Analysis
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max time kernel
66s -
max time network
149s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
26-11-2020 06:40
Static task
static1
Behavioral task
behavioral1
Sample
Receipt#502.exe
Resource
win7v20201028
General
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Target
Receipt#502.exe
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Size
680KB
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MD5
e2e26573196fd444c8845d29e73a6b00
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SHA1
8a2fc9e82c11d234e74846451b12c73d69dea955
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SHA256
40fe69be55041a8607bf2596d0fa649ab26f6d6bd6973fb955f14f4e8a066b6c
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SHA512
02906faffe3bb49e0a936f5d07215ffe8b7cc28b2f65536e17b1b6204aa7966998b4a70bb09bf5a1fdfaa6efef6f729fbeabb1a2e3c540cd1965f73edabc8b78
Malware Config
Extracted
nanocore
1.2.2.0
without.duckdns.org:2078
17fd7e7e-3990-4c53-9987-94767303fd64
-
activate_away_mode
true
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backup_connection_host
without.duckdns.org
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-09-03T20:18:47.158112236Z
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bypass_user_account_control
true
- 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
2078
-
default_group
without
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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
-
keyboard_logging
false
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lan_timeout
2500
-
max_packet_size
1.048576e+07
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mutex
17fd7e7e-3990-4c53-9987-94767303fd64
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
without.duckdns.org
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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
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Suspicious use of SetThreadContext 1 IoCs
Processes:
Receipt#502.exedescription pid process target process PID 4756 set thread context of 568 4756 Receipt#502.exe RegSvcs.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 7 IoCs
Processes:
Receipt#502.exeRegSvcs.exepid process 4756 Receipt#502.exe 568 RegSvcs.exe 568 RegSvcs.exe 568 RegSvcs.exe 568 RegSvcs.exe 568 RegSvcs.exe 568 RegSvcs.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegSvcs.exepid process 568 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Receipt#502.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 4756 Receipt#502.exe Token: SeDebugPrivilege 568 RegSvcs.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
Receipt#502.exedescription pid process target process PID 4756 wrote to memory of 2796 4756 Receipt#502.exe schtasks.exe PID 4756 wrote to memory of 2796 4756 Receipt#502.exe schtasks.exe PID 4756 wrote to memory of 2796 4756 Receipt#502.exe schtasks.exe PID 4756 wrote to memory of 568 4756 Receipt#502.exe RegSvcs.exe PID 4756 wrote to memory of 568 4756 Receipt#502.exe RegSvcs.exe PID 4756 wrote to memory of 568 4756 Receipt#502.exe RegSvcs.exe PID 4756 wrote to memory of 568 4756 Receipt#502.exe RegSvcs.exe PID 4756 wrote to memory of 568 4756 Receipt#502.exe RegSvcs.exe PID 4756 wrote to memory of 568 4756 Receipt#502.exe RegSvcs.exe PID 4756 wrote to memory of 568 4756 Receipt#502.exe RegSvcs.exe PID 4756 wrote to memory of 568 4756 Receipt#502.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Receipt#502.exe"C:\Users\Admin\AppData\Local\Temp\Receipt#502.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NeKPJNb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3384.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp3384.tmpMD5
e887b7d304b7d57eaf3c07086dbd102f
SHA12758ce37d82e2ddf2a662b96175ff5babf7d9b51
SHA25618a376a5a0775c1bec582a0f0d5ca3393912e678413b9a8319d75a3530018df7
SHA512ebec00a5f6105b1ec8376129fc5c6488b4d7b4c510f5e72bc2c99da94be1eb924b02d91ab85601ac87d49c390263d5b31d046630b89ee16cfa72f0d825821fdc
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memory/568-2-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/568-3-0x000000000041E792-mapping.dmp
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memory/2796-0-0x0000000000000000-mapping.dmp