Analysis
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max time kernel
54s -
max time network
186s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
21-07-2021 14:28
Static task
static1
Behavioral task
behavioral1
Sample
Contact00212399490.exe
Resource
win7v20210408
General
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Target
Contact00212399490.exe
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Size
1.2MB
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MD5
a6bd3de048002bee7a8d973c887227d8
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SHA1
90cf93d93b141654a62ff3a3b6810faef2ff3d69
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SHA256
1e3539b9de51134004ff4bff43ab144e748a329265decf8421442cef3109210d
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SHA512
6b84954f6dbe9c7d5a7580c2d917414a7875494508a3d17b4f092d270fecbe695e10f6eb27de52aac807d06a432e3902dc9a9671c7bc2b170b46afba1b6f30c6
Malware Config
Extracted
nanocore
1.2.2.0
hncbeyghfsbvcuabgsbncvzgaioiuyegdbhabbbw.ydns.eu:2017
238a496b-ffb2-448a-bc1f-f27aa51697ac
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activate_away_mode
true
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backup_connection_host
hncbeyghfsbvcuabgsbncvzgaioiuyegdbhabbbw.ydns.eu
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2021-05-01T15:35:35.227430336Z
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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
2017
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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
238a496b-ffb2-448a-bc1f-f27aa51697ac
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mutex_timeout
5000
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prevent_system_sleep
false
- primary_connection_host
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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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Contact00212399490.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DPI Service = "C:\\Program Files (x86)\\DPI Service\\dpisv.exe" Contact00212399490.exe -
Processes:
Contact00212399490.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Contact00212399490.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Contact00212399490.exedescription pid process target process PID 2016 set thread context of 700 2016 Contact00212399490.exe Contact00212399490.exe -
Drops file in Program Files directory 2 IoCs
Processes:
Contact00212399490.exedescription ioc process File created C:\Program Files (x86)\DPI Service\dpisv.exe Contact00212399490.exe File opened for modification C:\Program Files (x86)\DPI Service\dpisv.exe Contact00212399490.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
Contact00212399490.exepid process 700 Contact00212399490.exe 700 Contact00212399490.exe 700 Contact00212399490.exe 700 Contact00212399490.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Contact00212399490.exepid process 700 Contact00212399490.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Contact00212399490.exedescription pid process Token: SeDebugPrivilege 700 Contact00212399490.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
Contact00212399490.exeContact00212399490.exedescription pid process target process PID 2016 wrote to memory of 700 2016 Contact00212399490.exe Contact00212399490.exe PID 2016 wrote to memory of 700 2016 Contact00212399490.exe Contact00212399490.exe PID 2016 wrote to memory of 700 2016 Contact00212399490.exe Contact00212399490.exe PID 2016 wrote to memory of 700 2016 Contact00212399490.exe Contact00212399490.exe PID 2016 wrote to memory of 700 2016 Contact00212399490.exe Contact00212399490.exe PID 2016 wrote to memory of 700 2016 Contact00212399490.exe Contact00212399490.exe PID 2016 wrote to memory of 700 2016 Contact00212399490.exe Contact00212399490.exe PID 2016 wrote to memory of 700 2016 Contact00212399490.exe Contact00212399490.exe PID 2016 wrote to memory of 700 2016 Contact00212399490.exe Contact00212399490.exe PID 700 wrote to memory of 908 700 Contact00212399490.exe schtasks.exe PID 700 wrote to memory of 908 700 Contact00212399490.exe schtasks.exe PID 700 wrote to memory of 908 700 Contact00212399490.exe schtasks.exe PID 700 wrote to memory of 908 700 Contact00212399490.exe schtasks.exe PID 700 wrote to memory of 572 700 Contact00212399490.exe schtasks.exe PID 700 wrote to memory of 572 700 Contact00212399490.exe schtasks.exe PID 700 wrote to memory of 572 700 Contact00212399490.exe schtasks.exe PID 700 wrote to memory of 572 700 Contact00212399490.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Contact00212399490.exe"C:\Users\Admin\AppData\Local\Temp\Contact00212399490.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Users\Admin\AppData\Local\Temp\Contact00212399490.exe"{path}"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:700 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DPI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp99CF.tmp"3⤵
- Creates scheduled task(s)
PID:908
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DPI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9C7F.tmp"3⤵
- Creates scheduled task(s)
PID:572
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
ebeb8ed1ee83347982221fe1fdedb735
SHA1a67c62bb6efb43ce93f41952448c92920b5d91dd
SHA256e71437814b04100346bedec461de661c9b3f4219e827c5d350f07f325c5e37ee
SHA5129baf4c6a893d8e182f1c90049b6459c5db94d7d1aaa0023b2a14e8d74dacfc642cc11a988384f4cf028d828c47a5c71a8b2e3dcddd0e9196f7a31cf05e7df9f1
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MD5
a9af285136db016a568e4a53208f21d0
SHA1e1afef2b7ee8ae945353315daa19a15574b435b7
SHA2567dce876e35550f4a5b8ce8a8bbab3b0ccd7c5b8660f9db4b832466b77e3a8b7c
SHA51280a1f5e463a87cddc0f66336e2dc4262daf98984c6f6c662c3615d615ebe7c58677c3d694edb3bd7816ccee969aae967c7efe8526ba423f274ac1210c0c8bd6e