Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 18:42
Static task
static1
Behavioral task
behavioral1
Sample
R.F.Q.exe
Resource
win7-20220414-en
General
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Target
R.F.Q.exe
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Size
1.4MB
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MD5
937848a81c34064acfb5357a7c1e58b3
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SHA1
5b5cadb7267f6f97ba5cc84e70e8ba0bc6d0d3c6
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SHA256
723baf8bb4210bfae985af70315eb9e2cb6ebef6dfd117219da3a9bb00186cd5
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SHA512
febfef00bbf7ddd78ea735a248a0776178dde2c6f4b17af96211904eb7943ab57ac6aed43681590db409eab16335f95b71ef81acd7ac05db7ccedb8e8f606280
Malware Config
Extracted
nanocore
1.2.2.0
185.244.29.132:1985
127.0.0.1:1985
f61bbd75-d4b8-4ea7-be06-9084282264d7
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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
2020-02-21T01:06:21.461976936Z
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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
1985
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default_group
Scarface
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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
f61bbd75-d4b8-4ea7-be06-9084282264d7
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
185.244.29.132
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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
false
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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:
R.F.Q.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cscript.url R.F.Q.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\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsvc.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
R.F.Q.exedescription pid process target process PID 4104 set thread context of 4760 4104 R.F.Q.exe MSBuild.exe -
Drops file in Program Files directory 2 IoCs
Processes:
MSBuild.exedescription ioc process File opened for modification C:\Program Files (x86)\TCP Service\tcpsvc.exe MSBuild.exe File created C:\Program Files (x86)\TCP Service\tcpsvc.exe MSBuild.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1984 schtasks.exe 4940 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 31 IoCs
Processes:
MSBuild.exeR.F.Q.exepid process 4760 MSBuild.exe 4760 MSBuild.exe 4760 MSBuild.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
MSBuild.exepid process 4760 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 4760 MSBuild.exe Token: SeDebugPrivilege 4760 MSBuild.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
R.F.Q.exepid process 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
R.F.Q.exepid process 4104 R.F.Q.exe 4104 R.F.Q.exe 4104 R.F.Q.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
R.F.Q.exeMSBuild.exedescription pid process target process PID 4104 wrote to memory of 4760 4104 R.F.Q.exe MSBuild.exe PID 4104 wrote to memory of 4760 4104 R.F.Q.exe MSBuild.exe PID 4104 wrote to memory of 4760 4104 R.F.Q.exe MSBuild.exe PID 4104 wrote to memory of 4760 4104 R.F.Q.exe MSBuild.exe PID 4104 wrote to memory of 4760 4104 R.F.Q.exe MSBuild.exe PID 4760 wrote to memory of 1984 4760 MSBuild.exe schtasks.exe PID 4760 wrote to memory of 1984 4760 MSBuild.exe schtasks.exe PID 4760 wrote to memory of 1984 4760 MSBuild.exe schtasks.exe PID 4760 wrote to memory of 4940 4760 MSBuild.exe schtasks.exe PID 4760 wrote to memory of 4940 4760 MSBuild.exe schtasks.exe PID 4760 wrote to memory of 4940 4760 MSBuild.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\R.F.Q.exe"C:\Users\Admin\AppData\Local\Temp\R.F.Q.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- 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
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8840.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8B4E.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp8840.tmpFilesize
1KB
MD5ae766004c0d8792953bafffe8f6a2e3b
SHA114b12f27543a401e2fe0af8052e116cab0032426
SHA2561abdd9b6a6b84e4ba1af1282dc84ce276c59ba253f4c4af05fea498a4fd99540
SHA512e530da4a5d4336fc37838d0e93b5eb3804b9c489c71f6954a47fc81a4c655bb72ec493e109cf96e6e3617d7623ac80697ad3bbd5ffc6281bafc8b34dca5e6567
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C:\Users\Admin\AppData\Local\Temp\tmp8B4E.tmpFilesize
1KB
MD59db6095f31f8b4ae8173fe11424a8dfe
SHA14b0655ae95def24a41710ca137649d93bfa49407
SHA2569911b4513e44521c90c020ddcddea1ddc58095055a72ec638b593bf9ee23aa72
SHA5125bee977264545a30a2d53e674f54a4066d4529dc9162d46911b9cac957052cdc1ea7c8d60f9c57d3f33db6cb964b1e6bb2347d0e0e2af0a32ac98938c02ffc1c
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memory/1984-138-0x0000000000000000-mapping.dmp
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memory/4104-131-0x0000000000C10000-0x0000000000C76000-memory.dmpFilesize
408KB
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memory/4104-132-0x0000000000CA0000-0x0000000000D06000-memory.dmpFilesize
408KB
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memory/4760-130-0x0000000000000000-mapping.dmp
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memory/4760-133-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4760-141-0x0000000074600000-0x0000000074BB1000-memory.dmpFilesize
5.7MB
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memory/4940-140-0x0000000000000000-mapping.dmp