Analysis
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max time kernel
151s -
max time network
154s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
08-07-2020 16:51
Static task
static1
Behavioral task
behavioral1
Sample
STB 1118 08 07 2020.exe
Resource
win7v200430
General
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Target
STB 1118 08 07 2020.exe
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Size
676KB
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MD5
0fd38c429e9abefbb5020ee1927bd19b
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SHA1
f97be253991ef15ef29126590132f2550a01a9fe
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SHA256
bc0da635c9ba5ad0793cfb6b0db9c5b7ecfd9800722b2532fcf5deca7dad205f
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SHA512
296e4e3eb73c7446ca1c0221d96f8d95068f9c987df903703a13f4babc216e5fc6c458853688ea348cce08feb6de17e75083411b4602daa09a967c064f0cffd4
Malware Config
Extracted
nanocore
1.2.2.0
wazzy.ddns.net:1716
194.5.99.24:1716
c1ffd46d-254d-4433-8da6-7277dec7b59a
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activate_away_mode
true
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backup_connection_host
194.5.99.24
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-03-28T11:57:28.371938436Z
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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
1716
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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
c1ffd46d-254d-4433-8da6-7277dec7b59a
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
wazzy.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
true
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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
-
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
STB 1118 08 07 2020.exedescription pid process Token: SeDebugPrivilege 1100 STB 1118 08 07 2020.exe -
UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
Processes:
resource yara_rule behavioral1/memory/1100-0-0x0000000000400000-0x000000000047F000-memory.dmp upx behavioral1/memory/1100-3-0x0000000000400000-0x000000000047F000-memory.dmp upx behavioral1/memory/1100-4-0x0000000000400000-0x000000000047F000-memory.dmp upx -
Processes:
STB 1118 08 07 2020.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA STB 1118 08 07 2020.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
STB 1118 08 07 2020.exepid process 376 STB 1118 08 07 2020.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
STB 1118 08 07 2020.exeSTB 1118 08 07 2020.exedescription pid process target process PID 376 wrote to memory of 1100 376 STB 1118 08 07 2020.exe STB 1118 08 07 2020.exe PID 376 wrote to memory of 1100 376 STB 1118 08 07 2020.exe STB 1118 08 07 2020.exe PID 376 wrote to memory of 1100 376 STB 1118 08 07 2020.exe STB 1118 08 07 2020.exe PID 376 wrote to memory of 1100 376 STB 1118 08 07 2020.exe STB 1118 08 07 2020.exe PID 376 wrote to memory of 1076 376 STB 1118 08 07 2020.exe STB 1118 08 07 2020.exe PID 376 wrote to memory of 1076 376 STB 1118 08 07 2020.exe STB 1118 08 07 2020.exe PID 376 wrote to memory of 1076 376 STB 1118 08 07 2020.exe STB 1118 08 07 2020.exe PID 376 wrote to memory of 1076 376 STB 1118 08 07 2020.exe STB 1118 08 07 2020.exe PID 1100 wrote to memory of 1688 1100 STB 1118 08 07 2020.exe schtasks.exe PID 1100 wrote to memory of 1688 1100 STB 1118 08 07 2020.exe schtasks.exe PID 1100 wrote to memory of 1688 1100 STB 1118 08 07 2020.exe schtasks.exe PID 1100 wrote to memory of 1688 1100 STB 1118 08 07 2020.exe schtasks.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
STB 1118 08 07 2020.exedescription pid process target process PID 376 set thread context of 1100 376 STB 1118 08 07 2020.exe STB 1118 08 07 2020.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
STB 1118 08 07 2020.exepid process 1100 STB 1118 08 07 2020.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 1368 IoCs
Processes:
STB 1118 08 07 2020.exeSTB 1118 08 07 2020.exeSTB 1118 08 07 2020.exepid process 376 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1100 STB 1118 08 07 2020.exe 1100 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe 1076 STB 1118 08 07 2020.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\STB 1118 08 07 2020.exe"C:\Users\Admin\AppData\Local\Temp\STB 1118 08 07 2020.exe"1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\STB 1118 08 07 2020.exe"C:\Users\Admin\AppData\Local\Temp\STB 1118 08 07 2020.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEA9C.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\STB 1118 08 07 2020.exe"C:\Users\Admin\AppData\Local\Temp\STB 1118 08 07 2020.exe" 2 1100 1233032⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpEA9C.tmp
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memory/1076-2-0x0000000000000000-mapping.dmp
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memory/1100-0-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/1100-3-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/1100-1-0x000000000047D740-mapping.dmp
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memory/1100-4-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/1100-5-0x0000000000360000-0x0000000000398000-memory.dmpFilesize
224KB
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memory/1100-6-0x0000000000262000-0x0000000000263000-memory.dmpFilesize
4KB
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memory/1100-7-0x0000000000220000-0x0000000000253000-memory.dmpFilesize
204KB
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memory/1688-9-0x0000000000000000-mapping.dmp