Analysis
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max time kernel
150s -
max time network
125s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
13-07-2020 06:52
Static task
static1
Behavioral task
behavioral1
Sample
Paymentslip.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
Paymentslip.exe
Resource
win10
General
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Target
Paymentslip.exe
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Size
407KB
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MD5
4c01b0109f1d384274d3d040a5986389
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SHA1
1c9b48f4553cf8e253e1e2b837bb1a63538514e9
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SHA256
726560b23196c87e1ed4bdd90c4d655ad0c2b935af6e436a20ba9277ffa99edf
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SHA512
6d975336b2988d07aad33ce8f53a1b4436392c701e5fafbc52a1d98145cd84960fd967c79f180af8c5c2b50329aebcf56d118b1b7353fb62d2f539ba69c2c202
Malware Config
Extracted
nanocore
1.2.2.0
185.165.153.26:1985
2276abda-5081-40bb-9a10-f4ca8116bc08
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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
2020-03-19T23:28:11.122410736Z
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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
true
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connect_delay
4000
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connection_port
1985
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default_group
Xmen
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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
2276abda-5081-40bb-9a10-f4ca8116bc08
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
185.165.153.26
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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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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegSvcs.exepid process 1896 RegSvcs.exe -
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 1848 schtasks.exe 460 schtasks.exe 1336 schtasks.exe -
Adds Run entry to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Service = "C:\\Program Files (x86)\\WPA Service\\wpasvc.exe" RegSvcs.exe -
Drops file in Program Files directory 2 IoCs
Processes:
RegSvcs.exedescription ioc process File created C:\Program Files (x86)\WPA Service\wpasvc.exe RegSvcs.exe File opened for modification C:\Program Files (x86)\WPA Service\wpasvc.exe RegSvcs.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
Paymentslip.exeRegSvcs.exedescription pid process target process PID 240 wrote to memory of 1848 240 Paymentslip.exe schtasks.exe PID 240 wrote to memory of 1848 240 Paymentslip.exe schtasks.exe PID 240 wrote to memory of 1848 240 Paymentslip.exe schtasks.exe PID 240 wrote to memory of 1848 240 Paymentslip.exe schtasks.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 240 wrote to memory of 1896 240 Paymentslip.exe RegSvcs.exe PID 1896 wrote to memory of 460 1896 RegSvcs.exe schtasks.exe PID 1896 wrote to memory of 460 1896 RegSvcs.exe schtasks.exe PID 1896 wrote to memory of 460 1896 RegSvcs.exe schtasks.exe PID 1896 wrote to memory of 460 1896 RegSvcs.exe schtasks.exe PID 1896 wrote to memory of 1336 1896 RegSvcs.exe schtasks.exe PID 1896 wrote to memory of 1336 1896 RegSvcs.exe schtasks.exe PID 1896 wrote to memory of 1336 1896 RegSvcs.exe schtasks.exe PID 1896 wrote to memory of 1336 1896 RegSvcs.exe schtasks.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Paymentslip.exedescription pid process target process PID 240 set thread context of 1896 240 Paymentslip.exe RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Paymentslip.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 240 Paymentslip.exe Token: SeDebugPrivilege 1896 RegSvcs.exe Token: SeDebugPrivilege 1896 RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
Paymentslip.exeRegSvcs.exepid process 240 Paymentslip.exe 1896 RegSvcs.exe 1896 RegSvcs.exe -
Processes:
RegSvcs.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Paymentslip.exe"C:\Users\Admin\AppData\Local\Temp\Paymentslip.exe"1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:240 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UmlZknQDQvU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E5D.tmp"2⤵
- Creates scheduled task(s)
PID:1848 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Suspicious behavior: GetForegroundWindowSpam
- Adds Run entry to start application
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Checks whether UAC is enabled
PID:1896 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp56E5.tmp"3⤵
- Creates scheduled task(s)
PID:460 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WPA Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5753.tmp"3⤵
- Creates scheduled task(s)
PID:1336
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp4E5D.tmp
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C:\Users\Admin\AppData\Local\Temp\tmp56E5.tmp
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C:\Users\Admin\AppData\Local\Temp\tmp5753.tmp
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memory/240-1-0x0000000000000000-0x0000000000000000-disk.dmp
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memory/460-8-0x0000000000000000-mapping.dmp
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memory/1336-10-0x0000000000000000-mapping.dmp
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memory/1848-2-0x0000000000000000-mapping.dmp
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memory/1896-4-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1896-5-0x000000000041E792-mapping.dmp
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memory/1896-6-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1896-7-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB