Analysis
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max time kernel
145s -
max time network
148s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
19-01-2021 06:09
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7v20201028
General
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Target
file.exe
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Size
559KB
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MD5
60ad8c8508454346f3aa9730336bc87f
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SHA1
6c12acef3d5d54d356b636f6601a957ae0f9819d
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SHA256
32a62159880333e8affae98b4bd37658b480974f0f3842687929b3bb3d4e8faf
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SHA512
74d15d13fee811b62e49ae895c39ef0bdccfbbd835b7ba4c59df2196e039193d83032f668ee2f56d386c946d9e99a577fd22c56f61735dd22f123ff4e42765e1
Malware Config
Extracted
nanocore
1.2.2.0
mimi121.duckdns.org:5090
c536defd-5b4b-4102-b411-7da22a027e3a
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activate_away_mode
true
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backup_connection_host
mimi121.duckdns.org
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backup_dns_server
mimi121.duckdns.org
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buffer_size
65535
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build_time
2020-10-26T15:52:24.571973436Z
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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
5090
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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
c536defd-5b4b-4102-b411-7da22a027e3a
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
mimi121.duckdns.org
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primary_dns_server
mimi121.duckdns.org
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request_elevation
false
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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:
MSBuild.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Manager = "C:\\Program Files (x86)\\SMTP Manager\\smtpmgr.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
file.exedescription pid process target process PID 1052 set thread context of 2732 1052 file.exe MSBuild.exe -
Drops file in Program Files directory 2 IoCs
Processes:
MSBuild.exedescription ioc process File created C:\Program Files (x86)\SMTP Manager\smtpmgr.exe MSBuild.exe File opened for modification C:\Program Files (x86)\SMTP Manager\smtpmgr.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 1400 schtasks.exe 2596 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
MSBuild.exepid process 2732 MSBuild.exe 2732 MSBuild.exe 2732 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
MSBuild.exepid process 2732 MSBuild.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
file.exepid process 1052 file.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 2732 MSBuild.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
file.exeMSBuild.exedescription pid process target process PID 1052 wrote to memory of 2732 1052 file.exe MSBuild.exe PID 1052 wrote to memory of 2732 1052 file.exe MSBuild.exe PID 1052 wrote to memory of 2732 1052 file.exe MSBuild.exe PID 1052 wrote to memory of 2732 1052 file.exe MSBuild.exe PID 2732 wrote to memory of 2596 2732 MSBuild.exe schtasks.exe PID 2732 wrote to memory of 2596 2732 MSBuild.exe schtasks.exe PID 2732 wrote to memory of 2596 2732 MSBuild.exe schtasks.exe PID 2732 wrote to memory of 1400 2732 MSBuild.exe schtasks.exe PID 2732 wrote to memory of 1400 2732 MSBuild.exe schtasks.exe PID 2732 wrote to memory of 1400 2732 MSBuild.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Users\Admin\AppData\Local\Temp\file.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 "SMTP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5588.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SMTP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp56E1.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp5588.tmpMD5
3e2b26ed8b75ae83a269595180e84ef6
SHA1d30a0335fcce406bca8ba5764288235e6192f608
SHA256108be30aeb8eb31c185a39a6726f26dacbc4e4124951c61a29ade4b7038c71ea
SHA512b6981c68fcb886cc8379a068b96931b9d4f5cc5aa9bdc467e36c4168fe6c5273a2a84d8850b12c11703ec03ac6b1f1950d1e669efcb59fc2402ce4bba9dc03d3
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C:\Users\Admin\AppData\Local\Temp\tmp56E1.tmpMD5
b3b017f9df206021717a11f11d895402
SHA1e4ea12823af6550ee634536eec1eb14490580a3b
SHA256654dfce2c28024364e679e1b958f3fb81fc6d29685d534d905d1c83a84351024
SHA51295666cb81aa1fd1ade04a32f63381ce8bff274d7d300c0b59cbb10a294c4d1eebaa3000365a2000b38793de030044995cf23e623c5e3648d9b00501f97ff9343
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memory/1400-13-0x0000000000000000-mapping.dmp
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memory/2596-11-0x0000000000000000-mapping.dmp
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memory/2732-7-0x0000000004DB0000-0x0000000004DB1000-memory.dmpFilesize
4KB
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memory/2732-8-0x0000000004E50000-0x0000000004E51000-memory.dmpFilesize
4KB
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memory/2732-9-0x0000000005080000-0x0000000005081000-memory.dmpFilesize
4KB
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memory/2732-10-0x0000000004F00000-0x0000000004F01000-memory.dmpFilesize
4KB
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memory/2732-2-0x000000000041E792-mapping.dmp
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memory/2732-6-0x00000000052B0000-0x00000000052B1000-memory.dmpFilesize
4KB
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memory/2732-4-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2732-3-0x0000000073B70000-0x000000007425E000-memory.dmpFilesize
6.9MB
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memory/2732-15-0x0000000005000000-0x0000000005005000-memory.dmpFilesize
20KB
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memory/2732-16-0x0000000005290000-0x00000000052A9000-memory.dmpFilesize
100KB
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memory/2732-17-0x0000000005FA0000-0x0000000005FA3000-memory.dmpFilesize
12KB
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memory/2732-18-0x0000000005083000-0x0000000005085000-memory.dmpFilesize
8KB