_#RFQ25052020.exe
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Size
1.2MB
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MD5
2e197c506dbe05b5e614390215860d7d
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SHA1
2ffced59fccd83aa75a31bbacaca65545a737f4a
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SHA256
2be3bf37f2782236a81cef2fbfc1bc075d9ff92499d01587b04d14d5c9babdbc
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SHA512
e947c453fd4b558c42432041f2093e0c07c1dc38e4a795782478b59223d236ad0f11ea286174549d301a88cf2eb6f22dbebba52c331f8d1c311e7ff0b4ffc15c
Malware Config
Extracted
nanocore
1.2.2.0
eagleshth.ddns.net:1680
127.0.0.1:1680
b951ab5e-704e-48e0-b051-d721c3dbf268
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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
2020-03-06T13:06:39.474076236Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
-
connect_delay
4000
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connection_port
1680
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default_group
MAY25
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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
b951ab5e-704e-48e0-b051-d721c3dbf268
-
mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
eagleshth.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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Drops startup file 1 IoCs
Processes:
Quotation Sheet_#RFQ25052020.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FileHistory.url Quotation Sheet_#RFQ25052020.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
MSBuild.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DSL Service = "C:\\Program Files (x86)\\DSL Service\\dslsv.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Quotation Sheet_#RFQ25052020.exedescription pid process target process PID 304 set thread context of 988 304 Quotation Sheet_#RFQ25052020.exe MSBuild.exe -
Drops file in Program Files directory 2 IoCs
Processes:
MSBuild.exedescription ioc process File created C:\Program Files (x86)\DSL Service\dslsv.exe MSBuild.exe File opened for modification C:\Program Files (x86)\DSL Service\dslsv.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
MSBuild.exepid process 988 MSBuild.exe 988 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
MSBuild.exepid process 988 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 988 MSBuild.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
Quotation Sheet_#RFQ25052020.exepid process 304 Quotation Sheet_#RFQ25052020.exe 304 Quotation Sheet_#RFQ25052020.exe 304 Quotation Sheet_#RFQ25052020.exe -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
Quotation Sheet_#RFQ25052020.exepid process 304 Quotation Sheet_#RFQ25052020.exe 304 Quotation Sheet_#RFQ25052020.exe 304 Quotation Sheet_#RFQ25052020.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
Quotation Sheet_#RFQ25052020.exedescription pid process target process PID 304 wrote to memory of 988 304 Quotation Sheet_#RFQ25052020.exe MSBuild.exe PID 304 wrote to memory of 988 304 Quotation Sheet_#RFQ25052020.exe MSBuild.exe PID 304 wrote to memory of 988 304 Quotation Sheet_#RFQ25052020.exe MSBuild.exe PID 304 wrote to memory of 988 304 Quotation Sheet_#RFQ25052020.exe MSBuild.exe PID 304 wrote to memory of 988 304 Quotation Sheet_#RFQ25052020.exe MSBuild.exe PID 304 wrote to memory of 988 304 Quotation Sheet_#RFQ25052020.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Quotation Sheet_#RFQ25052020.exe"C:\Users\Admin\AppData\Local\Temp\Quotation Sheet_#RFQ25052020.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/304-54-0x0000000075DB1000-0x0000000075DB3000-memory.dmpFilesize
8KB
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memory/304-64-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/304-65-0x0000000002680000-0x00000000026E6000-memory.dmpFilesize
408KB
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memory/988-55-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/988-57-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/988-62-0x000000000041E792-mapping.dmp
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memory/988-63-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/988-66-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/988-68-0x0000000074170000-0x000000007471B000-memory.dmpFilesize
5.7MB