Analysis
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max time kernel
61s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
13/11/2022, 00:23
Static task
static1
Behavioral task
behavioral1
Sample
Payment advice.exe
Resource
win7-20220812-en
General
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Target
Payment advice.exe
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Size
365KB
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MD5
8f611e4d2ddc8f4d2c035492a85c42ff
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SHA1
e9fac31b5585503a8866899f493e3980a9e7cb3c
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SHA256
982d20cce7e6458f1b964b36efef0c7245bd155962c04b08e02323c9efc60f3b
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SHA512
743b7a2d06121e837710c5656dd5b00531b16210ee1777923720cfbda72a4e648f752fb6a41ff5782aebee27ad307113f66f6826f5e0e5b96cd7f002a2db29e0
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SSDEEP
6144:zsQPugqOYPVaWsQFRoi1rzHsdMKQ6VaxEvEayYCVdKrLKTI0ppU:z3kAWsQnoiFzHNIVqEM+Ci/QI0ppU
Malware Config
Extracted
nanocore
1.2.2.0
brewsterchristophe.ddns.net:5899
194,147,5,75:5899
b8aebc29-8c64-444f-99e6-dc4122e9bbfc
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activate_away_mode
true
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backup_connection_host
194,147,5,75
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2022-04-29T03:26:40.572298236Z
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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
5899
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default_group
Default
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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
b8aebc29-8c64-444f-99e6-dc4122e9bbfc
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
brewsterchristophe.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 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Systeddgsm.exe Powershell.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Systeddgsm.exe Powershell.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2148 set thread context of 2284 2148 Payment advice.exe 89 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe RegSvcs.exe File opened for modification C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe RegSvcs.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3616 schtasks.exe 4656 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2252 Powershell.exe 2252 Powershell.exe 2284 RegSvcs.exe 2284 RegSvcs.exe 2284 RegSvcs.exe 2284 RegSvcs.exe 2284 RegSvcs.exe 2284 RegSvcs.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2284 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2148 Payment advice.exe Token: SeDebugPrivilege 2252 Powershell.exe Token: SeDebugPrivilege 2284 RegSvcs.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2148 wrote to memory of 2252 2148 Payment advice.exe 87 PID 2148 wrote to memory of 2252 2148 Payment advice.exe 87 PID 2148 wrote to memory of 2252 2148 Payment advice.exe 87 PID 2148 wrote to memory of 2284 2148 Payment advice.exe 89 PID 2148 wrote to memory of 2284 2148 Payment advice.exe 89 PID 2148 wrote to memory of 2284 2148 Payment advice.exe 89 PID 2148 wrote to memory of 2284 2148 Payment advice.exe 89 PID 2148 wrote to memory of 2284 2148 Payment advice.exe 89 PID 2148 wrote to memory of 2284 2148 Payment advice.exe 89 PID 2148 wrote to memory of 2284 2148 Payment advice.exe 89 PID 2148 wrote to memory of 2284 2148 Payment advice.exe 89 PID 2284 wrote to memory of 3616 2284 RegSvcs.exe 90 PID 2284 wrote to memory of 3616 2284 RegSvcs.exe 90 PID 2284 wrote to memory of 3616 2284 RegSvcs.exe 90 PID 2284 wrote to memory of 4656 2284 RegSvcs.exe 92 PID 2284 wrote to memory of 4656 2284 RegSvcs.exe 92 PID 2284 wrote to memory of 4656 2284 RegSvcs.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\Payment advice.exe"C:\Users\Admin\AppData\Local\Temp\Payment advice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2148 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Payment advice.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Systeddgsm.exe'2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2252
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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
PID:2284 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4873.tmp"3⤵
- Creates scheduled task(s)
PID:3616
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4920.tmp"3⤵
- Creates scheduled task(s)
PID:4656
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD58cad1b41587ced0f1e74396794f31d58
SHA111054bf74fcf5e8e412768035e4dae43aa7b710f
SHA2563086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c
SHA51299c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef
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Filesize
1KB
MD52f26d92c1eeead3896820e56ec46f6f1
SHA1d95533b61eed7d89e4ada56bc566d60e42ac1f61
SHA25699a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa
SHA5126c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892