Analysis
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max time kernel
152s -
max time network
173s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 12:11
Static task
static1
Behavioral task
behavioral1
Sample
00063362123456.exe
Resource
win7-20220414-en
General
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Target
00063362123456.exe
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Size
627KB
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MD5
5ad19231f51175c163381772f37ef5b8
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SHA1
7575d7ff9e9aed5720c7b8995c9e565087be11fe
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SHA256
ea4115e347193aa868162072e3db30d9652650aa2915726aa83d91beb202b9bb
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SHA512
9723c1c2cb149b2be90a37a1bb95070c2196c7d78c03a03851eee09c63a5045a2e1d83108c4677b80d9dc0f3673aba9707f3b4063e0848d2097844a9a2f48781
Malware Config
Extracted
nanocore
1.2.2.0
185.244.30.18:1985
f1d5e27e-9121-4465-872e-3fad7c4aba98
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activate_away_mode
true
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backup_connection_host
185.244.30.18
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-06-07T20:17:50.398555636Z
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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
1985
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default_group
Obama
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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
f1d5e27e-9121-4465-872e-3fad7c4aba98
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
185.244.30.18
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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:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Subsystem = "C:\\Program Files (x86)\\WPA Subsystem\\wpass.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
00063362123456.exedescription pid process target process PID 1904 set thread context of 1728 1904 00063362123456.exe RegSvcs.exe -
Drops file in Program Files directory 2 IoCs
Processes:
RegSvcs.exedescription ioc process File created C:\Program Files (x86)\WPA Subsystem\wpass.exe RegSvcs.exe File opened for modification C:\Program Files (x86)\WPA Subsystem\wpass.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 1792 schtasks.exe 1124 schtasks.exe 1572 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
00063362123456.exeRegSvcs.exepid process 1904 00063362123456.exe 1728 RegSvcs.exe 1728 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
00063362123456.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1904 00063362123456.exe Token: SeDebugPrivilege 1728 RegSvcs.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
00063362123456.exeRegSvcs.exedescription pid process target process PID 1904 wrote to memory of 1792 1904 00063362123456.exe schtasks.exe PID 1904 wrote to memory of 1792 1904 00063362123456.exe schtasks.exe PID 1904 wrote to memory of 1792 1904 00063362123456.exe schtasks.exe PID 1904 wrote to memory of 1792 1904 00063362123456.exe schtasks.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1904 wrote to memory of 1728 1904 00063362123456.exe RegSvcs.exe PID 1728 wrote to memory of 1124 1728 RegSvcs.exe schtasks.exe PID 1728 wrote to memory of 1124 1728 RegSvcs.exe schtasks.exe PID 1728 wrote to memory of 1124 1728 RegSvcs.exe schtasks.exe PID 1728 wrote to memory of 1124 1728 RegSvcs.exe schtasks.exe PID 1728 wrote to memory of 1572 1728 RegSvcs.exe schtasks.exe PID 1728 wrote to memory of 1572 1728 RegSvcs.exe schtasks.exe PID 1728 wrote to memory of 1572 1728 RegSvcs.exe schtasks.exe PID 1728 wrote to memory of 1572 1728 RegSvcs.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\00063362123456.exe"C:\Users\Admin\AppData\Local\Temp\00063362123456.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\WFwFcxWlwv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp394A.tmp"2⤵
- Creates scheduled task(s)
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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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WPA Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp620E.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WPA Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6605.tmp"3⤵
- Creates scheduled task(s)
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\tmp394A.tmpFilesize
1KB
MD5448ae5bb1bc643cf283f2253be25c465
SHA1321e734c370c345032714aae5bcba34cfa055f3d
SHA2566c5cd4b617c7572e615af6a156a4b89c062ef52c76f4a9bc9ad018270024a79b
SHA51245e7e3e1e7dfa251a3a8bb44e36d7f121f0bd6d56aab98e1d682fc474bde410b1ca77c7b35535470f4a85164ae2c0fb26a4b6fefd2f76305fec6b1d730b72c78
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C:\Users\Admin\AppData\Local\Temp\tmp620E.tmpFilesize
1KB
MD58cad1b41587ced0f1e74396794f31d58
SHA111054bf74fcf5e8e412768035e4dae43aa7b710f
SHA2563086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c
SHA51299c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef
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C:\Users\Admin\AppData\Local\Temp\tmp6605.tmpFilesize
1KB
MD54365cd1ae65923a319ef2683a45891fe
SHA185dde233112660e31c53884aedfbad52e4547e09
SHA25684b6ce4ba26fa6fb57fa70b9ad191f7c42c71e259897955b5d514385bcd91b58
SHA512d1bd24f504c5c2ecaa3ae98268ccc2e400ea3e16980c6caf394eadf7738225e4d5578fbe62bbe2de3fe0cb56a0d76bb3fc84cef3b9cd2f3d8be6d0becefdc035
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memory/1124-74-0x0000000000000000-mapping.dmp
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memory/1572-76-0x0000000000000000-mapping.dmp
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memory/1728-65-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1728-78-0x00000000009F0000-0x00000000009FA000-memory.dmpFilesize
40KB
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memory/1728-61-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1728-62-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1728-64-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1728-67-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1728-68-0x000000000041E792-mapping.dmp
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memory/1728-70-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1728-72-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1728-81-0x0000000004B85000-0x0000000004B96000-memory.dmpFilesize
68KB
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memory/1728-80-0x0000000000B10000-0x0000000000B1A000-memory.dmpFilesize
40KB
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memory/1728-79-0x0000000000A00000-0x0000000000A1E000-memory.dmpFilesize
120KB
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memory/1792-59-0x0000000000000000-mapping.dmp
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memory/1904-54-0x0000000000AD0000-0x0000000000B74000-memory.dmpFilesize
656KB
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memory/1904-55-0x0000000075FB1000-0x0000000075FB3000-memory.dmpFilesize
8KB
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memory/1904-56-0x0000000000350000-0x0000000000360000-memory.dmpFilesize
64KB
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memory/1904-57-0x0000000004C00000-0x0000000004C74000-memory.dmpFilesize
464KB
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memory/1904-58-0x0000000001F80000-0x0000000001FC8000-memory.dmpFilesize
288KB